EVALUATION OF THE MECHANICAL BEHAVIOR OF SOIL-CEMENT MIXTURES WITH ADDITION OF RUBBER WASTE

Abstract

Due to the evolution in per capita generation of waste in Brazil, studies that seek to improve the behavior, both mechanical and hydraulic, of soils through the addition of other elements such as, for example, lime, glass, and fibers in general, become interesting. Each material is studied to yield some improvement when composing with soils, and with rubber it is no different, especially since the production of tires in the country grows on a large scale. Thus, this paper proposes the study of mixtures of a clayey soil with rubber residues from unserviceable tires, with the introduction of cement as a binding material. For the study, the characterization of the studied materials (soil and rubber) was carried out and the mechanical behavior was evaluated using simple compression and traction in the diametrical compression of mixtures with the contents of 0% (reference line) 2% and 4% of crushed tire rubber, alternating between 2% and 4% incorporating cement. Based on the results obtained, the potential of using this type of material in geotechnical applications was observed and, for the case studied, the ideal content was 2% of crushed tire rubber content, along with 2% cement It is concluded that the use of tire waste can be carried out with the help of cement, obtaining resistance gain, thus being a way of minimizing the generation of unserviceable tires as a technical destination in the field of civil engineering.