doi:10.3850/GI092

ABSTRACT

One pollutants of environment is scrap tires and many researchers have investigated how to recycle them. A good method is to use these materials in civil engineering applications for example, improving the ground properties. Researches in this field are such widespread that ASTM in 1998 finally published a standard, D6270, in order to introduce these materials as a new construction material. Much research work has been done to acquire the stress-strain behavior and shear strength parameters of these materials. The main purpose of this research is to assess the stress-strain behavior and shear strength of a mixture of scrap tire crumbs, having diameter between 5 and 0.07 millimeter, and reinforced with scrap tire chips in 13 different dimensions. Large direct shear tests (30 × 30cm shear box) have been performed on the mixture with different percent of chips using various normal stresses. It has been found that adding scrap tire chips to scrap tire crumbs would increase the shear strength parameters considerably. It will be shown that waste tire shreds can reinforce waste tire chips.

Keywords: Scrap tire; shear strength; reinforcement; direct shear test; environment.

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