Study on magnesium phosphate cement modified by steel slag

This paper mainly studied the influence of steel slag on the setting time, compressive strength, corrosion resistance, microstructure and pore structure of MPC. It was found that the setting time of MPC decreased with the increase of steel slag. The compressive strength was optimum with 15% content of steel slag. The addition of steel slag improved the corrosion resistance of MPC in low concentration alkali solution. With the increase of alkali solution concentration, the hydration product was decomposed, resulting in the increase of crack and harmful pore of MPC. (paper)