Curriculum Vitae






James Lai

Professor Emeritus
Geosystems Engineering




Biography

Dr. Lai is an internationally renowned expert on pavement engineering, construction materials and engineering mechanics.  The following are some of his major contributions in these areas:Dr. Lai Invented the Georgia Load Wheel Tester (GLWT) and developed the specification for assessing rutting propensity of asphalt mixtures. The apparatus and the specifications have been used by GDOT since 1989. Since then, this machine and its modified version, called Asphalt Pavement Analyzer (APA), have been used by more than 30 State DOTs in the US and by many highway agencies abroad.  As the result of its popularity the Transportation Research Board initiated a NCHRP research program to assess the viability of this apparatus for evaluating rutting propensity of asphalt mixtures and the results were published in the NCHRP Report 508 in 2003.Development of Computerized Pavement Condition Evaluation System (COPACES) for Georgia DOT, which has been implemented by GDOT since 1998, and development of Georgia DOT Pavement Management System (GPAM), which has been implemented by GDOT since 1999.Development of high performance concrete for prestressed bridges for the Georgia Department of Transportation and the Federal Highway Administration, 1996-2000.  The compressive strength for the high performance concrete developed was up to 20,000 psi.  Several State DOT in the U.S., including Georgia, South Carolina and North Carolina, have since used the concrete for their prestressed bridges construction.Development of micro-milling techniques and the specifications for GDOT for milling existing deteriorated asphalt surface in conjunction with thin asphalt overlaysas part of an asphalt pavement preservation treatment method.  Use of this method when compared with the conventional milling and overlay method could result in estimated cost savings of over $55,000 per lane mile.  This method has been widely adopted by GDOT since 2008.Developing VESYS-G (probabilistic viscoelastic based) asphalt pavement design system for the FHWA, 1973-1978.  This system served as one of the basic frameworks used by the FHWA and TRB for developing the MEPDG Asphalt pavement design method (Mechanistic-Empirical Pavement Design Method).Evaluating and characterizing mechanical properties of many geotextile materials and developing the design method for use of TYPAR (Nonwoven Geotextile produced by DuPont) and other geotextile for unpaved roads and other geotechnical applications when geotextile was emerging as a class of new construction materials in the United States in early 1970s.Developing constitutive equations for non-liner viscoelastic materials and characterizing non-linear creep and stress relaxation properties of different classes of materials including plastics, FRP, high performance aluminum at elevated temperatures and asphalt concrete, 1965-1980.

Education

  • Ph.D. Mechanics of Solids, Brown University 1967
  • MS Engineering Mechancis, Brown University 1965
  • BS Civil Engineering, National Taiwan University 1962

Research Interests

  • Highway and Airfield Pavement Design, Construction and Rehabilitation
  • Concrete Technology
  • Asphalt Technology
  • Geotextile
  • Soil Stabilization
  • Fiber Reinforced Plastics
  • Engineering Mechanics
  • Application of Information Technology for Pavement Systems

Honors

  • Recipient of Life Time Achievement Award, Association of China Paving Engineering Association, Taiwan, August, 1997.
  • Organizer and Chair of the Transportation Session of the Sino-American Technology Engineering Conference, Beijing, PRC, October 29-November 2, 1995.
  • Advisor to the Director General of Taiwan Freeway Bureau of the Republic of China, (1980-1985, 2007-2010).
  • Member of the Advisory Council of the Ministry of Communication of the Republic of China, (1972-1975).
  • Co-Chairman, International Symposium on the Use of Rubber in Asphalt Pavements, Salt Lake City, Utah, May 10-13, 1971.

