Performance of the cement matrix composite material with rubber powder

The effect of the deferent rubber content substituted for fine aggregate on the mortar performance was studied. The effects of the rubber coated with the coating materials on the mortar compressive strength, bending strength and impact work were discussed. The optimum rubber powder content and the suitable coating material were found. Through the electrical probe test-BEI, SEI and calcium ion distribution, and the slight crack and the interface between the rubber and cement matrix are analyzed. The results show that the rubber powder coated with the surface treatment materials A, B and C has the capability of absorbing a large amount of energy under the compressive and flexural load and the slight cracks of R-C were controlled and restrained.