ABSTRACT
This study used recycled aggregate concrete for floor slabs, which are plane members with a large surtace area subject to drying, and added a drying shrinkage reducing agent to mitigate drying shrinkage. The relationship between use of this agent and the influence of drying shrinkage on cracking was investigated. The result found that, when a drying shrinkage reducing agent was added to recycled aggregate concrete-based floor slabs, not only were drying shrinkage cracks lessened but also post-yield strength against bending increased to give satisfactory bending properties. This suggests that recycled aggregate concrete could be used for members of reinforced concrete structures.
