Affiliation:
1. College of Civil Engineering, Fuzhou University, Fuzhou, China
Abstract
<p>As a new type of environmentally friendly lightweight composite material, rubber sand mixture has a wide application prospect in the field of engineering vibration isolation. In order to reveal the variation law of dynamic characteristics of different rubber sand mixtures, based on the dynamic triaxial test, the effects of rubber content and confining pressure on the backbone curve, dynamic shear modulus and damping ratio of mixtures were studied. The results showed that with an increase in the rubber content, the backbone curve of rubber sand mixture had a trend of ' ductile failure ' and the dynamic shear modulus of mixture decreased. The nonlinear coordinated variation could be found between the damping ratio and rubber content with a characteristic threshold of 40</p><p>%. The mechanical properties of rubber particles may be influenced by changing the type of ' skeleton structure ' inside the sample.</p>
Publisher
International Association for Bridge and Structural Engineering (IABSE)
Reference20 articles.
1. Chen B, Zheng D, Xu R, et al. Disposal methods for used passenger car tires: One of the fastest growing solid wastes in China. Green Energy & Environment, 2022, 7(6):1298-1309.
2. Lin J F, Dai Y, Huang X W, et al. The Status of Waste Tire Treatment and Resource Utilization. Industrial Safety and Environmental Protection, 2019, 45(09): 84-87. (in Chinese)
3. Zhang T, Cai G, Liu S, et al. Laboratory observation of engineering properties and deformation mechanisms of cemented rubber sand mixtures. Construction & Building Materials, 2016, 120(sep.1): 514-523.
4. Ding Y, Zhang J, Chen X, et al. Experimental investigation on static and dynamic characteristics of granulated rubber sand mixtures as a new railway subgrade filler. Construction and Building Materials, 2021, 273(3): 121955.
5. Zornberg J G, Cabral A R, Viratjandr C. Behaviour of tire shred sand mixtures. Canadian geotechnical journal, 2004, 41(2):227-241.