Home page for Yunping Xi, Ph.D.


              

A professor of the Department of Civil, Environmental and Architectural Engineering at the University of Colorado at Boulder.

The University Administrator for the Colorado Local Technical Assistance Program (CLTAP)

 

Email to Prof. Yunping  Xi 

Email address: yunping.xi@colorado.edu

       

Class websites

 

·         CVEN 2121 Statics

·         CVEN 3161 Mechanics of Materials I

·         CVEN 4161 Mechanics of Materials II

·         AREN 4317 Architectural Engineering Senior Design

·         CVEN 4899 Senior Design – Civil Engineering

·         CVEN 5161 Advanced Mechanics of Materials I

·         CVEN 5585 Advanced Topics in RC Design

·         CVEN 5831 Construction Materials

·         CVEN 5831 Infrastructural Rehabilitation

·         CVEN 5831 Stability of Structures

·         CVEN 6161 Advanced Mechanics of Materials II

 

_____________________________________________________________________________________________

 

Curriculum Vita of Yunping Xi, Ph.D.

 

      Professor

Civil, Environmental, and Architectural Engineering

    University of Colorado, Boulder, CO 80303

 Tel: (303) 492-8991, Fax: (303) 492-7317, Email: yunping.xi@colorado.edu

_____________________________________________________________________________________________

 

Education

 

Ph.D. in Structural Engineering, Northwestern University, Evanston, IL. (1991).

M.S.  in Structural Engineering, Central Research Institute of Building and Construction, Beijing (1985).

B.S.  in Civil Engineering, Beijing Institute of Civil Engineering and Architecture (1982).

 

Employment History

 

2005 – Present  Professor, University of Colorado at Boulder

2000 – 2005      Associate professor, University of Colorado at Boulder

1997 – 2000      Assistant professor, University of Colorado at Boulder

1993 – 1996      Assistant professor, Drexel University       

1991 – 1993      Research scientist, Northwestern University      

1987 – 1988      Visiting scholar, Northwestern University

1985 – 1987      Structural engineer, Beijing Central Research Inst. of Building and Construction.

1982 – 1983      Structural engineer, Beijing Design Institute of Building and Construction.

 

Research

 

Research interests and fundings

 

(1) Theoretical analysis and experimental study on long term durability of cementitious materials and reinforced concrete structures, including creep, shrinkage, fracture, freeze/thaw, and alkali-silica reaction of concrete; high temperature damage and radiation effect on concrete; chemical and moisture transport in concrete; and chloride-induced corrosion of steel in concrete.

 

(2) Monitoring and simulation of long-term performance of reinforced concrete and steel structures.  Development of simulation models for long-term deterioration processes in reinforced concrete structures, installing sensor network on concrete structures, and integrating simulation models and sensor network for utilization of monitoring data to calibrate model parameters in real time. 

 

(3) Evaluation of existing nuclear power plant structures: containment structures and dry casks.  Performance evaluation of protection systems for highway bridge decks: sealers, thin-bonded overlays, waterproof membranes, and cathodic protection systems. 

 

(4) Development of sustainable construction materials.  Reutilization of various solid wastes in concrete such as fly ash, waste glass, waste tires, and recycled concrete.  Applications of special additives in concrete, such as carbon nanotubes, optical fibers, forming agents, and phase change materials.  Optimization of concrete mix designs. 

 

See Prof. Yunping Xi’s Research Areas

 

Since 1993, Dr. Xi has participated more than 100 sponsored projects as PI or co-PI.  The total funding is about $17 million dollars as PI and co-PI.  The following are lists of some of the research projects.

 

Ongoing projects

 

1.      Federal Highway Administration and Colorado Department of Transportation “Colorado Local Technical Assistance Program for the Roadway Infrastructure System”, a long-term project from 1998 – present (PI).

 

2.      Colorado Department of Transportation “Asphalt and Non-asphalt Waterproof Membranes”, 2013-2017 (PI).

 

3.      Colorado Department of Transportation “Surface Chloride Level in Structural Concrete in Colorado”, 2013-2017 (PI).

 

4.      Department of Energy/National Energy Technology Lab “Nanoparticle Injection technology for Remediating Leaks of CO2 Storage Formation”, 2015-2018 (PI).

 

5.      Department of Energy/Nuclear Energy University Program “Multiple Degradation Mechanisms in Reinforced Concrete Structures, Modeling and Risk Analysis”, 2015-2018 (co-PI).

 

6.      Nuclear Regulatory Commission “Radiation Effects on Concrete Structures”, 2016-2019 (co-PI).

 

7.      OPP “Environmental and Human Impacts of Nuclear War”, 2017-2020 (co-PI)

 

Completed projects (partial list as PI or co-PI, listed chronologically)

 

1.      New Jersey (NJ) DOT “Chloride Permeability of Concrete with Silica Fume and Other Admixtures”, 1996 – 1998 (PI: Y. Xi).

 

2.      Ben Franklin Technology Center “Use of Recycled Glass as Raw Material in the Manufacture of Portland Cement”, 1996 – 1998 (PI: Y. Xi).

 

3.      New York State Energy Research and Development Authority (NYSERDA) via. Columbia University “Use of Recycled Glass and Fly Ash for Precast Concrete Products”, 1995 – 1997 (PI: Y. Xi).

 

4.      Air Force “Dynamic Performance Evaluation of Conventional and Non-Conventional Concrete, 1997 – 1998 (PI: K. Willam; co-PI: Y. Xi).

 

5.      CDOT “Roadway Safety Training”, 1998 – 2008 (PI: Y. Xi).

 

6.      NSF “Accelerated Testing and Reliable Modeling of Concrete Durability under Coupled Environmental and Mechanical Loadings”, sponsored by National Science Foundation, 1998 – 2002 (PI: Y. Xi; co-PIs: K. Willam, and D.M. Frangopol).

 

7.      NSF “Research Equipment Grant: Upgrade of the materials testing system”, 1998 – 1999 (PI: Y. Xi; co-PIs: B. Shing, and K. Willam).

 

8.      Federal Aviation Administration (FAA) “Fiber Optic Sensor Monitoring and Earthquake Analysis of TRACON Facility at Denver International Airport”, 1998 – 2001 (PI: S. Sture; co-PI: Y. Xi).

 

9.      CDOT “Evaluation of CDOT current and Potential Steel Corrosion Protection Measures”, 2000 – 2002 (PI: Y. Xi).

 

10.  Lockheed Martin via. Colorado Advanced Materials Institute (CAMI): “Evaluation of High-Temperature-Capable Fabric Materials”, 2000-2001 (PI: Y. Xi).

 

11.  CTS Wireless “Frequency Shift of Piezoelectric Devices”, 2000 – 2002 (PI: Y. Xi).

 

12.  CDOT “Evaluation of Fiber Reinforced Polymer Reinforced Bridge Decks”, 2000 – 2001 (PI: B. Shing; co-PIs: D.M. Frangopol, and Y. Xi).

 

13.  CDOT “Field Investigation of Cracking in Newly Constructed Bridge Decks”, 2000 – 2002 (PI: Y. Xi).

 

14.  NSF “NATO-NSF Workshop on Model-Based Simulation of Durability of Materials and Structures”, 2000 – 2002 (PI: Y. Xi).

 

15.  CDOT “Comparative Study on Corrosiveness of Different De-Icing Agents: Magnesium Chloride, Sodium Chloride, and Caliber M1000", 2001 – 2002 (PI: Y. Xi).

 

16.  NSF “A Live-Data Simulation System and Applications to Highway Bridge Performance Prediction”, 2001 – 2005 (PI: X.C. Cai; co-PI: Y. Xi).

 

17.  CDOT “Structural Testing and Monitoring by Fiber Optic Sensors of FRP Pedestrian Bridge in Denver O'Fallon Park”, 2002 – 2003 (PI: B. Shing; co-PIs: D.M. Frangopol, Y. Xi).

 

18.  Colorado Commission on Higher Education (CCHE) “High Toughness Rubber-Modified Concrete”, 2002 – 2003 (PI: Y. Xi).   

 

19.  CDOT “Materials, Testing Methods, and Construction Practices for Fast Concrete Desk Repair”, 2003 (PI: Y. Xi).

 

20.  CDOT “Repair of Corrosion Damage and Wireless Monitoring of Corrosion Potential of Castlewood Canyon Arch Bridge in Denver”, 2003 – 2004 (PI: B. Shing; co-PIs: D.M. Frangopol, and Y. Xi).

 

21.  NSF “Workshop on Interface Problems”, 2004 (PI: K. Willam; co-PI: Y. Xi).

 

22.  Sandia National Laboratory (SNL): “Structural Integrity of Reinforced Concrete Building Complexes Subjected to High Temperature”, 2004 – 2005 (PI: K. Willam; co-PI: Y. Xi).

 

23.  FHWA “Quantify Construction Delays Due to Weather” 2004 – 2007 (PI: Y. Xi; co-PIs: R. Balaji and K. Molenaar).

 

24.  CDOT “Evaluate Performance of CDOT’s Systems for Protection of Colorado’s Reinforced Concrete Bridge Decks”, 2005 – 2007 (PI: G. Hearn; co-PI: Y. Xi).

