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Experimental study on dynamic characteristics of rubber sand mixtures

 Experimental study on dynamic characteristics of rubber sand mixtures
Author(s): , , , ,
Presented at IABSE Congress: Engineering for Sustainable Development, New Delhi, India, 20-22 September 2023, published in , pp. 183-190
DOI: 10.2749/newdelhi.2023.0183
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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...
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Bibliographic Details

Author(s): (College of Civil Engineering, Fuzhou University, Fuzhou, China)
(College of Civil Engineering, Fuzhou University, Fuzhou, China)
(College of Civil Engineering, Fuzhou University, Fuzhou, China)
(College of Civil Engineering, Fuzhou University, Fuzhou, China)
(College of Civil Engineering, Fuzhou University, Fuzhou, China)
Medium: conference paper
Language(s): English
Conference: IABSE Congress: Engineering for Sustainable Development, New Delhi, India, 20-22 September 2023
Published in:
Page(s): 183-190 Total no. of pages: 8
Page(s): 183-190
Total no. of pages: 8
DOI: 10.2749/newdelhi.2023.0183
Abstract:

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

%. The mechanical properties of rubber particles may be influenced by changing the type of ' skeleton structure ' inside the sample.

Keywords:
Damping Ratio rubber sand mixture waste tire backbone curve dynamic shear modulus