Combined Effect of Latex and Crumb Rubber on Mechanical Properties of Concrete for Railway Application

Crumb rubber incorporation is widely deemed to deteriorate the compressive strength of concrete. One dominant reasons for this reduction known as inferior bonding or weak interfacial transition zones (ITZ) between crumb and hardened cement paste. While Styrene-butadiene (SBR)latex being used a agent in concrete manufacturing, SBR latex usage holds potential compensate from incorporation. This study focuses on evaluating sole combined effect strength, one optimum combination modified rubberised mix (LMCRC) that had achieved 55.5 MPa 28 days’characteristic was chosen compare its impact resistance stress-strain response plain (PC) with similar characteristic strength. Experimental results showed both induced The w/c 0.32, replacement 20kg/m3, 3% additives outperformed control ratio 0.38 by 66.7% 293% 400mm span test 200mm test, respectively. Besides, higher Poisson’s ratio, strain which indicates more ductile behaviour compared