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Mechanical properties and energy dissipation of waste rubber cemented soil under cyclic loading mode
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DOI：10.1007/s10064-026-05236-z.png)
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Abstract
En 中文
The continual accumulation of waste tires poses significant environmental and human health risks, underscoring the need for effective disposal strategies as a global priority. Processing waste tires into particles and then incorporating them into cemented soil presents an effective solution. In this study, the effects of loading mode, rubber content, and particle size on the mechanical properties and strain field evolution of waste rubber cemented soil (WRCS) are systematically investigated through incremental (ICL) and graded (GCL) cyclic loading tests combined with digital image correlation (DIC) technology. The results suggest that the cumulative residual strain increases continuously with cycle number under both cyclic loading modes. Notably, a “transition growth stage” occurs when the stress level grows in GCL mode. The cumulative residual strain rises with increasing rubber content. Meanwhile, WRCS specimens with 0.1 mm rubber particles demonstrate superior deformation characteristics compared to those with 2 mm particles. Under both cyclic loading modes, specimens exhibit typical U-shaped evolution patterns in dissipation ratio, with ICL mode showcasing higher values than GCL mode. Dissipation ratio increases with rubber particle content, and specimens containing 0.1 mm rubber particles reveal particularly prominent energy dissipation characteristics at identical content levels. Furthermore, the incorporation of rubber induces a transition in the failure mode of cemented soil from brittle to ductile behavior. Compared to specimens with 2 mm rubber particles, those modified with 0.1 mm particles develop denser and more uniformly distributed strain bands.
Keywords:
Waste rubber cemented soil
Deformation modulus
Damping ratio
Dissipation ratio
Digital image correlation
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