The use of tire rubber in the production of high-performance concrete

• Published in: Cerâmica Vol. 65; no. suppl 1; pp. 110 - 114
• Main Authors: Silva, F. M., Miranda Jr, E. J. P., Santos, J. M. C. Dos, Gachet-Barbosa, L. A., Gomes, A. E., Lintz, R. C. C.
• Format: Magazine Article
• Language: English
• Published: Sao Paulo Associacao Brasileira de Ceramica 01.01.2019; Associação Brasileira de Cerâmica
• Subjects: alternative materials; Compressive strength; Concrete; high-performance concrete; Mechanical properties; Modulus of elasticity; Retreading; Rubber; Sand; sustainability; Tires; Waste disposal; Water absorption
• ISSN: 0366-6913; 1678-4553; 1678-4553
• DOI: 10.1590/0366-6913201965s12598

The advances in concrete technology lead to the search for alternative materials that provide improvements in concrete properties while at the same time collaborating with sustainable practices in construction. In this study, the influence of the incorporation of waste tire rubber on the mechanical properties of high-performance concrete was discussed. The waste rubber from the tire retreading process was used in partial substitution of the fine aggregate (sand) in the percentages of 7.5%, 15% and 30% with respect to the mass of the sand. For the characterization of the concrete, the following tests were carried out: water absorption, void index, specific density, compressive strength, flexural tensile strength, modulus of elasticity and microscopy analysis. The incorporation of rubber as aggregate in high-performance concrete proved to be promising for the production of a structural concrete with special characteristics, besides collaborating with the proper disposal of waste tires.