Use of Styrene Butadiene Rubber (SBR) Polymer in Cement Concrete
Asaf Nawaz Khan
Abstract
Objectives: This research work was adopted to have the maximum strength of concrete mixed with styrene-butadiene rubber (SBR) and to know the effect of SBR on the fresh and hardened concrete. Methods/statistical analysis: The concrete samples were prepared to achieve targeted strength of 3000 lb/in2. In this experimental work, the mixture of concrete was prepared by adding 0%, 5%, 10%, 15%, and 20% of SBR polymer–cement ratio to check the properties of fresh concrete (slump test and compaction factor test), while rebound hammer test, ultrasonic pulse velocity test (UPV), compressive strength test, and tensile strength test were observed at 7th, 14th, and 28th days, respectively. Findings: Resultantly, the compressive strength and indirect tensile strength boosted by 16% and 13% blended with 15% of SBR polymer in concrete as compared to control concrete after 28th days, respectively. The workability of fresh concrete plummeted with a rise in the amount of SBR polymer in concrete. Application/improvements: Both the quality and high strength of concrete is improved by adding 15% of SBR in concrete. Keywords: Styrene-Butadiene Rubber (SBR), Additional Material, Increases Strength of Concrete.