Hydration Properties and Sulfate Attack of Composite Cement Mixed with High Titanium Slag

摘要

This paper was analyzed the hydration properties of cement mixed with different amounts of high titanium slag, focuses on the hydration products, and sulfate attack. By the way of single-doped and composite-doped, it was studied the sulfate attack in the cases of different proportions of the cement, cured in sodium sulfate solution, and compared with curing conditions of water. The results show that high titanium slag will not adversely affect the types of hydration products in cement;;the degressive peak value of C-H in hydration products changes with the increased amount of high titanium slag mixed, which would weaken the attack by sodium sulfate solutions are presented in this paper;;the way of compositely mixing a certain amount of other admixtures (furnace slag, fly ash and limestone) not only does not reduce the mechanical properties of cement, but also improves its performance on sulfate attack, according to the intensity changes of cement, the decrease of total porosity, and the changing of pore structure.