孙 晨，丁 铸
孙 晨，丁 铸
Abstract: In order to study the effects of PVA fiber on properties of MPC, composite MPC with different dosage of PVA fiber was prepared to test the compressive strength, flexural strength, flexural properties, and the microstructure was analyzed by using XCT. The results showed that the addition of PVA fiber has a significant improvement on the flexural strength of MPC, but it has little effect on the strength of resistance. The addition of PVA fiber has a good improvement in flexural properties, and the ductility is significantly improved, which shows obvious bending hardening characteristics and can effectively improve the brittle failure characteristics of MPC. The microscopic analysis show that the PVA fiber is evenly distributed in uniform chaos, which can prevent the development of cracks.