 

25.  Tokyo Electric Service Co. “Life Prediction in AAR Affected Structures and Confined AAR Expansion Test, Phase I and Phase II”, 2007 – 2008 (PI: V. Saouma; co-PI: Y. Xi).

 

26.  National Science Foundation (NSF) “High Temperature Effects on Concrete Materials: A Multiscale Approach”, 2004 – 2008 (PI: K. Willam; co-PI: Y. Xi).

 

27.  NASA “Refractory Materials Evaluation for Corrosion Protection of the KSC Launch Pad Flame Deflectors”, 2008 (PI: K. Willam; co-PI: Y. Xi).

 

28.  Obayashi Corp “Background Survey and Evidential Research on Concrete Temperature Limits Specified in ASME Codes”, 2009 (PI: K. Willam; co-PI: Y. Xi).

 

29.  Oak Ridge National Laboratory (ORNL) “Thermal Response of Reinforced Concrete Structures”, 2008-2009 (PI: K. Willam; co-PI: Y. Xi).

 

30.  Colorado Department of Transportation (CDOT) “Strategic Evaluation of Different Topical Protection Systems for Bridge Decks and the Associated Life-Cycle Cost Analysis”, 2007-2009 (PI: Y. Xi).

 

31.  Performance Improvement International (PII) “Unconventional Tests for a Nuclear Power Plant Containment Vessel”, 2009-2010 (PI: V. Saouma; co-PIs: M. Eck, and Y. Xi).

 

32.  Colorado Department of Public Health and Environment “Premixed Rubberized Insulation Mortar (PRIM)”, 2008-2010 (PI: Y. Xi).

 

33.  National Science Foundation “Penetration of Multi-Components De-icing Salts in Non-Saturated Concrete Structures”, 2007 – 2010 (PI: Y. Xi; co-PI: L.Y. Li).

 

34.  Colorado Department of Transportation “Application of Roller Compacted Concrete (RCC) in Colorado’s Roadways”, 2009-2011 (PI: Y. Xi).

 

35.  Colorado Department of Transportation “Evaluation and Monitoring of Performance of Bridge Deck Sealers”, 2008 to 2012 (PI: Y. Xi).

 

36.  Vestas Corp. “Panel Anchor Tests for Nacelle of Wind Turbine Towers”, 2012 (PI: Y. Xi).

 

37.  National Science Foundation “An Integrated Power Aware Sensor-Simulation Network System for Long-Term Performance Assessment of Concrete Infrastructures”, 2007 – 2013 (PI: Cai, X.C., co-PIs: R. Zane, and Y. Xi).

 

38.  National Science Foundation “Experimental Study and Theoretical Modeling of High Performance Recycled Aggregate Concrete”, 2009 – 2013 (PI: F. Vernerey; co-PI: Y. Xi).

 

39.  Oak Ridge National Laboratory via University of Houston “Advanced Reactor Designs: Effect of Irradiation on Concrete Materials and Structures”, 2011 – 2013 (PI: K. Willam; co-PI: Y. Xi).

 

40.  Korea Railway Research Institute “Durability Issues on Concrete Materials with Carbon Nano Tubes (CNT)”, 2012-2013 (PI: Y. Xi).

 

41.  Colorado Department of Transportation “Evaluation of Thin Bonded Overlays as Cost Effective Bridge Deck Barriers and Reducing Bridge Construction Costs”, 2012-2014 (PI: Y. Xi).

 

42.  Department of Energy/Nuclear Energy University Program “Concrete Materials with Ultra-High Damage Resistance and Self-Sensing Capacity for Extended Nuclear Fuel Storage Systems”, 2012-2015 (PI: M. Li; co-PIs: K. Willam, K. Nakshatrala, and Y. Xi).

 

43.  Department of Energy/Nuclear Energy University Program “Doubling the Life of Concrete Structures”, 2013-2016 (PI: B. Pesic, co-PIs: R.S. Khrishnan, G. Song, and Y. Xi).

 

Journal Articles (Peer-Reviewed)

 

1.      Nemecek, J., Li, L., and Xi, Y. (2017) “Electrokinetic Nanoparticle Injection for Remediating1 Leaks in Oil Well Cement”, Construction and Building Materials, in press.

 

2.      Kurtis, K., Xi, Y., Glinicki, M., Provis, J., Giannini, E., and Fu, T. (2017) “Can We Design Concrete to Survive Nuclear Environments?” Concrete International, Nov., 53-59.

 

3.      Wang, Y., and Xi, Y. (2017) “The Effect of Temperature on Moisture Transport in Concrete”, Materials, 10, 926, doi:10.3390/ma10080926.

 

4.      Xia, J., Xi, Y., and Jin, W. (2017) “Temperature Dependent Coefficient of Thermal Expansion of Concrete in Freezing Process”, J. of Eng. Mech., ASCE, DOI: 10.1061/(ASCE)EM.1943-7889.0001256.

 

5.      Musiket, K., Vernerey, F., and Xi, Y. (2017) “Numeral Modeling of Fracture Failure of Recycled Aggregate Concrete Beams under High Loading Rates”, International Journal of Fracture, doi:10.1007/s10704-016-0145-3. Online published 2016.

 

6.      Jiang, Z., Xi, Y., Gu, X., Huang, Q., and Zhang, W. (2017) “Mesoscopic Prediction of Cement Mortar Diffusivity by Analytical and Numerical Methods”, J. of Materials for Civil Engineering, ASCE, 29(4), DOI: 10.1061/(ASCE)MT.1943-5533.0001805.

 

7.      Jing, Y., and Xi, Y. (2017) “Theoretical Modeling of the Effects of Neutron Irradiation on Properties of Concrete”, J. Eng. Mech., ASCE, 143(12): 04017137, 1-14.

 

8.      Isteita, M.H., and Xi, Y. (2017) "The Effect of Thermal Conduction on Chloride Penetration in Concrete", Construction and Building Materials, 156, 73–82.

 

9.      Na, O., Cai, X.C., and Xi, Y. (2017) “Corrosion Prediction with Parallel Finite Element Modeling for Coupled Hygro-Chemo Transport into Concrete under Chloride-Rich Environment”, Materials, 10(4), 350; doi:10.3390/ma10040350.

 

10.  Jiang, Z., Huang, Q.H., Xi, Y., Gu, X.L., Zhang, W.P. (2016) “Experimental Study of Diffusivity of Interfacial Transition Zone between Cement Paste and Aggregate”, J. of Materials for Civil Engineering, ASCE, 28(10): 04016109; DOI: 10.1061/(ASCE)MT.1943-5533.0001637.

 

11.  Homan, L., Ababneh, A., and Xi, Y. (2016) “The Effect of Moisture Transport on Chloride Penetration in Concrete”, Construction and Building Materials, 125, 1189-1195.

 

12.  Na, O., and Xi, Y. (2016) “Mechanical and Durability Properties of Portland Cement Insulation Mortar with Rubber Powder from Waste Tires”, Journal of Material Cycles and Waste Management, DOI 10.1007/s10163-016-0475-2.

 

13.  Na, O., Ou, E., Xi, Y., and Saouma, V. (2016) “The Effects of Alkali-Silica Reaction on Mechanical Properties of Concrete with Three Different Types of Reactive Aggregates”, Structural Concrete, DOI: 10.1002/suco.201400062.

 

14.  Musiket, K., Rosendahl, M., and Xi, Y. (2016) “Fracture of Recycled Aggregate Concrete under High Loading Rates”, J. of Material in Civil Eng., ASCE, 10.1061/(ASCE)MT.1943-5533.0001513 , 04016018.

 

15.  Zhang, W.P., Tong, F., Gu, X.L., Xi, Y. (2015) “Study on Moisture Transport in Concrete in Atmospheric Environment”, Computers and Concrete, 16(5), 775-793.

 

16.  Zhang, W.P., Min, H.G., Gu, X.L., Xi, Y., Xing. Y.S. (2015) “Mesoscale Model for Thermal Conductivity of Concrete”, Construction and Building Materials, 98, 8-16.

 

17.  Bai, Y., Harajli, A., Xi, Y. (2015) “Analytical Solutions of Ionic Diffusion and Heat Conduction In Multi-Layered Porous Media”, Journal of Applied Mathematics, Vol. 2015, Article ID 208914, 11 pages, doi:10.1155/2015/208914.

 

18.  Damrongwiriyanupap, N., Limkatanyu, S., and Xi, Y. (2015) "A Thermo-Hygro coupled Model for Chloride Penetration in Concrete Structures", Advances in Materials Science and Engineering, vol. 2015, Article ID 682940, 10 pages, doi:10.1155/2015/682940.

 

19.  Damrongwiriyanupap, N., Li, L., and Xi, Y. (2014) “Temperature Effect on Multi-Ionic Species Diffusion in Saturated Concrete”, Computers and Concrete, 13(2), 149-171.

