The state of the art regarding the long‐term properties of recycled aggregate concrete

Abstract

Abstract This paper reviews the long‐term properties of recycled aggregate concrete (RAC), including long‐term strength, shrinkage, creep, carbonation resistance, antifreeze resistance, impermeability, abrasion resistance, alkaline aggregate reactions, sulphate corrosion and fatigue behaviour. Most studies have shown that the long‐term properties of RAC are inferior to those of natural aggregate concrete (NAC), and some researchers have observed that the long‐term properties are better than those of NAC. RAC's long‐term properties are affected by many factors such as recycled coarse aggregate (RCA) replacement percentage, water‐cement ratio, mineral admixtures and mix proportions. The long‐term properties of RAC can be improved through better control of these factors. This paper will be helpful for a comprehensive understanding of and further research on RAC, and provides an important basis and references for the engineering applications of RAC.