SBR-LATEX MODIFIED CONCRETE: A NEW AVENUE FOR CONCRETE MATERIALS, A REVIEW

— Use of polymer modified concrete as a construction material for structural applications in recent years is becoming gradually popular. Among the Polymers, Styrene-Butadiene Rubber (SBR)-latex modified concrete has proven strength and healthiness properties. From various Literature survey, we came to know that Styrene contributes rigidity and chemical resistance to the polymer, while butadiene contributes flexibility and elasticity. The random copolymerization of these two monomers in SBR results in a polymer with a wide range of properties, including good abrasion resistance, low-temperature flexibility, and high tensile strength. In different ratio of Styrene-Butadiene Rubber (SBR) latex-cement shows that compressive strength and flexural strength were determined at different ages. It has been observed that SBR latex has negative effect at early age while at 28 days, the addition of SBR latex in concrete results in enhancement of compressive strength as well as Flexural Strength. It can be used as an additive in concrete repair mortars, helping to improve the bond between existing concrete surfaces and the repair material, and reducing the risk of cracks forming in the repaired area, increases compressive and Flexural Strength compared with samples having old and new concrete without bonding layer .