Junping Ren

Name:Junping Ren
Date of Birth:July 07, 1990
Institution:College of Civil Engineering and Mechanics, Lanzhou University
Address:222 South Tianshui Road, Lanzhou 730000, China
2015.09-2019.09 Ph.D. in Civil Engineering, Faculty of Engineering, University of Ottawa, Ottawa, Canada
2018.05-2018.07 Visiting scholar at the Department of Civil Engineering, Case Western Reserve University, Cleveland, USA
2012.09-2015.07 M.S. in Road and Railway Engineering, School of Highway, Chang’an University, Xi’an, China
2008.09-2012.07 B.S. in Road, Bridge and River Crossing Engineering (Road Engineering), School of Highway, Chang’an University, Xi’an, China
2020.12-Present Young Researcher, College of Civil Engineering and Mechanics, Lanzhou University, Lanzhou, China
2019.10-2020.10 Postdoctoral Research Fellow (JSPS), Faculty of Engineering, Hokkaido University, Sapporo, Japan
Research Areas
1. Soil-water characteristic curve (SWCC) and Soil-freezing characteristic curve (SFCC)
2. Water, vapor and solute migration in unsaturated freezing soils
3. Soil behavior under drying-wetting and freezing-thawing cycles
4. Multiphases interaction in porous materials
Visiting Positions
Members and Activities
1. Member: Canadian Geotechnical Society; American Society of Civil Engineers.
2. Reviewer: Water Resources Research; Cement and Concrete Composites; Vadose Zone Journal; Cold Regions Science and Technology; Science of The Total Environment; etc.
3. Guest Editor. Advances in Civil Engineering. Special Issue: Problematic and Unsaturated Soil Mechanics: Fundamental Challenges, Breakthroughs, and Opportunities.
2020.05: Sciences in Cold and Arid Regions 2017-2018 Excellent Author
2019.10: Postdoctoral Fellowship, Japan Society for the Promotion of Science (JSPS)
2018.05-2018.07: Faculty International Experience Scholarship, University of Ottawa
2015.09-2019.08: China Scholarship Council (CSC)–University of Ottawa joint scholarship
2013: “Huawei Cup” 10th China Post-Graduate Mathematical Contest in Modeling, Second Prize
2011: 6th National Competition of Transport Science and Technology for Students (NACTranS), Second Prize
2010: Contemporary Undergraduate Mathematical Contest in Modeling (CUMCM), First Prize
Main Courses
Research Grants

1. Key Laboratory of Mechanics On Disaster and Environment in Western China, The Ministry of Education of China, Lanzhou University, The frost heave of an unsaturated freezing soil, 2022.01-2023.12

2.Japan Society for the Promotion of Science (JSPS), The freezing characteristic and frost heave behavior of a typical Hokkaido soil, 2019-2020

3. Ministry of Transportation of Ontario of Canada (MTO), Highway Infrastructure Innovation Funding Program Project: Simple Approaches for Predicting Resilient Modulus of Ontario Pavement Materials Considering the Influence of Temperature and Moisture Changes, 2016-2019

4. National Research Council of Canada (NRC), Climate-Resilient Core Public Infrastructure: Roads Project: Influence of Climate Factors on the Long Term Performance of Pavements, 2017

Refereed Publications

1.Ren, J.P., Zhang, S.L., Wang C.*, Ishikawa, T., and Vanapalli, S.K. 2021. The measurement of unfrozen water content and SFCC of a coarse-grained volcanic soil. Journal of Testing and Evaluation, 1-25. DOI:

2.Ren, J.P., and Vanapalli, S.K.* 2020. Effect of freeze-thaw cycling on the soil-freezing characteristic curve of five Canadian soils. Vadose Zone Journal, 19(1), p.e20039. DOI:

3.Ren, J.P., Vanapalli, S.K.*, Han, Z., Omenogor, K.O., and Bai, Y. 2019. The resilient moduli of five Canadian soils under wetting and freeze-thaw conditions and their estimation by using an artificial neural network model. Cold Regions Science and Technology, 168: 1-14. DOI:

4.Ren, J.P., and Vanapalli, S.K.* 2019. Comparison of soil-freezing and soil-water characteristic curves of two Canadian soils. Vadose Zone Journal, 18:180185. DOI:

5.Ren, J.P., and Vanapalli, S.K.* 2018. Discussion on “A new model for capturing void ratio-dependent unfrozen water characteristics curves”. Computers and Geotechnics, 103: 82-85. DOI:

6.Ren, J.P., and Vanapalli, S.K.* 2018. Empirical model for predicting the resilient modulus of frozen unbound road materials using a hyperbolic function. Transportation Geotechnics, 17: 66-74. DOI:

7.Han, Z., Vanapalli, S.K.*, Ren, J.P., and Zou, W.L. 2018. Characterizing cyclic and static moduli and strength of compacted pavement subgrade soils considering moisture variation. Soils and Foundations, 58(5): 1187-1199. DOI:

8.Ren, J.P., and Vanapalli, S.K.* 2017. Prediction of the resilient modulus of frozen unbound road materials using the soil-freezing characteristic curve. Canadian Geotechnical Journal, 1-8. DOI:

9.Ren, J.P., Vanapalli, S.K.*, and Han Z. 2017. Soil freezing process and different expressions for the soil-freezing characteristic curve. Sciences in Cold and Arid Regions, 9(3): 0221–0228. DOI:

10.Ren, J.P., Ma, B.*, Si, W., Zhou, X.Y., and Li, C. 2014. Preparation and analysis of composite phase change material used in asphalt mixture by sol–gel method. Construction and Building Materials, 71: 53-62. DOI: