天然橡胶
材料科学
膨胀性粘土
岩土工程
剪切模量
复合材料
土工合成材料
粒径
膨胀的
阻尼比
土壤水分
地质学
土壤科学
抗压强度
振动
古生物学
物理
量子力学
作者
Zuosheng Yang,Zongqing Lu,Wei Shi,C. Wang,Ling Xue,J. Li,Da Guan
出处
期刊:Geosynthetics International
[Thomas Telford Ltd.]
日期:2023-02-28
卷期号:: 1-14
标识
DOI:10.1680/jgein.22.00263
摘要
Waste rubber has been widely applied in geotechnical engineering, benefiting from its light weight, high elasticity, low density, good durability and high compressibility. In this paper, the effects of rubber content (RC) and rubber size (d 0 ) on the dynamic properties of expansive soil–rubber (ESR) were investigated by low-temperature dynamic triaxial tests. The results show that: (1) the shear stress of ESR decreases with the increase of RC with a particle size ratio of 1.3, but first decreases and then increases with a particle size ratio of 2.4; (2) the RC threshold between soil-like and rubber-like ESR is 10%; (3) the maximum shear modulus ratio of ESR occurs at RC = 10% and d 0 = 0.25 mm, with the best dynamic performance; (4) the hysteretic curve of ESR was flat and elliptical, deviating upward to the right at freezing condition. In addition, different contact modes between rubber and expansive soil are proposed and the contact mechanism has been revealed.
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