Articles

  1. Lai, J.S., and Findley, W.N., "A Modified Superposition Principal Applied to Creep on Nonlinear Viscoelastic materials", Trans. Society of Rheology, Vol. 11-3, pp. 361-380 (1967).
  2. Lai, J.S., and Findley, W.N., "Stress Relaxation of Nonlinear Viscoelastic Material Under Triaxial Strain", Trans. Society of Rheology, Vol. 12-2, pp. 259-280 (1968).
  3. Lai, J.S., and Findley, W.N., "Prediction of Uniaxial Stress Relaxation from Creep of Nonlinear Viscoelastic Material", Trans. Society of Rheology, Vol. 12-2, pp. 243-257 (1968).
  4. Lai, J.S., and Findley, W.N., "Behavior of Nonlinear Viscoelastic mater Simultaneous Stress Relaxation in Tension and Creep in Torsion", Journal of Applied Mechanics, Vol. 36, pp. 22-27, (1969).
  5. Lai, J.S., and Findley, W.N., "Nonlinear Creep Behavior of Polycarbonate", J. Poly. Eng. And Science, Vol. 9, pp 378-390, (1970).
  6. Lai, J.S., and Fitzgerald, J.E., "Effect of Synthetic Rubber Additives on Thermorheological Properties of Asphalt Mixtures", Highway Research Board No. 313 (1971).
  7. Lai, J.S., Darter, M.I., and Vokac, R., "Trends of Pavement characteristics During Twelve Months of a Design Experiments", Highway Research board Special Report, 116, (1971).
  8. Lai, J.S., "Performance of Rubberized Asphalt Pavement", Road News, Vol. 10, No. 4, pp. 125-137 (1971).
  9. Lai, J.S., "Use of Dynaflect to Measure pavement Structural Strength", J. China Civil Engineering, Vol. 9, pp. 63-71 (1971).
  10. Lai, J.S., "Thermorheological Properties of Rubberized Asphalt Concrete", Proceedings, International Symposium on the Use of Rubber-in-Asphalt Pavements, Salt Lake City, Utah, pp. 46-69 (1971).
  11. Nolte, K. G., Lai, J.S., and Findley, W.N., "Concerning a Creep Surface for an Aluminum Alloy", J. of Applied Mechanics, Vol. 39 (1972).
  12. Lai, J.S., and Findley, W.N., "Creep of Polyurethane at Varying Temperature Under Nonlinear Uniaxial Stress", Trans. Society of Rheology, Vol. 17-1, pp. 63-88 (1973).
  13. Lai, J.S., and Findley, W.N., "Elevated Temperature Creep of Polyurethane Under Nonlinear Torsional Stress", Trans. Society of Rheology, Vol. 17-1, 129-150 (1973).
  14. Lai, J.S., "Irrecoverable and Recoverable Nonlinear Viscoelastic Properties of Asphalt Concrete", Highway Research Board, No. 466 (1973).
  15. Lai, J.S., Hicks, R.G., Berryhill, I.J., and Crawford, T.R., "State of the Art of Class I Bikepath Pavements", Proceedings, Third International Conference on Bicycle and Pedestrian Facilities Planning and Design, New Orleans, La., (1975).
  16. Lai, J.S., and Hicks, R.G., "Design and Analysis of Bikeway Pavemnets", Proceedings, Fourth International Conference on Bicycle and Pedestrian Facilities Planning and Design, Toronto, Canada, July (1976).
  17. Lai, J.S. and Hufferd, W.L., "On Predicting the Pavement Deformation of Asphalt Concrete from Creep Tests", Highway Research Record, No. 616 (1976).
  18. Lai, J.S., and Findley, W.N., "A Viscous-Viscoelastic Model for Creep and Recovery of Aluminum 2618 Alloy Under Combined Stress", Journal of Applied Mechanics, Vol. 47-1, pp. 21-26 (1978).
  19. Lai, J.S. and Barksdale, R.D., "Use of Mini-Computer in Materials and Geotechnical Education", Proceedings of Computing in Civil Engineering, Atlanta, Ga. (1978).
  20. Lai, J.S., and Findley, W.N., " Creep of 2618 Aluminum under Step Stress Changes Predicted by a Viscous-Viscoelastic Model", Journal of Applied Mechanics, Vol. 45 September (1978).
  21. Lai, J.S., "Probabilistic Solutions for Viscoelastic Layered Systems", Proceedings, Third International conference on Applications of Statistics and Probabilities, Sydney, Australia, January (1979).
  22. Lai, J.S., "Evaluation of Mechanical Properties of Geotextiles", Proceedings, Conference on Textiles in Civil Engineering, Clemson University, SC, (1979).
  23. Lavin, J.G., Murry, C.D., Murch, L.E., Robnett, Q.L., and Lai, J.S., "Properties for Spunbound Fabrics in Civil Engineering Applications", Proceedings, Non-Woven Fabrics Conference, University of Manchester Institute of Science and Technology, June (1980).
  24. Lai, J.S., and Findley, W.N., " Creep of 2618 Aluminum under Side Steps of Tension and Torsion and Stress Reversal Predicted by a Viscous-Viscoelastic Model", Journal of Applied Mechanics, Vol. 47 March (1980).
  25. Robnett, Q.L., Lai, J.S., Lavin, J.G., Murry, C.D., Murch, L.E., "Use of Geotextiles in Road Construction", Proceedings, First Canadian Symposium on Geotextiles, Calgary, Alberta, Canada, September (1980).
