Wear resistance of fast-track Type III Portland cement concrete

This study investigated the wear resistance of selected fast-track Type III Portland cement concrete (FTC) under early opening times (6, 8 hours) and at full maturity (28 days). The effects of varying Type III Portland cement content (386, 445, and 505 kg/m³), with and without an accelerating admixture, were analysed to assess wear depth and deterioration rate. These factors were examined across different opening-time categories and maturity duration. The coefficients of variation and abrasion index from the abrasion tests were also evaluated. Additionally, the correlation between abrasion resistance (wear depth) and bulk strength was explored at both early and maturity durations. Results indicated that the studied FTCs showed improved wear resistance and compressive strength with higher cement content, longer curing periods, and the addition of an accelerating admixture. Test results also revealed that cement content, curing time, and accelerating admixture influenced depth of wear more than compressive strength.