碱激发钢渣矿渣胶凝材料凝结硬化性能研究

发布时间：2019-02-13 13:37

【摘要】：通过对胶凝材料强度、水化热的测定和对水化产物种类及表观形貌的分析,探讨了缓凝剂和钢渣掺量对碱激发钢渣矿渣胶凝材料性能的影响,并对其水化特性进行了研究.结果表明:钢渣掺量为40%、矿渣掺量为60%时,外掺6%水玻璃激发剂和1%的K缓凝剂,所制得的胶凝材料的凝结时间和强度可以达到42.5R普通硅酸盐水泥的技术要求;碱激发钢渣矿渣胶凝材料的放热特性与碱激发矿渣胶凝材料类似,具有放热量小的特点;钢渣与矿渣组合有利于胶凝体系水化进程的发展,两者具有相互促进的作用.
[Abstract]:The effects of retarder and steel slag content on the properties of alkaline activated steel slag cementitious materials were discussed by measuring the strength, heat of hydration, and the types and morphology of hydration products. The hydration characteristics of the cement materials were also studied. The results show that the setting time and strength of the cementitious material can meet the technical requirements of 42.5R ordinary Portland cement when the steel slag content is 40 and the slag content is 60%, 6% sodium silicate activator and 1% K retarder are added in the outside. The exothermic properties of alkali activated steel slag cementitious materials are similar to those of alkali activated slag cementitious materials, and the combination of steel slag and slag is beneficial to the development of the hydration process of the cementing system.
【作者单位】：重庆大学材料科学与工程学院;
【基金】：国家自然科学基金资助项目(50972171) 科技部国际合作项目(2009DFR50450) 重庆大学大型设备开放基金资助项目(2013121513)~~
【分类号】：TU528

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