The strengthening mechanism of titanium contained blast furnace slag in concrete was studied by XRD,DTA,SEM and by determining the combined water content of hydration.The experiment results show that if the ground fine titanium contained blast furnace slag is mixed in concrete as blending material it can accelerate the hydration rate of cement,produce "the secondary reaction",help concrete form microcosmic self-compact system,increase the concrete strength.When mixing right amount of activating agent in con...