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Updated: Aug 5, 2026
06:07
Studying Large Amplitude Oscillatory Shear Response of Soft Materials
Published on: April 25, 2019
Research on Dynamic Characteristics and Modulus Attenuation Evolution of Rubber Particle Loess
Haijun Li1, Jianguang Bai1, Wenqi Kou1
1College of Energy and Transportation Engineering, Inner Mongolia Agricultural University, Hohhot 010018, China.
Materials (Basel, Switzerland)
|July 28, 2026
Summary
Adding rubber particles to loess soil improves its dynamic strength and stability, especially after freeze-thaw cycles. Optimal results were achieved with 5% rubber content and 40-mesh particles for geotechnical applications.
Area of Science:
- Geotechnical Engineering
- Materials Science
- Environmental Science
Background:
- Loess soils in seasonally frozen regions exhibit water-induced softening and dynamic instability.
- This instability presents significant challenges for geotechnical engineering projects.
- Waste-tire-derived rubber particles offer a sustainable solution for improving loess properties.
Purpose of the Study:
- To investigate the dynamic characteristics of rubber particle-modified loess.
- To analyze the modulus attenuation evolution under coupled environmental factors.
- To establish a theoretical basis for the engineering application of modified loess.
Main Methods:
- Dynamic triaxial tests were performed on rubber particle-loess mixtures.
- The study examined the effects of rubber content, particle size, moisture content, and freeze-thaw cycles.
- Constitutive relationships and modulus attenuation were modeled.
Main Results:
- The optimal mix for enhanced dynamic strength was 5% rubber content with 40-mesh rubber particles.
- Increased moisture and freeze-thaw cycles degraded the dynamic elastic modulus and strain.
- Higher confining pressure improved the dynamic elastic modulus and strain.
- The Hardin-Drnevich hyperbolic model described the dynamic constitutive relationship.
Conclusions:
- Rubber particle modification enhances the dynamic performance of loess in seasonally frozen environments.
- The study provides critical insights into the behavior of modified loess under various conditions.
- Findings support the use of rubberized loess in geotechnical engineering applications in cold regions.
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