The Properties of Waste Rubber Tires in Increasing the Damping of Masonry Wall Structure

Abstract

The accumulation of waste rubber tires causes environmental problems, due to most of them cannot be recycled into new tires. Recently, this waste is gradually used as a material replacement in civil engineering such as in increasing damping properties. This study investigates the physical and mechanical properties of waste rubber tires including density (ρ), ultimate tensile strength (σ), elongation at break, hardness (Shore A), modulus of elasticity (E), and shear modulus (G). The specimens used were coded as A, B, C, and D to represent specified brand name. The testing method referred to ISO standards and was carried out in the laboratory of Center for Leather, Rubber, and Plastics (CLRP), and the structural laboratory of Department of Civil Engineering and Environmental, Gadjah Mada University, Yogyakarta, Indonesia. The result shows that the density of all brands is nearly the same which is around 1.1 gr/cm3. The A rubber tire is indicated as the best damping properties since it has the lowest value on tensile strength, hardness, modulus of elasticity and shear modulus. However, the elongation at break is the highest value, compared to the other specimens. B rubber tire shows hard rubber, while C and D are high strength rubber. Therefore, B, C, and D rubber tires are appropriate to be used as barrier supports which must be able to withstand large forces, while the damping is not a priority.

A Case Study of Multifunctional Non-Pneumatic Tire Design for the Validation of Meta-Level Design Parameter in Domain Integrated Design (Did) Method

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Sustainable Manufacturing Process Applied to Produce Waste Polymer-Polymer Matrix Composites

“…Adding a mixture of waste PVC and waste tire as compared with previous specimens 2-7 led to improve hardness (specimens 8-9), which was also still lower than the hardness of the pure specimen of polyester and hardener (specimen 1), as shown in Table 2. The hardness of the specimens that included the waste tire is harder than that of the specimens that included waste PVC such specimen 6 vs specimen 2 since rubber tires can withstand significant pressure because of their complex properties (Faizah et al, 2019). Because the modulus of elasticity is directly proportional to the Shore D hardness, the behavior of specimens concerning the modulus of elasticity will be similar to their behavior in terms of Shore D hardness.…”

Use of Waste Tires as Transverse Reinforcement and External Confinement in Concrete Columns Subjected to Axial Loads

“…where f t is the tensile strength of a tire's rubber at yield, MPa. The tensile strength of waste tire rubber is around 10.6 to 14.4 MPa [38]. The tensile strength of the rubber compound in tires is around 16.5 to 21.2 MPa [39].…”