 

20.  Nemecek, J., and Xi, Y. (2014) “Nanoparticle Injection into Concrete Using Electromigration”, Advanced Materials Research, Vol. 1054, 6-10.

 

21.  Wang, X., Rhee, I., Wang, Y., and Xi, Y. (2014) "Compressive Strength, Chloride Permeability, and Freeze-Thaw Resistance of MWNT Concretes under Different Chemical Treatments", The Scientific World Journal, Vol. 2014, Article ID 572102, 8 pages, doi:10.1155/2014/572102.

 

22.  Eskandari-Ghadi, M., Xi, Y., and Sture, S. (2014) “Cross-Property Relations Between Mechanical and Transport Properties of Composite Materials”, Technical note in J. of Engineering Mechanics. ASCE, 140(7), 06014006.

 

23.    Liang, Y., Ye, Z., Vernerey, F., and Xi, Y. (2013). "Development of Processing Methods to Improve Strength of Concrete with 100% Recycled Coarse Aggregate." J. Mater. Civ. Eng., ASCE, 10.1061/(ASCE)MT.1943-5533.0000909 , 04014163.

 

24.  Meshgin, P., and Xi, Y. (2013) “Multi-scale Composite Models for Effective Thermal Conductivity of PCM-Concrete”, Construction and Building Materials, 48, 371-378.

 

25.  Eskandari-Ghadi, M., Zhang, W.P., Xi, Y., and Sture, S. (2013) “Modelling of Moisture Diffusivity of Concrete at Low Temperatures”, J. of Engineering Mechanics, ASCE, 139(7), 903-915.

 

26.  Kim, H.G., Lee, J.S., Cho, B.H., Kim, H.Y., and Xi, Y. (2013) “An Experimental Study on Fire Resistance of Medical Modular Block”, International Journal of Steel and Composite Structures, 15(1), 103-130.

 

27.  Damrongwiriyanupap, N., Li, L.Y., and Xi, Y. (2013) “Coupled Diffusion of Multi-Component Chemicals in Non-Saturated Concrete”, Computers and Concrete, 11(3), 201-222.

 

28.  Meshgin, P., Li, Y., and Xi, Y. (2012) “Utilization of Phase Change Materials and Rubber Particles to Improve Thermal and Mechanical Properties of Mortar”, Construction & Building Materials, 28, 713-721.

 

29.  Meshgin, P., and Xi, Y. (2012) “The Effects of Phase Change Materials on Properties of Concrete”, ACI Material J., 109(1), 71-80.

 

30.  Damrongwiriyanupap, N., Li, L.Y., and Xi, Y. (2011) “Coupled Diffusion of Chloride and Other Ions in Saturated Concrete”, Journal of Frontiers of Architecture and Civil Engineering in China, 5(3), 267–277.

 

31.  Damrongwiriyanupap, N., Liang, Y.C., Xi, Y. (2011) “Diffusion of Multi-Ionic Species in Recycled Aggregate Concrete”, Key Engineering Materials, 477, 56-64.

 

32.  Li, L.Y., Damrongwiriyanupap, N., and Xi, Y. (2011) “A Probabilistic Prediction Model for the Corrosion Initiation Time of Steel Reinforcement in Concrete Structures”, International Journal of Modelling, Identification and Control, 14(1/2), 112-120.

 

33.  Li, Y., Yan, Q., Xi, Y., and Meshgin, P. (2011) “Properties of Premixed Rubberized Insulation Mortar”, New Building Materials, 2, 43-45 (in Chinese).

 

34.  Apipattanavis, S., Molenaar, K.R., Rajagopalan, B., Xi, Y., Sabol, K.K., Blackard, B. Patil, S. (2010) “An Integrated Framework for Quantifying and Predicting Weather Related Highway Construction Delays, Journal of Construction Engineering and Management, ASCE, Nov., 1160-1168.

 

35.  Lee, J.S., Xi, Y., Willam, K., and Jung, Y. (2009) “A Multiscale Model for Modulus of Elasticity of Concrete at High Temperatures”, Cement and Concrete Research, 39, 754–762.

 

36.  Lee, J.S., Xi, Y., and Willam, K. (2008) “Properties of Concrete after High Temperature Heating and Cooling”, J. of Materials, ACI, July-Aug. 105(4), 334-341.

 

37.  Suwito, A., and Xi, Y. (2008) “The Effect of Chloride-Induced Steel Corrosion on Service Life of Reinforced Concrete Structures”, Structure & Infrastructure Engineering, 4(3), June 2008, 177 – 192.

 

38.  Koller, R., Chang, S.Y., and Xi, Y. (2007) “Fiber Reinforced Polymer Bars under Freeze-Thaw Cycles and Different Loading Rates”, Journal of Composite Materials, 41(1), 5-25.

 

39.  Suwito, A., Ababneh, A., Xi, Y., and Willam, K. (2006) “The Coupling Effect of Drying Shrinkage and Moisture Diffusion in Concrete”, Computers & Concrete, 3(2-3), 103-122.

 

40.  Suwito, Cai, X.-C., and Xi, Y. (2006) “Parallel Finite Element Method for Coupled Chloride Penetration and Moisture Diffusion in Concrete”, International Journal of Numerical Analysis and Modeling, 3(4), 481-503.

 

41.  Xi, Y., Eskandari-Ghadi, M., Suwito, and Sture. S. (2006) “A Damage Theory Based on Composite Mechanics”, J. of Eng. Mech., ASCE, 132(11), 1-10.

 

42.  Li, Y., and Xi, Y. (2006) “Study on the Properties of Portland Cement Mortar and Concrete Containing Crumb Rubber Aggregate”, Concrete, 200, 45-48 (in Chinese).

 

43.  Li, Y., Jin, C., and Xi, Y. (2006) “The Properties of Sulfur Rubber Concrete (SRC)”, J. of Wuhan Univ. of Tech. (Mater. Sci. Ed.), 21(1), 129-133.

 

44.  Chang, K.K., Roh, Y.S., and Xi, Y. (2006) “A Fractal Fracture Model and Application to Concrete with Different Aggregate Sizes and Loading Rates”, Structural Engineering and Mechanics, 23(2), 147-161.

 

45.  Li, Y., Lee, J.S., and Xi, Y. (2005) "Study on Sulfur Rubber Concrete", J. of Building Materials, 8(4), 368-372 (in Chinese).

 

46.  Xi, Y. and Nakhi, A. (2005) “Composite Damage Models for Diffusivity of Distressed Materials”, J. of Materials in Civil Engineering, ASCE, May/June, 17(3), 286-295.

 

47.  Willam, K., Rhee, I., and Xi, Y. (2005) “Thermal Degradation in Heterogeneous Concrete Materials”, J. of Materials in Civil Engineering, ASCE, May/June, 17(3), 276-285.

 

48.  Asiz, A., Zhang, W., and Xi, Y. (2003) “Analysis of Aging of Piezoelectric Crystal Resonators”, IEEE Transactions on Ultrasonic, Ferroelectric, and Frequency Control (IEEE-UFFC), 50(12), 1647- 1655.

49.  Roh, Y.S., Asiz, A., Zhang, W.P., and Xi, Y. (2003) “Experimental Study and Theoretical Prediction of Aging Induced Frequency Shift of Crystal Resonators and Oscillators”, Microelectronics Reliability, 43(12), 1993-2000.

 

50.  Xie, Z.H., Wen, X., and Xi, Y. (2003) “ASR Potentials of Glass Aggregates in Water-Glass Activated Fly Ash and Portland Cement Mortars”, Journal of Materials in Civil Engineering, ASCE, 15(1), 67-74.

 

51.  Ababneh, A., Farid Benboudjema, and Xi, Y. (2003) “Chloride Penetration in Non-Saturated Concrete”, J. of Materials in Civil Engineering, ASCE, 15(2), 183-191.

 

52.  Xie, Z.H., and Xi, Y. (2002) “Use of Recycled Glass as a Raw Material in the Manufacture of Portland Cement”,  Materials and Structures, RILEM, Sept. – Oct., 510-515.

 

53.  Ababneh, A., and Xi, Y. (2002) “An Experimental Study on the Effect of Chloride Penetration on Moisture Diffusion in concrete”, Materials and Structures, RILEM, 35(254), 659-664.

 

54.  Kong, J., Ababneh, A., Frangopol, D.M., and Xi, Y. (2002) “Reliability Analysis of Chloride Penetration in Saturated Concrete ”, Probabilistic Engineering Mechanics, 17, 305-315.

 

55.  Suwito, A., Jin, W., Xi, Y., and Meyer, C. (2002) "A Mathematical Model for the Pessimum Effect of ASR in Concrete", Concrete Science and Engineering, RILEM, 4, 23-34.

 

56.  Xie, Z., and Xi, Y. (2001) “Hardening Mechanisms of An Alkaline Activated Class-F Fly Ash”, Cement and Concrete Research, 31, 1245-1249.

 

57.  Amparano, F.E., Xi, Y., and Roh, Y.S. (2000) “Experimental Study on the Effect of Aggregate Content on Fracture Behavior of Concrete”, Engineering Fracture Mechanics, 67, 65-84.

