低温养护条件下高延性磷酸镁水泥基复合材料力学性能试验研究

In this paper present about the mechanical properties of Magnesium phosphate cement (MPC) effect of low temperature 0 oC on MPC material was analyzed. Uses the unique properties of MPC, blends PVA fiber to prepare high ductility magnesium phosphate cement-based composite material with excellent performance, and carries out the contents of fly ash, sand to binder mass ratio (S/B), water to binder mass ratio (W/B) on the workability, compressive strength, and tensile properties of the composite. MPC based engineered cementitious composite (MPC-ECC) was develop. The test of MPC-ECC have the tensile strain capacity ranging from 0.96% to 2.22% and tensile strength about 2 MPa. The results explain the influence of fly ash to the tensile strain capacity and it can improve the performance of MPC-ECC material under low temperature curing.