Models for predicting the density and compressive strength of rubberized concrete pavement blocks

The influence of rubber content within the range of 0–60% as the replacement for sand volume and water cement (W/C) ratio of (0.20–0.35) on the density and compressive strength of concrete pavement blocks (CPBs) was investigated. All the mixtures were proportioned with a fixed aggregate/cement ratio of 5.25. Based on the experimental results, the density and transformed compressive strength for rubberized concrete pavement blocks (RCPBs) were calculated by considering the dependent factors of rubber content and W/C ratio. Models derived based on the results from experimental work are proposed to predict the density and compressive strength of RCPBs.