Influence of addition of butadiene copolymer and modified styrene on the mechanical behavior of a sand

Butadiene-styrene copolymer (SBR) is an elastomer composed of 75% butadiene and 25% styrene widely used in the automotive industry tire production. This can be produced from two polymerization processes: emulsion or solution polymerization. paper presents mechanical behavior a polymer reinforced sand compared to pure sand. Direct shear tests were performed on specimens with addition modified butadiene-styrene (XSBR). The polymeric had 10% moisture content, 50% relative density, water-polymer mass ratios 1:1, 1:2, 1:4, no curing time, times 48, 72, 96, 576, 720 h. Improvements verified strength parameters addition, while comparing parameters, showing that improvement soils polymers satisfactory for application geotechnical works, such as: embankments soft soils, shallow foundations slope stability.