关键词: 引发剂;马来酸酐;橡胶混凝土;力学性能

Abstract: Properties of slump, compressive strength, dynamic modulus of elasticity, etc, of rubber concrete with waste rubber powder modified by MAH with different initiating agents, and analysis of the interface bonding with SEM. The results show that DCP, BPO as initiators were grafted on the rubber surface, but the effect of DCP was obvious, and the grafting rate was the highest. 28 d compressive strength of modified rubber concrete was better than the other two kinds of initiators. Maximum strength was 45 . 1 MPa when the best radio was 15%. There were a lot of needle and flake cement hydrates embedded in the rubber around modified rubber concrete interface when DCP as initiator, tied the two phase interfaces, the best effect.

Key words: initiating agents;MAH;rubber concrete;mechanical property