Distributed models of self-stress value in textile-reinforced self-stressing concrete

Self-stressing concrete and textile are combined to form a new composite material, namely, textile reinforced self-stressing concrete (TRSSC), which can improve the crack resistance of concrete structures under service loading. First, the basic mechanical properties of self-stressing concrete and fiber bundles are characterized. Second, all load-deformation curves influenced by the type of matrix and Tex of bundles are obtained through uniaxial tension test of the composite sheets. Results indicate that the cracking load and self-stress of TRSSC increase with the expansion of the matrix and Tex of fiber bundles. However, this phenomenon is not observed in normal concrete. Furthermore, the distributed model of self-stress in the matrix is deduced as a quadratic function. Specific analytical functions are assessed through compound material mechanics theory. Finally, beams with TRSSC are subjected to bending test. The cracking loads of the beam are consistent with the theoretical analytic solutions. (C) 2016 Published by Elsevier Ltd.