Damage mechanisms and mechanical properties of layer-bonded scrap tire rubber pads
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(1.School of Civil Engineering and Architecture, Xinjiang University, Urumqi 830046, China; 2.Xinjiang Key Laboratory of Building Structures and Earthquake Resistance, Urumqi 830046, China)

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TU375

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    Abstract:

    To promote the application of isolation technology in low-rise village buildings, a low-cost and easy-to-produce layer-bonded scrap tire rubber pads (LBSTP) is developed. Three types of high-toughness bonding agents were selected to reinforce the scrap tire rubber pads (STP) through interlayer bonding. Bonding failure tests and mechanical performance tests were conducted to observe the failure pehomena of bonding delamination and shear. Based on the bonding failure mehcanisms, the mechcanical properties of LBSTP were analyzed. Results show that the V-SC2000 adhesive has the highest strength but the lowest ductility, while the Yuzhu adhesive has the lowest strength but the best ductility, corresponding to the tensile bonding failure phenomena observed at the corners of LBSTP during the shear test. The LBSTP-2 bonded with Weili-801 adhesive shows a significantly higher vertical ultimate bearing capacity compared to other supports. The ultimate shear strain of LBSTP-2 is 150%, which is a 50% increase over the STP, indicating improved energy dissipation and repositioning capabilities. The LBSTP exhibits excellent mechanical properties, and the research findings provide theoretical references for the application of waste tire shock absorbers in isolation technology for village buildings.

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History
  • Received:May 28,2024
  • Revised:
  • Adopted:
  • Online: June 10,2025
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