EXPERIMENTAL INVESTIGATION ON THE USE OF CRUMB RUBBER AS PARTIAL REPLACEMENT OF COARSE AGGREGATE IN CONCRETE INCORPORATING CEMENT REPLACEMENT MATERIALS

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Abstract

Concrete is a material widely used in building construction, which has several characteristics, including its ease of casting and high compressive strength. Concrete mixed with scrap used tires is expected to reduce the density of concrete and produce low-cost concrete. While waste from used tire material is very easy to find, this material is difficult to decompose naturally. This study aims to investigate the effect of using crumb rubber as a partial substitution of coarse aggregates to mechanical properties of concrete incorporating cement replacement materials, such as fly ash and silica fume. Test specimens are cylinders with a diameter of 15 cm and a height of 30 cm, with variations in the addition of the crumb rubber by 5%, 10%, 15%, and 20% of the volume of coarse aggregate. The target of concrete quality (f'c) is 25 MPa at the age of 28 days. The crumb rubber concrete is tested for slump, compressive strength, and tensile strength. The results show that the slump of crumb rubber concrete decreases with the increase in crumb rubber content. In addition, the use of crumb rubber as partial replacement of coarse aggregate in normal concrete, fly ash concrete, and silica fume concrete decreases the engineering properties such as compressive and tensile strength.

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APA

Fauzan, Putri, E. E., Evir, H. P., Agista, G. A., & Juliafad, E. (2023). EXPERIMENTAL INVESTIGATION ON THE USE OF CRUMB RUBBER AS PARTIAL REPLACEMENT OF COARSE AGGREGATE IN CONCRETE INCORPORATING CEMENT REPLACEMENT MATERIALS. International Journal of GEOMATE, 25(111), 246–253. https://doi.org/10.21660/2023.111.gxi399

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