 

58.  Xi, Y., Willam, K., and Frangopol, D. (2000) “Multiscale Modeling of Interactive Diffusion Processes of Concrete”, Journal of Engineering Mechanics, ASCE, 126(3), 258-265.

 

59.  Roh, Y.S., and Xi, Y. (2000) “A General Formulation for Transition Probabilities of Markov Model and the Application to Fracture of Composite Materials”, Probabilistic Engineering Mechanics, 15(3), 241-250.

 

60.  Meyer, C., and Xi, Y. (1999) “Use of Recycled Glass and Fly Ash for Precast Concrete”, Journal of Materials in Civil Engineering, ASCE, May, 11(2), 89-90.

 

61.  Xi, Y., and Bazant, Z.P. (1999) “Modeling Chloride Penetration in Saturated Concrete”, Journal of Materials in Civil Engineering, ASCE, 11(1), 58-65.

 

62.  Amparano, F.E., and Xi, Y. (1998) “Pumpability of Nonsand Concrete with Anti-Segregative Additives”, ACI Materials Journal, 95(6), 695-703.

 

63.  Tennis, P., Jennings, H.M., and Xi, Y. (1997) "Mathematical Modeling of Cement Paste Microstructure by Mosaic Pattern, Part II - Application to Cement Paste", Journal of Materials Research, 12(7), 1741-1749.

 

64.  Xi, Y., and Bazant, Z.P. (1997) “Random Growth of Crack with R-curve: Markov Process Model”, Engineering Fracture Mechanics, 57(6), 593-608.

 

65.  Neubauer, C.M., Bergstrom, T.B., Sujata, K., Xi, Y., Garboczi, E.J., and Jennings, H.M. (1997) “Drying Shrinkage of Cement Paste as Measured in an ESEM and Comparison with  Microstructural Models”, Journal of Materials Science, 32, 6415-6427.

 

66.  Xi, Y., and Jennings, H.M. (1997) "Shrinkage of Cement Paste and Concrete Modeled by a Multiscale Effective Homogeneous Theory", Materials and Structures (RILEM), 30, July, 329-339.

 

67.  Xi, Y. (1996) "Analysis of Internal Structures of Composite Materials by Second Order Property of Mosaic Patterns", Materials Characterization, Jan., 11-25.

 

68.  Xi, Y. (1996) "Representative Volumes of Composite Materials", Journal of Engineering Mechanics, ASCE, 122(12), 1159-1167.

 

69.  Xi, Y., Jennings, H.M., and Tennis, P. (1996) "Mathematical Modeling of Cement Paste Microstructure by Mosaic Pattern, Part I: Theory", Journal of Materials Research, 11(8), 1943-­1952.

 

70.  Bazant, Z.P., and Xi, Y. (1995) "Continuous Retardation Spectrum for Solidification Theory of Concrete Creep", Journal of Engineering Mechanics, ASCE , 121(2), 281-288.

 

71.  Xi, Y. (1995) "A Model for Moisture Capacities of Composite Materials - Formulation", Computational Materials Science, 4, 65-77.

 

72.  Xi, Y. (1995) "A Model for Moisture Capacities of Composite Materials - Application to Concrete", Computational Materials Science, 4, 78-92.

 

73.  Xi, Y., Bazant, Z.P., and Jennings, H.M. (1994) "Moisture Diffusion in Cementitious Materials: Adsorption Isotherm", Journal of Advanced Cement-Based Materials, 1, 248-257.

 

74.  Xi, Y., Bazant, Z.P., and Jennings, H.M. (1994) "Moisture Diffusion in Cementitious Materials: Moisture Capacity and Diffusivity", Journal of Advanced Cement-Based Materials, 1, 258­-266.

 

75.  Bazant, Z.P., and Xi, Y. (1994) "Drying Creep of Concrete: Constitutive Model and New Experiments Separating its Mechanisms", Materials and Structures (RILEM), 27, 3-14.

 

76.  Xi, Y., Bergstrom, T.B., and Jennings, H.M. (1994) "Image Intensity Matching Technique: Application to the Environmental Scanning Electron Microscope", Computational Materials Science, 2, 249-260.

 

77.  Bazant, Z.P., Xi, Y., and Baweja, S. (1993) "Improved Prediction Model for Time ­Dependent Deformation of Concrete, Part  VII: Short Form of BP-KX Model, Statistics and Extrapolation of Short-Time Data", Materials and Construction, (RILEM), 26, 567-574.

 

78.  Bazant, Z.P., and Xi, Y. (1993) "Stochastic Drying and Creep Effects in Concrete Structures", Journal of Structural Engineering, ASCE, 119(1), 301-322.

 

79.  Bazant, Z.P., Panula, L., Kim, J.K., and Xi, Y. (1992) "Improved Prediction Model for Time-Dependent Deformation of Concrete, Part VI: Simplified Code-Type Formulation", Materials and Construction, (RILEM), 25, 219-223.

 

80.  Bazant, Z.P., Xi, Y., and Reid, S.G. (1991) "Statistical Size Effect in Quasibrittle Structures: I. Is Weibull Theory Applicable ?", Journal of Engineering Mechanics, ASCE, 117(11), 2609-2622.

 

81.  Bazant, Z.P., and Xi, Y. (1991) "Statistical Size Effect in Quasibrittle Structures: II. Nonlocal Theory", Journal of Engineering Mechanics, ASCE, 117(11), 2623-2640.

 

82.  Xi, Y., and Bazant, Z.P. (1989) "Sampling Analysis of Concrete Structures for Creep and Shrinkage with Correlated Random Material Parameters", Probabilistic Engineering Mechanics, 4(4), 174-186.

 

Book and Book Chapter

 

1.      Li, Z.J., Leung, C., and Xi, Y. (2009) Structural Renovation in Concrete, Taylor & Francis, London, 356p.

 

2.      Willam, K., Xi, Y., and Naus, D. (2013) “Concrete under High Temperature”, Chapter 26 of Infrastructure systems for Nuclear Energy, Editors: Thomas T. C. Hsu, Jui-Liang Lin, and Chiun-lin Wu, Publisher: Wiley.

 

Refereed Conference Papers

 

1.      Damrongwiriyanupap, N., and Xi, Y. (2012) "A Chemo-Hygro-Thermal Coupled Model for Multi-Ionic Species Diffusion in Marine Concrete Structures", Proc. of 5th International Conference of Asian Concrete Federation (ACF), Oct. 24-26, 2012, Pattaya, Thailand.

 

2.      Xi, Y., and Willam, K., (2012) "Nuclear Radiation Effects on Properties of Concrete", Proc. of 2012 Joint Conference of the Engineering Mechanics Institute and the 11th ASCE Joint Specialty Conference on Probabilistic Mechanics and Structural Reliability June 17-20 2012, Notre Dame, IN.

 

3.      Damrongwiriyanupap, N., Liang, Y.C., and Xi, Y. (2012) "Multiscale Modeling of Multi-Ionic Transport Process in Recycled Aggregate Concrete", Proc. of 2012 Joint Conference of the Engineering Mechanics Institute and the 11th ASCE Joint Specialty Conference on Probabilistic Mechanics and Structural Reliability June 17-20, 2012, Notre Dame, IN.

 

4.      Vernerey, F., and Xi, Y. (2011) “An XFEM-level set method for the mechanics of interfaces in nano-composites”, Proc. of NSF CMMI Conference (available in CD), held in Atlanta, Georgia, Jan. 4, 2011.

 

5.      Willam, K., and Xi, Y. (2010) “Hygro-Thermal Spalling of Concrete”, Research Group Profile, Engineering Mechanics Institute, ASCE.

 

6.      Xi, Y., Li, L.Y., and Damrongwiriyanupap, N. (2009) “Chloride Penetration and Moisture Diffusion in Concrete Structures”, Proc. of NSF CMMI Conference (available in CD), held in Hawaii, June 22, 2009.

 

7.      Willam, K., Lee, K.K., Xi, Y., and Lee, J.S. (2008) "Spalling of Concrete due to Combined Heating and Drying”, Creep, Shrinkage and Durability of Concrete and Concrete Structures, Proc. of CONCREEP8, Tanabe Tada-aki et al. Eds, 2, 1013-1019, CRC Press.

 

8.      Lee, J.S., Xi, Y., and Willam, K. (2008) “Coupling Effect between Temperature and Moisture on the Deformation of Concrete”,  Creep, Shrinkage and Durability of Concrete and Concrete Structures, Proc. of CONCREEP8, Tanabe Tada-aki et al. Eds, 2, 257 – 260, CRC Press.

 

9.      Y. Xi, A. Ababneh, L. Arrar, Suwito, and X.-C. Cai (2007) “Experimental Studies and Parallel Computing on Coupled Moisture and Chloride Diffusion in Concrete”, Transport Properties and Concrete Quality – Material Science of Concrete, Special volume, Barzin Mobasher and Jan Skalny, Editors, Proc. of the Transport Properties and Concrete Quality Workshop, held in Arizona State University, Tempe, AZ., The American Ceramic Society, 41-56.