  26. Robnett, Q.L.and Lai, J.S., " Use of Geotextiles to Extend Aggregate Resources", Symposium on Extending Aggregate Resources, American Society for Testing and Materials, Orlando, Fl. (1080).
  27. Lai, J.S., and Findley, W.N., " Creep of 2618 Aluminum under Steps of Tension and Torsion and Stress Reversal Predicted by a Viscous-Viscoelastic Model", Journal of Applied Mechanics, Vol. 48 (1981).
  28. Lai, J.S., and Robnett, Q.L., "Design and Use of Geotextiles in Road Construction", Proceedings, The Third Conference of Road Engineering Association of Asia and Australia, Taipei, Taiwan, April (1981).
  29. Lai, J.S., and Findley, W.N., "Simultaneous Stress Relaxation in Tension in Tension and Creep in Torsion of 2618 Aluminum alloy at elevated Temperature", Journal of Applied Mechanics, Vol. 49 March (1982).
  30. Barksdale, R.D., Robnett, Q.L., Lai, J.S., and Zeeveaert-Wolff, A., "Experimental and theoretical Behavior of Geotextile Reinforced Aggregate Soil System", Proceedings, Second International Conference on Geotextiles, Las Vegas, August (1982).
  31. Robnett, Q.L., Lai, J.S. and Murch, L.E., "Effect of Fabric Properties on the Performance and Design of Aggregate-Fabric Soil Systems", Proceedings, Second International Conference on Geotextiles, Las Vegas, August (1982).
  32. Lai, J.S., "Use of Geotextiles in Filtration, embankment and Erosion Control", Proceedings, Deep Excavation, Embankment Design and Use of Geotextiles, National Taiwan University, Taipei, Taiwan, June (1983).
  33. Lai, J.S. "Design of Fabric Reinforced Earth Structures", Proceedings, Deep Excavation, Embankment Design and Use of Geotextiles, National Taiwan University, Taipei, Taiwan, June (1983).
  34. Lai, J.S., "Rapid Repair Techniques for Concrete Pavements", Proceedings, the First Conference of Pavement Engineering, Taichung, Taiwan, September (1985).
  35. Lai, J.S., and Chen, S.G., "Design and Analysis of Geogrid Reinforced Retaining walls", Journal of Geotechnical Engineering, Taiwan, March (1987).
  36. Lai, J.S., "Correlation between Compressive Strength and Modulus of Rupture of Concrete for Taiwan Northern Second Freeway", Proceedings, Third Conference of Pavement Engineering, Taipei, Taiwan, June (1987).
  37. Lai, J.S., "Use of Loaded Wheel Testing Machine to Evaluate Rutting of Asphalt Mixes", Transportation Research Record, No. 1269 (1988).
  38. Lai, J.S., "Special Considerations in the Development of Concrete Pavement for the Second Freeway Systems in Taiwan", Proceedings, Sixth conference of Pavement Engineering, Taipei, Taiwan, July (1991).
  39. D. Scott, J.S. Lai, and A. Zureick, "Creep Behavior of Fiber-Reinforced Polymeric Composites: A Review of the Technical Literature", Journal of Reinforced Plastics and Composites, Vol. 14 - June (1995).
  40. S. L. Lin, J.S. Lai and E.S. K. Chian, "Modifications of Sulfur Polymer Cement Stabilization and Solidification Process", International Journal of Industrial Waste Technology, Waster Management, Vol. 15, pp. 441-447 (1995).
  41. Lai, J.S., "Rutting Resistance of Asphalt Mixes with Different Polymer Modifiers", International Conference on Asphalt Modifiers, Memphis, Tenn., January (1995).
  42. H. Shami and J.S. Lai, "Development of Temperature Effect Model for Predicting Rutting of Asphalt Mixtures Using Georgia Loaded Wheel Tester," Transportation Research Record, No. 1492, (1995).
  43. J.S. Lai, "Design, Construction and Properties of Stone-Matrix Asphalt", The 8th Pavement Engineering Conference, Taipei, Taiwan, December 6-8, (1995).
  44. J.S. Lai, "Improving Asphalt Binders and Asphalt Mixtures for Better Pavements", Proceedings of Sino-American Technology Engineering Conference, Beijing, PRC, October 29-November 2, (1995).
  45. S. L. Lin, W.H. Cross, E.S.K. Chian, J.S. Lai, M. Giabbai, and C.H. Hong, " Stabilization and Solidification of Lead in Contaminated Soils", Journal of Hazardous Materials,Vol. 48 pp. 95-110 (1996).
  46. S. L. Lin, W.H. Cross, E.S.K. Chian, J.S. Lai, and C.H. Hong, " Stabilization and Solidification of Lead in Contaminated Soils", Journal of Hazardous Materials, (1996).
  47. C.Y. Kuo, J.D. Frost, J.S. Lai and L.B. Wang, "Three-Dimensional Image Analysis of Aggregate Particles from Orthogonal Projections", Transportation Research Record, No. 1526, (1996).
