Investigation on the Tensile Behavior of Recycled Aggregate Concrete

This paper deals with the experimental investigation on the uniaxial tensile behavior of recycled aggregate concrete(RAC) with the same effective water/cement ratio but different recycled coarse aggregate(RCA) contents. 5-Groups of test results show that with an increase of the recycled coarse aggregate replacement percentage the peak tensile strain of the RAC is slightly increased whereas the tensile strength and the tangent modulus of the RAC are decreased.At the end of this paper,several equations related to the axial tensile properties as well as the tensile stress-strain relationship are proposed and recommended based on the regress analysis.