 

10.  Edward, E., Xi, Y., and Corotis, R. (2007) "The Effect of Rice Husk Ash on Mechanical Properties of Concrete under High Temperatures", Proc. of 18th Engrg. Mech. Conf., held in Blacksburg, Virginia.

 

11.  Ou, E., Xi, Y., and Corotis, R.(2007) "Sustainable Infrastructure Development of Guizhou Province in Southwest China: A Life Cycle Assessment of Approach", Int. Conf. on the Applications of Probability and Statistics in Civil Engineering, ICASP10, Tokyo, Japan, July 2007.

 

12.  Lee, J., Xi, Y., and Willam, K. (2007) "Strength and Stiffness of Concrete under Heating and Cooling Treatments", Proc. of FraMCos6, A. Carpinteri, P. Gambarova, G. Ferro, and G. Plizarri, Editors, Vol. 2, 1709-1714.

 

13.  Ababneh, A.N., and Xi, Y. (2006) "Evaluation of Environmental Degradation of Concrete in Cold Regions", Proc. of 2006 Cold Regions Conference, 10-pages, Conf. CD.

 

14.  Willam, K., Basche, H., Lee, K. and Xi, Y. (2006) "Assessment of RC Bond under Severe Temperatures", Proc. Euro-C 2006, March 27-30, 2006, Mayrhofen Tyrol Austria, Computational Modelling of Concrete Structures, G. Meschke, R. de Borst, H. Mang, and N. Bicanic (eds.), Taylor \& Francis Group, London, 647-656.

 

15.  Willam, K., Lee, K., Lee, J. and Xi, Y. (2006) "Issues of Thermal Collapse Analysis of RCS", Structures Congress of ASCE, May 18-20, 2006, St. Louis MI, 10-page electronic paper, Conf. CD.

 

16.  Willam, K., Lee, K., and Xi, Y. (2005) “Issues of Reinforced Concrete Structures under Extreme Temperature Events”, Proceedings of the 5 International Conference on Computation of Shell and Spatial Structures, E. Ramm, W. A. Wall, K.-U. Bletzinger, M. Bischo (eds.), June 1-4, 2005, Salzburg, Austria, 239-242.

 

17.  Ababneh, A., Sheban, M., Suwito, A., and Y. Xi (2005) “The Coupling Effect of Drying Shrinkage and Moisture Diffusion in Concrete”, Proc. of Concreep 7, Sept. 12, Nantes, France.

 

18.  Willam, K., Basche, H.D., and Xi, Y. (2005) “Constitutive aspects of high temperature material models”, fib-Workshop, Task Group 4.3.2, Fire Design of Concrete Structures, Politecnico di Milano, Dec. 2-4, 2004, 121-129.

 

19.  Xi, Y., Li, Y., Xie, Z.H., and Lee, J.S. (2004) “Utilization of Solid Wastes (Waste Glass and Rubber Particles) As Aggregates in Concrete”, Proc. of International Workshop on Sustainable Development and Concrete Technology, May 20-21, Beijing, China, 45-54.

 

20.  Suwito, A., and Xi, Y. (2004) “Service Life of Reinforced Concrete Structures with Corrosion Damage due to Chloride Attack”, Life-Cycle Performance of Deteriorating Structures: Assessment, Design and Management, Special Publication of ASCE, Eds., D.M. Frangopol, E. Bruhwiler, M.H. Faber, and B. Adey, 207-218.

 

21.  Eskandari-Ghadi, M., Xi, Y., and Sture, S. (2004) “Composite Damage Mechanics And Applications to Modeling of Degradation of Concrete”, Fracture Mechanics of Concrete Structures, Proc. of FRAMCOS-5, V.C. Li, C.K.Y. Leung, K.J. Willam, and S.L. Billington, Editors, April, 12, Vail, Colorado, 263-269.

 

22.  Eskandari-Ghadi, M., Xi, Y., and Sture, S. (2004) “The effect of heat source on upper and lower bounds of effective conductivity of anisotropic composites”, Fracture Mechanics of Concrete Structures, Proc. of FRAMCOS-5, V.C. Li, C.K.Y. Leung, K.J. Willam, and S.L. Billington, Editors, April, 12, Vail, Colorado, 507-512.

 

23.  Ababneh, A., and Xi, Y. (2003) “A New Testing Method for Determining the Coupling Effect of Chloride Diffusion on Moisture Transfer in Concrete”, Proc. of Advances in Cement and Concrete IX: Volume Changes, Crackign and Durability, August 10, Copper Mountain, Colorado, 133-140.

 

24.  Willam, K., Rhee, I, and Xi, Y. (2003) “Thermal Degradation in Heterogeneous Concrete Materials”, Computational Modelling of Concrete Structures (Proc. of EURO-C 2003, St. Johann im Pongau, Austria, March 17-20, 2003), Editors: N. Bicanic, R. deBorst, H. Mang, and G. Meschke; A.A. Balkema Publishers, Lisse, 569-579.

 

25.  Roh, Y.S., and Xi, Y. (2001) “The Fracture Surface Roughness of Concrete with Different Aggregate Sizes and Loading Rates”, ACI Special Publication, SP 201 - Fracture Mechanics for Concrete Materials: Testing and Applications, 35-54.

 

26.  Xi, Y., Willam, K., Frangopol, D.M., Ababneh, A., Nakhi, A., Kong, J.S., and Nogueira, C.L. (2001) “Accelerated Testing and Modeling of Concrete Durability under Coupled Environmental and Mechanical Loadings”, Long Term Durability of Structural Materials, Proc. of The NSF Durability Workshop at University of California at Berkeley, Oct., Editors, P.J.M. Monteiro, K.P. chong, J. Larsen-Basse, and K. Komvopoulos, 45-56.

 

27.  Ababneh, A., Xi, Y., and Willam, K. (2001) “Multiscale Modeling of the Coupled Moisture Diffusion and Drying Shrinkage of Concrete”, The Proc. of Concreep-6, MIT, in Creep, Shrinkage and Durability Mechanics of Concrete and Other Quasi-Brittle Materials, Eds. F.-J. Ulm, Z.P. Bazant, and F.H. Wittmann, Elsevier Science Ltd., 159-164.

 

28.  Kong, J.S., Akgul, F., Frangopol, D.M., and Xi, Y. (2001) “Probabilistic Models for Predicting the Failure Time of Deteriorating Structural Systems”, Computational Fluid and Solid Mechanics, Proc. of the 1st MIT Conf. on Computational Fluid and Solid Mechanics, Editor, K.J. Bathe, July 12-15, Elsevier, Amsterdam, 290-293.

 

29.  Nakhi, A., Xie, Z.H., Asiz, A., Ababneh, A., and Xi. Y. (2000) “Experimental Study on Chloride Penetration under Coupled Hygromechnical Loadings”, Special Publication of ASCE “Condition Monitoring of Materials and Structures”, F. Ansari, Editor, 84-94.

 

30.  Ababneh, A., Suwito, A., Xi, Y., and Abu-Hejleh, N. (2000) “A Comparative Study on Durability of Type IP and Silica Fume Concretes”, High Performance Concrete – Workability, Strength and Durability, Proc. of the Int. Sym., Editors, Leung, C., Li, Z., and Ding, J.T., Dec., Hong Kong, 273-279.

 

31.  Xi, Y., and Ababneh, A. (2000) “Prediction of the Onset of Steel Corrosion in Concrete by Multiscale Chloride Diffusion”, High Performance Concrete – Workability, Strength and Durability, Proc. of the Int. Sym., Editors, Leugn, C., Li, Z., and Ding, J.T., Dec., Hong Kong, 181-186.

 

32.  Gharaibeh, E.S., Hanai, T., Xi, Y., and Frangopol, D.M. (2000) “Effects of Uncertainties on Chloride Penetration in Saturated Concrete”, Proc. of Probablistic Mechanics Conference 2000 (PMC2000), July, Notre Dame, 241-244.

 

33.  Jin, W., Suwito, A., Meyer, C., and Xi, Y. (1998) "Theoretical Modeling on Expansion and Damage due to Alkali-Silica Reaction", Proceedings of 12th Engineering Mechanics Conference: Engineering Mechanics: A Force for the 21st Century, May 18-20, San Diego, CA., 1175-1178.

 

34.  Roh, Y.S., and Xi, Y. (1998) " A New Formulation of Markov chain model and Application to Fracture Analysis ", Proceedings of 12th Engineering Mechanics Conference: Engineering Mechanics: A Force for the 21st Century, May 18-20, San Diego, CA., 1497-1500.

 

35.  Xi, Y., Roh, Y.S., and Summers, J. (1998) "Non-destructive Testing for Fatigue Life of SMAs", Proceedings of 12th Engineering Mechanics Conference: Engineering Mechanics: A Force for the 21st Century, May 18-20, San Diego, CA., 1074-1077.