  48. S. L. Lin, Edward Chian, Y. Su and J.S. Lai, "Micromorphological Studies of Using Sulfur as a Binder in Stabilization and Solidification of Lead Contaminated Wastes", Environmental Science & Technology, (1996).
  49. S. L. Lin, W.H. Cross, E.S.K. Chian, J.S. Lai, M. Giabbai, and C.H. Hong, " Stabilization and Solidification of Lead in Contaminated Soils", Journal of Hazardous Materials, Vol. 48 pp. 95-110 (1996).
  50. R. Collins, H. Shami and J.S. Lai, "Use of Georgia Loaded Wheel Tester to Evaluate Rutting of Asphalt Samples Prepared by Superpave Gyratory Compactor," Transportation Research Record, No. 1545, (1996).
  51. L. F. Kahn, J.S. Lai, and R. Leon, "Use of High Strength/ High Performance Concrete for Precast Prestressed Concrete Bridges in Georgia", Proceedings, Conference on High Performance Concrete, Atlanta, GA, March 19, (1997).
  52. James S. Lai, "Use of High Strength/High Performance Concrete for Pavement construction," Proceedings, The Ninth Pavement Engineering Conference, Taichong, Taiwan, August 20-23, 1997.
  53. Linbing Wang, James S. Lai, and J. David Frost, "Fourier Morphological Descriptors of Aggregate Profiles", Proceedings, Engineering Foundation Conference on Imaging Techniques: Techniques and Applications in Civil Engineering, Davos, ASCE, pp 76-87, 1997.
  54. H. Shami and J.S. Lai, "Development of Temperature Effect Model for Predicting Rutting of Asphalt Mixtures Using Georgia Loaded Wheel Tester," Transportation Research Record, No. 1590, 1997.
  55. Yi-Chang Tsai, James S. Lai, and Lixiang Sun, "Developing a Knowledge Based System for Identifying Causes of Asphalt Pavement Distress," Proceedings, First International Conference on New Information Technologies for Decision Making in Civil Engineering, Montreal, Canada, October 1998.
  56. Linbing Wang and J.S. Lai, "Quantify Specific Surface Area of Aggregates Using Imaging Technique," Transportation Research Board Record, 1998.
  57. Yi-Chang Tsai, Lixiang Wu, and James S. Lai, "Development of an Expert System for Assessing Asphalt Pavement Distresses," Eighteenth ESRI International User Conference, San Diego, July 27-31, (1998).
  58. Linbing Wang, J. David Frost and J.S. Lai, "Non-Invasive Measurement of Permanent Strain Field Resulting from Rutting in Asphalt Concrete," Transportation Research Record, No. 1687, (1999).
  59. Yi-Chang Tsai and James Lai, "Utilization of Information Technology to Enhance an Asphalt Pavement condition Evaluation Program," International Journal Pavement Engineering, Vol. 00, pp. 1-16. (2000).
  60. Aziz Saber, Lawrence F. Kahn, and James S. Lai, "Investigating the Use of Maturity Method in High Performance Concrete," Fifth International Bridge Engineering Conference, Tampa Florida, April (2000).
  61. Yi-Chang Tsai, James Lai, and Yiching Wu, "Using GIS to Support Network-level Pavement Maintenance Analysis," Proceedings, Second Int'l Conference on Decision Making in Urban and Civil Engineering, Lyon, France, November 20-22, (2000).
  62. Yi-Chang Tsai and James Lai, "Framework and Strategy for Implementing an Information Technology-Based Pavement Management System," Transportation Research Record, No. 1816, (2002).
  63. L.B. Wang, J.D. Frost, and J.S. Lai, "Three-Dimensional Digital Representation of Granular Material Microstructure from X-Ray Tomography Imaging," Journal of Computing in Civil Engineering, Vol. 18, No. 1, January 2004.
  64. Yi-Chang Tsai, Bo Gao, and James Lai, "GIS-Enabled Multi-Year Project-Linked Network Pavement MR&R System," Transportation Research Record, No. 1889, (2004)
  65. James S Lai, Peter Y Wu, Sheila Hines, and David M Jared, "Georgia's Pavement preservation with Micromilling - A Follow Up Study," Transportation Research Board Annual Meeting 2012 Paper #12-0659, Transportation Research Board, Washington, D.C. , 2012.
  66. Yi-Chang Tsai, Yiching Wu, James S Lai, and Georgene Geary, " Characterizing Micro-Milled Pavement Textures Using RVD For Super-Thin Resurfacing On I-95 Using A Road Profiler," a paper presented at Transportation Research Board Annual Meeting 2012, Transportation Research Board, Washington, D.C. , 2012.

Books

  1. Creep and Stress Relaxation of Nonlinear Viscoelastic Material, co-authors with Findley and Onaran, North-Holland Publishers, 1976, and Dover Publisher, 1989.
  2. Materials of Construction, Kendall/Hunt Publishing Co. 1997.

Updated date: December 5, 2014 - 13:49