碱激发锰渣矿渣胶凝材料的力学性能及水化过程研究

利用基于水玻璃形成的复合碱组分SN和少量硅酸盐水泥共同激发锰渣-矿渣体系,制备出碱激发胶凝材料,并对该胶凝材料的力学性能及水化过程进行了探讨。结果表明:水化3～7d内是该碱激发胶凝材料中锰渣与矿渣的适应性由劣向好转变的关键。水化初期(3d前),随着矿渣替代锰渣量增加,碱激发胶凝材料中生成水化产物的程度变慢,抗压强度降低;水化7d后,碱激发锰渣-矿渣胶凝材料中随着矿渣替代量的增加,石英(SiO2)被剥蚀解体量增多,体系的溶解-聚合程度逐渐提高,水化产物逐渐增多,化学结合水量逐渐增大,抗压强度逐渐提高。

Research on the Mechanical Property and Hydration Process of Alkali-activated Manganese Slag and Slag Cementitious Materials

With manganese slag and slag activated by compound alkali based on water glass and a little cement,alkali-activated cementitious materials can be made.And the mechanical property and hydration process of alkali-activated manganese slag and slag cementitious materials are studied.The results show that: at hydration age of 3d~7d,the adaptability of manganese slag and slag in alkali-activated cementitious materials can change from the poor to the better.With the percentage of slag increasing,which is instead o...