 

36.  Xi, Y. (1998) "Relationship among Grain Size, Fracture Process Zone and Size Effect of Concrete", Computational Modeling of Concrete Structures, Proceedings of EURO-C, March 31 - April 3, Badgastein, Austria, Editors, R. de Borst, N. Bicanic, H. Mang, and C. Meschke, Published by A.A. Balkema, Rotterdam, the Netherlands, 275-283.

 

37.  Xi, Y. (1998) " Minimum Size of Concrete Specimens for Linear Elastic Fracture Analysis", Fracture Mechanics of Concrete Structures, Vol. 3, Proceedings of FRAMCOS-3, Oct. 12-16, Gifu, Japan, Editors, H. Mihashi and K. Rokugo, Aedificatio Publishers, Immentalstr, Germany, 2021-2030.

 

38.  Xi, Y., Suwito, A., Wen, X., Meyer, C., and Jin, W. (1998) "Testing and Modeling Alkali-Silica Reaction and the Associated Expansion of Concrete", Mechanics of Quasi-Brittle Materials and Structures, Proceedings of Int. Workshop in honor of Prof. Z.P. Bazant 60 birthday, March 27-28, Prague, Czech Republic, Hermes Science Publications, Paris, 217-232.

 

39.  Xi, Y. (1998) "Discussion on ‘Durability Mechanics II’, Mechanics of Quasi-Brittle Materials and Structures, Proceedings of Int. Workshop in honor of Prof. Z.P. Bazant 60 birthday, March 27-28, Prague, Czech Republic, Hermes Science Publications, Paris, 435-440.

 

40.  Silverstrim, T., Rostami, H., Xi, Y., and Martin, J. (1997) "High Performance Characteristics of Chemically Activated Fly Ash (CAFA)", Proceedings of the PCI/FHWA Int. Sym. On High Performance Concrete, New Orleans, Louisiana, Oct. 20-22, 135-147.

 

41.  Xi, Y. (1997) "Mathematical Modeling of Chloride Penetration in Concrete", in Mechanisms of Chemical Degradation of Cement-Based Materials, Edited by K.L. Scrivener and J.F. Young, E&FN Spon, London, United Kingdom, 397-404.

 

42.  Xi, Y. (1996) "Representative Volumes of Composite Materials", Proc. of 11th Engineering Mechanics Specialty Conf. of ASCE, May, Fort Lauderdale, FL, 735-738.

 

43.  Xi, Y., and Amparano, F.E. (1996) "Effect of Aggregates on Fracture Process Zone of Concrete", Proc. of 11th Engineering Mechanics Specialty Conf. of ASCE, May, Fort Lauderdale, FL, 1185-1188.

 

44.  Jennings, H.M., Xi, Y., Bazant, Z.P., and Yang, M. (1996) "Constitutive Characterization of Cementitious Materials based on Microstructural Models", Proc. of NATO/RILEM workshop on the Modeling of Microstructure and its Potential for Studying Transport Properties and Durability, St. Remy-les-Chevreuse, France, July 10-13, 1994, 187-226.

 

45.  Xi, Y., and Bazant, Z.P. (1996) "Analysis Crack Propagation in Concrete Structures by Markov Chain Model and R-curve Method", Proc. of ASCE Specialty Conf. on Probabilistic Mechanics and Structural Reliability, Worcester, MA., Aug., 358-361.

 

46.  Sujata, K., Xi, Y., and Jennings, H.M. (1996) "Interfacial Shrinkage in Mortars", in Materials for the New Millennium, Proc. of 4th Materials Engineering Conference, Nov. 10-14, Washington, D.C., 1669-1676.

 

47.  Xi, Y. (1995) "Characterization of Moisture Diffusion in Concrete Based on Microstructural and Composite Models", Proc. of 10th Engineering Mechanics Specialty Conf. of ASCE, May, Boulder, Colorado, 1163-1166.

 

48.  Bazant, Z.P., Xi, Y., and Baweja, S. (1995) "Solidafication Theory and Mechanisms of Aging Creep of Concrete", Proc. of 10th Engineering Mechanics Specialty Conf. of ASCE, May, Boulder, Colorado, 1372-1375.

 

49.  Cheyrezy, M., and Xi, Y. et al. (1995) "Specific Production Manufacturing Issues" Chapter 2 in Proc. of 2nd Int. Workshop on High Performance Fiber Reinforced Cement Composite, June, Ann Arbor, Michigan, 25-42.

 

50.  Xi, Y. (1995) "Representative Volume of Cementitious Materials", Proc. of 2nd Int. Conf. on Fracture Mechanics of Concrete and Concrete Structures, July, Zurich, Switzerland, 635-644.

 

51.  Xi, Y. (1995) "A Composite Model for Moisture Capacities of Concrete", Proc. Of Int. Conf. on Concrete under Severe Conditions - Environment and Loading, August, Sapporo, Japan., 453-462.

 

52.  Li, Z., and Xi, Y. (1995) “Application of Acoustic Emisson Technique to Detection of Concrete Cracking and Rebar Corrosion”, Proc. of Int. Sym. On Non-Destructive Testing in Civil Engineering (NDT-CE), Sept. 26-28, 613-620.

 

53.  Bazant, Z.P., and Xi, Y. (1994) "Fracture of Random Quasibrittle Materials: Markov Process and Weibull-Type Models", Proc. of ICOSSAR, 93', Structural Safety & Reliability, Schueller, Shinozuka, & Yao (eds), Balkema, Rotterdam, 1, 609-614.

 

54.  Xi, Y. (1994) "Simulation of Multiphase Spatial Distributions with Application to Fracture of Concrete", Proc. of Europe-U.S. Workshop on Fracture and Damage in Quasibrittle Structures: Experiment, Modeling and Computer Analysis, Prague, Sept., E & FN SPON, 501­-510.

 

55.  Bazant, Z.P., Xi, Y., and Baweja, S. (1993) "Preliminary Guidelines and Recommendation for Characterizing Creep and Shrinkage in Structural Design Codes", Creep and Shrinkage of Concrete, Proc. of the 5th Int. Symp. on Creep and Shrinkage of Concrete, Barcelona, Spain, Sept., 805-829.

 

56.  Xi, Y., and Bazant, Z.P. (1993) "Continuous Retardation Spectrum for Solidification Theory of Concrete Creep", Creep and Shrinkage of Concrete, Proc. of the 5th Int. Symp. on Creep and Shrinkage of Concrete, Barcelona, Spain, Sept., 225-230.

 

57.  Xi, Y., and Bazant, Z.P. (1993) "Improved Pore Water Diffusion Model for Creep Analysis of Concrete Structures", Creep and Shrinkage of Concrete, Proc. of the 5th Int. Symp. on Creep and Shrinkage of Concrete, Barcelona, Spain, Sept. 169-174.

 

58.  Bazant, Z.P., and Xi, Y. (1993) "New Test Method to Separate Microcracking from Drying Creep: Curvature Creep at Equal Bending Moments and Various Axial Forces", Creep and Shrinkage of Concrete, Proc. of the 5th Int. Symp. on Creep and Shrinkage of Concrete, Barcelona, Spain, Sept., 77-82.

 

59.  Jennings, H.M., and Xi, Y. (1992) "Relationships Between Microstructure and Creep and Shrinkage of Cement Paste", Material Science of Concrete, III, Ed. J. Skalny, The Amer. Cer. Soc., Westerville, OH, 37-69.

 

60.  Jennings, H.M., and Xi, Y. (1992) "Cement-Aggregate Compatibility and Structure Property Relationship Including Modeling", Proc. of the 9th Int. Congress on Chemistry of Cement, New Delhi, India, Dec., 1, 663-691.

 

61.  Bazant, Z.P., and Xi, Y. (1992) "Size Effect in Quasibrittle Micro-heterogeneous Structures: Deterministic and Statistical  Theories", Applications of Fracture Mechanics to Reinforced Concrete, Ed. A. Carpinteri, Elsevier Applied Science, London, 1-16.

 

62.  Bazant, Z.P., and Xi, Y. (1990) "Combined Spectral and Sampling Approach for Probabilistic Prediction of Creep and Shrinkage Effects in Concrete Structures", Materials Research in Concrete, Karlsruhe, May, 249-267.

 

Project Reports

 

1.      Willam, K., Xi, Y., and Naus, D. (2013) “A Review of the Effects of Radiation on Microstructure and Properties of Concrete Used in Nuclear Power Plants”, NUREG/CR-7171, Office of Nuclear Regulatory Research, U.S. Nuclear Regulatory Commission, and ORNL/TM-2013/263, 131p.

 

2.      Damrongwiriyanupap, N., Liang, Y.C., and Xi, Y. (2012) Application of Roller Compacted Concrete (RCC) in Colorado’s Roadways, Colorado DOT Report No. CDOT-2012-11, 60p.

 

3.      Xi, Y., Meshgin, P., Na, O., and Li, Y. (2010) “Premixed Rubberized Insulation Mortar”, A Technical Report to CDPHE, 66p., http://www.cdphe.state.co.us/oeis/p2_program/atgfinalrpts.html.

