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Effect of freeze and thaw on confined resilient modulus of improved lime-soil(PDF)

长安大学学报（自然科学版）[ISSN:1006-6977/CN:61-1281/TN]

Issue:
2013年02期
Page:
33-37
Research Field:
道路工程
Publishing date:

Info

Title:
Effect of freeze and thaw on confined resilient modulus of improved lime-soil
Author(s):
WANG Hai-peng1;  HAN Chun-peng2
1. School of Engineering Consulting & Design, Northeast Forestry University, Harbin 150040, Heilongjiang, China; 2. School of Civil Engineering, Northeast Forestry University, Harbin 150040, Heilongjiang, China
Keywords:
road engineering;  freeze and thaw;  lime modified soil;  resilient modulus
PACS:
U416.1
DOI:
-
Abstract:
To research resilient modulus changing law of lime modified soil with freeze and thaw, the experiment was carried out under different ratios of lime to soil and the optimum moisture content. The results indicate that when ratio of lime to soil is under 8%, the higher the ratio of lime to soil, the bigger the resilient modulus of lime modified soil, and the more the cycle times of freeze and thaw, the less the resilient modulus; the decay amplitude of resilient modulus is the largest after the first time of freeze and thaw, and the resilient modulus after 6 times of freeze and thaw is gradually close to stability; under every ratio of lime to soil, the decay amplitude of lime-soil resilient modulus after freeze and thaw is lower than that of soil; for lime-soils with different compactedness, decay trends about resilient moduli of lime-soil are roughly the same, and after freeze and thaw, the decay amplitude of resilient modulus is about 30% compared with lime-soil without freeze and thaw. 2 tabs, 4 figs, 12 refs.

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Last Update: 2013-04-20