Using the Recycled Crumb Tires in Roller-Compact Concrete Pavement (RCCP)

Roller-compact concrete pavement (RCCP) is known as a good alternative material for common asphalt pavements. They have more durability against environmental conditions. Common asphalts could be more deformable than RCCPs. It had greater capacity for energy dissipation and material toughness in comparison of RCCP. According to previous theories adding some pieces of recycled crumb tires could improve the quality of final product and made RCCPs more deformable and durable. In this paper the behavior of rubberized RCCPs were studied by different conditions. The experimental program was defined in order to study the relation of crumb-tire replacement percentage vs. some hardened concrete parameters like average modulus of elasticity, Poisson’s Ratio, Tensile & Compressive strength, water absorption and durability against the thermal conditions. Results of experiments proved that different behaviors could be recorded by different amounts of rubber replacement percentage.