 

4.      Liang, Y.C., Zhang, W.P., and Xi, Y. (2010) “Strategic Evaluation of Different Topical Protection Systems for Bridge Decks and the Associated Life-Cycle Cost Analysis”, Colorado DOT Report No. CDOT-2010-6, 61p.  

 

5.      Willam, K., Xi, Y., Lee, K., and Kim, B. (2009) “Thermal Response of Reinforced Concrete Structures in Nuclear Power Plants”, University of Colorado at Boulder, SESM Report No. 02-2009: Report to Oak Ridge National Laboratory, 210p.

 

6.      Xi, Y., Balaji, R., and Molenaar, K. (2008) "Quantifying Construction Delays Due to Weather", Research report FHWA-CFL/TD-07-001.

 

7.      Hearn, G., and Xi, Y. (2007) "Service Life and Cost Comparisons for Four Types of CDOT Bridge Decks", Colorado DOT Report No. CDOT-2007-2, 118p.

 

8.      Basche. H.D., Willam, K., and Xi, Y. (2005) “Uncoupled Transient Thermo-Elastic Stress Analysis”, Internal Report CU/SESM-2005/002, University of Colorado at Boulder.

 

9.      Willam, K., Xi, Y., Lee, K., and Lee, J.S. (2005) “Thermoelastoplastic Damage Analysis of RCS Subjected to Fire Scenarios”, Report to Sandia National Lab, University of Colorado at Boulder, 105p.

 

10.  Fafach, D., Shing, B., Chang, S.Y., and Xi, Y. (2005) “Evaluation of the FRP-Retrofitted Arches in the Castlewood Canyon Bridge”, Colorado DOT Report No. CDOT-DTD-R-2005-01, 245p.

 

11.  Xi, Y., Chang, S.Y., Asiz, A., and Li, Y. (2004) “Long-Term Durability of Fiber-Reinforced Polymer (FRPs) and in-situ Monitoring of FRP Bridge Decks at O’Fallon Park Bridge”, Colorado DOT Report No. CDOT-DTD-R-2004-3, 60p.

 

12.  Xi, Y., Abu-Hejleh, N., Asiz, A., and Suwito (2004) “Performance Evaluation of Various Corrosion Protection Systems of Bridges in Colorado”, Colorado DOT Report No. CDOT-DTD-R-2004-1, 141p.

 

13.  Willam, K., Xi, Y., Lee, K., Lee, J.S., and Basche, H.D. (2004) “Literature Review of Concrete and Concrete Structures Subjected to High Temperature”, Internal Report CU/SESM-2005/001 University of Colorado at Boulder, and Report to Sandia National Lab, 98p.

 

14.  Xi, Y., and Li, Y. (2004) “Materials, Testing Methods, and Construction Practices for Fast Concrete Deck Repair”, Internal Report CU/SESM/XI-2004/001 University of Colorado at Boulder, and Report to Colorado DOT, 95p.

 

15.  Saouma, V., and Xi, Y. (2004) “Literature Review of Alkali Aggregate Reactions in Concrete Dams”, Project report to Swiss Federal Office for Water and Geology FOWG, 78p.

 

16.  Xi, Y., Shing, B., Abu-Hejleh, N., Asiz, A., Suwito, A., Xie, Z.H., Ababneh, A. (2003) “Assessment of the Cracking Problem in Newly Constructed Bridge Decks in Colorado”, Colorado DOT Report No. CDOT-DTD-R-2003-3, 136p.

 

17.  Xi, Y., Li, Y., and Li, Z.J. (2003) “High Toughness of Rubber-Modified Concrete (RMC)”, Final Report CU/SR-XI-2003/002 to The Colorado Commission of Higher Education, 63p.

 

18.  Cusson, R., and Xi, Y. (2003) “The Behavior of Fiber-Reinforced Polymer Reinforcement in Low Temperature Environment Climates”, Colorado DOT Report No. CDOT -DTD-R-2003-4, 107p.

 

19.  Shing, B., and Xi, Y. (2003) Studies on the Use of High Performance Concrete and FRP Reinforcement for the I-225/Parker Road Bridge”, Colorado DOT Report No. CDOT-DTD-R-2003-13, 86p.

 

20.  Xi, Y., and Xie, Z.H. (2002) “Corrosion Effects of Magnesium Chloride and Sodium Chloride on Automobile Components”, Colorado DOT Report No. CDOT-DTD-R-2002-04, 91p.

 

21.  Zylstra, R., Shing, B., and Xi, Y. (2001) “Evaluation of PRP Prestressed Panels/Slabs for I-225/Parker Road Project”, Colorado DOT Report No. CDOT-DTD-R-2001-14, 149p.

 

22.  Xi, Y., Shing, B., and Xie, Z.H. (2001) “Development of Optimal Concrete Mix Designs for Bridge Decks”, Colorado DOT Report No. CDOT-DTD-R-2001-11, 60p.

 

Awards and Recognitions

 

2010 Kwang-Hua Chair Professor at Tongji University, China.

 

Recipient of 2010 Faculty Fellowship at University of Colorado at Boulder.

 

Research development award 2004.  Department of Civil, Environmental and Architectural Engineering, University of Colorado at Boulder. 

 

Young Researcher’s award for academic year 1998-1999.  Department of Civil, Environmental and Architectural Engineering, University of Colorado at Boulder. 

 

Faculty advisor for Drexel teams in American Concrete Institute (ACI) beam competition.  In 1993, First prize for the highest ultimate load was awarded to the Drexel team.  In 1994, First prize for the highest ultimate load was awarded to one of the Drexel teams.  First prize for the best prediction was awarded to another Drexel team.

 

Professional Activities

 

Committee chairs and directors

 

·         The administrator of Colorado Local Technical Assistance Program (sponsored by the U.S. Federal Highway Administration, Colorado Department of Transportation, and University of Colorado at Boulder)

·         The vice chair of Experimental Analysis and Instrumentation (EA&I) Committee, ASCE Engineering Mechanics Institute (EMI) (2012).

·         The chair of Experimental Analysis and Instrumentation (EA&I) Committee, ASCE Engineering Mechanics Institute (EMI) (2013-2014).

·         The past chair of Experimental Analysis and Instrumentation (EA&I) Committee, ASCE Engineering Mechanics Institute (EMI) (2015).

·         The chair of the committee on Properties of Materials, ASCE Engineering Mechanics Institute (EMI), 2003-2007.

 

Services at University of Colorado at Boulder

 

·         A member of First Level Review Committee of College of Engineering (2012 – 2015).

·         The executive committee member of Dept. of Civil, Environmental, and Architectual Engineering representing Structural Engineering and Structural Mechanics (SESM) Group (2005 – 2011).

·         The coordinator of Structural Engineering and Structural Mechanics Group in 2002 and 2003.

·         A member of the Curriculum Committee of CEAE in 1999 and 2000. 

·         A member of the Facility Committee of CEAE in 2001-2003, and 2011.

·         The seminar organizer of Structural Engineering and Structural Mechanics Group in 1999 and 2000.

·         A member of the search committee for the Structural Engineering and Structural Mechanics Group, 2008, 2009, 2011, 2012, 2013.

 

Associate editor, guest editor and editorial board member of journals

 

·         A member of Editorial Board of international journal Computers & Concrete.

·         A member of Editorial Advisory Board of international journal Magazine of Concrete Research (June, 2013 – June, 2017).

·         An member of Editorial Board of the Madridge Journal of Nanotechnology & Nanoscience (MJNN).

·         A member of Editorial Advisory Board of Journal of Building Structures (in Chinese).

·         An associate editor and a member of Editorial Board of Journal of Sustainable Cement Based Materials.

·         An associate editor and a member of Editorial Board of Journal of Engineering Mechanics, ASCE, 2003-2007.

·         A member of International Scientific Committee of FraMCoS.

·         A member of Advisory Board for International Association on Concrete Creep (IA-Concreep).

·         A member of Editorial Advisory Committee of an international journal “Concrete Science and Engineering” (RILEM, the journal was discontinued).

·         A member of the Internal Oversight Board for the NSF NEES center at CU (up to 2009).

·         An editor for the special issue of Journal of Materials for Civil Engineering (ASCE), dedicated to Model-Based Simulation on Durability of Materials and Structures (2005).

·         An editor for the special issue of Journal of Engineering Mechanics (ASCE), dedicated to durability mechanics (March 2000).

·         An editor for the special issue of Journal of Concrete Science and Engineering (RILEM), dedicated to durability mechanics (March 2002).

·         An editor of the proceedings of 8th Faculty Enhancement Workshop of ACBM, July 15-18, 2001, Boulder, Colorado.

 

 International Conferences and Workshops organized

 

·         A member of International Scientific Committee of 10th International Symposium on Innovation & Utilization of High-Performance Concrete, Sept. 16-18, 2014, Beijing, China.

·         A member of International Scientific Committee of the 5th BIOT Conference on Poromechanics (BIOT-5), July 10-12, 2013, Vienna, Austria.

·         A member of scientific committee for The 8th International Symposium on Cement & Concrete (ISCC2013), Nanjing, China.

