Strengthening Road Pavement Concrete by Combining Crumb Rubber with SFRC Fibers

Abstract

Improving concrete pavement structure is a primary objective utilized to improve road pavement performance. The effect of crumb rubber and steel fiber is to protect and strengthen the strength of reinforced pavement concrete. In this study, experimental work was conducted utilizing a concrete model to examine reaction and resistance to the effect of carloads. The experimental laboratory program was divided into four groups: standard concrete and concrete with crumb rubber, SFRC, and combined crumb rubber and SFRC. the results observed that the addition of 10 to 20% crumb rubber and 40% SFRC to concrete with an fc of 30 MPa significantly improves the concrete’s behavior under the same conditions. Additionally, the crumb rubber and SFRC shear strength enhanced in comparison to concrete characteristics.

Keywords

• crumb rubber
• sfrc
• concrete pavement
• stress
• mechanical characteristics