Analysis of the incorporation of waste rubber from waste tires as fine partial aggregate in concrete

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Abstract

The worldwide production of tires grows due to the increase in the automobile industry, and it is
tough to dispose of waste tires as the availability and capacity of landfills decreases. Therefore, the
main objective of this study is to evaluate the performance of concrete with the replacement of fine
aggregate by rubber waste from waste tires. Therefore, a study of the dosage and molding of the
specimens in the dimensions of 10 x 20 cm was carried out, with replacement of the fine aggregate
(quartz sand) by 10 and 20 % of rubber residues, and the properties of the concrete were evaluated
by through the tests of Compression Strength, Tensile Strength by Diametral Compression, and
Determination of Water Absorption. The results allowed us to conclude that the replacement of
conventional fine aggregate by rubber residues promoted a reduction in the compressive and tensile
strength of concrete and increased water absorption. Therefore, treatment of these residues is
necessary since the concrete modification with tire rubber residues without prior treatment provided
a significant loss in strength.