Drying shrinkage model for recycled aggregate concrete accounting for the influence of parent concrete

The drying shrinkage of recycled aggregate concrete (RAC) varies considerably owing to the extensive sources of parent concrete from which recycled aggregates are obtained. This paper proposes a theoretical drying shrinkage model for RAC considering the properties of the parent concrete, including its service time and strength. To achieve this, shrinkage tests were conducted on 60 concrete specimens over 360 days. Five types of parent concrete...