DataVXRoad Materials and Pavement DesignPaper
journal article·2018-05-19

Effect of repeated freeze-thaw cycles on the resilient modulus for fine-grained subgrade soils with low plasticity index

Weina Wang, Yu Qin, Mingxuan Lei, Xilan Zhi

Road Materials and Pavement Design· Volume 19· Issue 4
Publisher page
Source abstract

Abstract

The resilient modulus of the subgrade is an important material parameter for pavement design. This paper presents an unconfined laboratory testing method for resilient modulus under repeated freeze-thaw cycles. The method was validated by a standard testing method. Specimens of three types of fine-grained subgrade soil with a low plasticity index with five different levels of moisture were tested by the proposed testing procedure. The size of the specimen was 50 mm in diameter and 50 mm in height to more accurately illustrate the freeze-thaw conditions. The numbers of freeze-thaw cycles were designated 0, 3, 6, 9 and 12. The results indicate that all the soils exhibited a substantially reduced resilient modulus after the first three freeze-thaw cycles. After six freeze-thaw cycles, the decrease in the resilient modulus was not obvious. The resilient modulus due to six cycles was suggested for use in pavement design. The reduction coefficients for the freeze-thaw effect were also recommended. These reduction coefficients are 0.5–0.6 for specimens with optimum moisture content and 0.7–0.8 for specimens under dry conditions.
Source: openalex_inverted_index · Quality: baseline

Research context

OpenAlex topics: Geotechnical Engineering and Soil Stabilization · Geotechnical Engineering and Soil Mechanics · Geotechnical Engineering and Underground Structures

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

State and Local Engineering Laboratory for Civil Engineering Material, Chongqing Jiaotong University, Chongqing, People's Republic of China

School of Civil Engineering, Chongqing Jiaotong University, Chongqing, People's Republic of China

CREEC (Chongqing) Survey, Design and Research Co. Ltd, Chongqing, People's Republic of China

CCCC First Highway Consultants Co., Ltd, Xi’an, Shannxi, People's Republic of China

Key Laboratory for Special Area Highway Engineering of Ministry of Education, Chang’an University, Xi’an, Shannxi, People's Republic of China

Funding

National Science Foundation of China · China Postdoctoral Science Foundation · Chongqing Science and Technology Commission · Department of Human Resource and Social Security of Chongqing · State and Local Engineering Laboratory for Civil Engineering Material of Chongqing Jiaotong University

References (15)

Show source-provided references
1. 10.1520/JTE2013007010.1520/JTE20130070 ↗
2. 10.1080/14680629.2014.93969710.1080/14680629.2014.939697 ↗
3. 10.1016/j.coldregions.2014.12.00810.1016/j.coldregions.2014.12.008 ↗
4. 10.1016/j.coldregions.2014.06.00810.1016/j.coldregions.2014.06.008 ↗
5. 10.3141/1821-0610.3141/1821-06 ↗
6. 10.1061/9780784412473.00810.1061/9780784412473.008 ↗
7. Liu H. W. · 2011
8. Mao X. S. · Chinese Journal Rock Mechanics and Engineering · 2009 · 28 · 3885
9. Mao X. S. · Journal of Glaciology and Georyology · 2012 · 34 · 427
10. 10.1016/j.coldregions.2007.05.01010.1016/j.coldregions.2007.05.010 ↗
11. Research Institute of Highway Ministry of Transport · 2006
12. Research Institute of Highway Ministry of Transport · 2007
13. 10.1061/(ASCE)0887-381X(2002)16:1(28)10.1061/(ASCE)0887-381X(2002)16:1(28) ↗
14. 10.1016/j.coldregions.2006.09.00810.1016/j.coldregions.2006.09.008 ↗
15. Wang W. N. · Journal of Glaciology and Georyology · 2010 · 32 · 954