·         A member of International Advisory Committee Member of 2011 World Congress on Advances in Structural Engineering and Mechanics, Seoul, Korea, Sept. 2011.

·         A member of International Scientific Committee of FraMCoS-7, Korea, 2010.

·         A Scientific Committee Members of Computational Technologies in Concrete Structures, held in Korea in 2009.

·         A Scientific Committee Members of 8th International Conference on Creep, Shrinkage and Durability of Concrete and Concrete Structures, held in Sept. 2008 in Japan.

·         A local organizer of FraMCoS-5 (The 5th Int. Conf. on Fracture Mechanics of Concrete and Structures), April 12-15, 2004, Vail, Colorado.

·         An organizer of NSF Workshop on Interface Problems in Cement-Based Materials, April 12-15, 2004, Vail, Colorado.

·         An organizer of FHWA and CDOT Symposium on Innovative Bridge Materials and Construction, April 22-23, 2004, Denver, Colorado.

·         The organizer and a co-chair of the NSF Workshop on Model-Based Simulation of Durability of Materials and Structures, July 4-7, 2002, Prague.

·         A co-chair of the ASTM Symposium of Electrochemical Techniques to Determine Corrosion-Related Properties of Concrete and of Metals in Concrete, Committees G01 (G01.14), C09 (C09.66), June 18, 2003, Denver, Colorado.

·         The local organizer of 8th Faculty Enhancement Workshop of ACBM, July 15-18, 2001, Boulder, Colorado.

·         A member of the International Scientific Committee of CONCREEP-6, 2001, MIT, Boston.

·         A member of the International Scientific Committee of CONCREEP-7, 2005, Nantes, France.

 

Member of NSF review panel, professional committees and organizations

 

·         A NSF review panelist for career proposals, Spet. 2003; SBIR proposals, March 2004; career proposals, Sept. 2004; BRIGE proposals, June 2013.

·         A member of the committee on poromechanics, ASCE/Engineering Mechanics Division.

·         A member of the committee on experimental analysis and instrumentation, ASCE/Engineering Mechanics Division.

·         A member of the committee 446 (Fracture Mechanics), American Concrete Institute.

·         A member of the committee TC107 (Creep and Shrinkage), International Union of Testing and Research Laboratories for Materials and Structures.

·         A member of the committee TC QFS (Size effect of quasibrittle fracture), International Union of Testing and Research Laboratories for Materials and Structures.

 

Principal Dissertation/Thesis Advisor for Graduate Students

 

Graduate students obtained academic and research positions after graduation (11)

 

A.N. Ababneh, Assistant Professor, Clarkson University, Potsdam, NY.

A. Asiz, Assistant professor, University of New Brunswick, Canada.

J. Richards, Lecturer (Captain), United States Military Academy, West Point, NY.

A. Nakhi, Assistant Professor, Kuwait University, Safat, Kuwait.

M. Ghadi, Assistant Professor, University of Science and Tchnology of Mazandaran, Iran.

Y.S. Roh, Associate Professor, Dankook University, South Korea.

Suwito, Researcher, King Saudi University, Saudi Arabia.

Jaesung Lee, Assistant professor, Hannam University, South Korea.

Nattapong Damrongwiriyanupap, Assistant Professor, University of Phayao, Thailand.

Pania Meshgin, Sandia National Laboratory, U.S.A.

Okpin Na, Senior Research Engineer, Hyundai Engineering & Construction Co., Ltd., South Korea

 

Ph.D. Students

 

1.   A. Samadi (1996, Drexel Univ.)

2.   Clark, Daniel (1997, Drexel Univ., transferred to another school)

3.   Y.S. Roh (2000)

4.   A.N. Ababneh (2002)

5.   A. Asiz (2002)

6.   A. Nakhi (2003)

7.   M. Gahdi (2004, S. Stein co-advisor)

8.   A. Suwito (2005)

9.   S.Y. Chang (2005, transferred to another school)

10. J.S. Lee (2006)

11. E. Ou (2007, R. Corotis co-advisor)

12. Nattapong Damrongwiriyanupap (2010)

13. Pania Mashgin (2011)

14. Okpin Na (2011)

15. Yu-Chang Liang (2012)

16. Wemphy Hanafi (2012, transferred to another school)

17. Hesham Abdualla (2014, transferred to another school)

18. Musiket Kamtornkiat (2014, F. Vernerey co-advisor)

19. Ali Harajli (2016, D.M. Frangopol co-advisor)

20. Jiang Zhilv (2014-2016, visiting Ph.D. student)

21. Fatimah Ali (current)

22. Yuxiang Jing (current)

23. Yao Wang (current)

24. Linfei Li (current)

25. Mohamed Abdelrahman (current)

26. Mohammed Zainy (current)

 

M.S. Students (M.S. Thesis or M.S. Report)

 

1.   F.E. Amparano (1995 at Drexel Univ.)

2.   W. Xiang (1998 at Drexel Univ.).

3.   A. Hakhi (1998)

4.   W. Graziano (1999)

5.   J.H. Kim (1999)

6.   J.H. Shin (2000)

7.   B. Black (2001)

8.   Y.J. Cho (2002)

9.   J.S. Lee (2002)

10. K. Chanvut (2002)

11. M.P. Blangy (2002)

12. Z.H. Xie (2002)

13. R. Cusson (2002)

14. K. Streeter (2002)

15. S. Holst (2003)

16. J. Richards (2004)

17. S.R. Deshpande (2004)

18. Bret Banwart (2004)

19. R. Sheehan (2005)

20. Lydia Abarr (2005)

21. J. Walbert (2005)

22. D. Doherty (2005)

23. Scott Hamel (2005)

24. P. Orendorff (2005)

25. Adnan Muzaffar (2006)

26. M. Yamakawa (2008)

27. Haideh Shams Hakimi (2008)

28. Dustin Virgilio (2009)

29. Moad H. Isteita (2009)

30. John Calvert (2010)

31. Hesham S.R. Abdualla (2010)

32. Brandon Parker (2011)

33. Andrew Geister (2011)

34. Courtney Shepard (2011)

35. Jack Thorpe (2012)

36. Johan Bjorkquist (2012)

37. Lee Maggert (2012)

38. Wayne Brown (2012)

39. Xingang Wang (2013)

40. Brandon Buder (2013)

41. Mitchell Rosendahl (2013)

42. Tate Fairbanks (2013)

43. Benjamin Gallaher (2013)

44. Yao Wang (2014)

45. Linfei Li (2014)

46. William Lam (2014)

47. Mohammed Zainy (2015)

48. Zach Banachowski (2016, discontinued and to be completed)

49. Raj Mehta (2017)

50. Shan Wo (current)

51. Elizabeth Jefferson (current)

52. Christopher C. Frishcosy (current)

 

Host sabbatical leave professors

 

Z.J. Li (2002); L. Bennethum (2003-2004); A. Ababneh (2010); Sungjin Jung (2010); Seunghun Kim (2011); Inkyu Rhee (2012); Youngsook Roh (2012); Jiří Němeček (Fulbright Scholar 2013); Jaesung Lee (2014); and Bangsub Lee (2014).

 

Host exchange scholars

 

J.N. Liu (Visiting scholar 1996); F. Alleau (Exchange student 1997); F. Benboudjema (Exchange student 1997); F. Cherqui (Exchange student 1999); C. Gavard (Exchange student 1999); Aurelie Jean (Exchange student 2004); Stephane Milhaud (Exchange student 2005); Thomas DeLarrard (Exchange student 2005); and Ludovic Missemer (Exchange student 2006); Deborah Sperling (NSF/REU, 2005); Augustin Parret-Freaud (Exchange student 2006); Chao Su (Visiting scholar 2007-2008); Adrien Hilaire (Exchange student 2009); Zhengmao Ye (Visiting scholar 2009); Fei Li (Visiting scholar 2011); Yu Bai (Visiting scholar 2011); Guohua Li (Visiting scholar 2011); Jin Xia (postdoc 2012); Helene Penvern (visiting scholar 2012); Wunchock Kroehong (visiting scholar 2012); Zhuge Yan (visiting professor 2012); Fu Jun (visiting professor 2012); Li Jizhen (visiting professor 2013); Xu Jinxia (visiting professor 2013); Xu Peizhen (visiting professor 2013); Decret Damien (visiting student 2015); Thomas Langlade (visiting student 2015); Shiping Yin (visiting professor 2015); Yaguang Zhu (visiting professor 2015); Chunxia Xue (visiting professor 2016); Hongqiang Chu (visiting professor 2016-2017); and Jessica Lopez (2017).

 

Research associates and professional research assistants supervised

 

Z.H. Xie (1999); A. Asiz (2003); Y. Li (2003, 2010); A. Ababneh (2003, 2010); Suwito (2005); J.S. Lee (2006); W.P. Zhang (2006); Kent Polkinghorne (2012 to 2013); Lindsay Marshall (2004 to 2013); Cassandra Guild (2013 to 2015); Jiří Němeček (2016-2017); Chao Jiang (2017-2019); Renee Railsback (2002 to present); and Sarah Wilson (2015-present).