少熟料钢渣水泥水化硬化机理的研究
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摘要
利用X射线衍射、差热分析、扫描电镜和孔结构分析等测试手段,对少熟料钢渣水泥在新型碱性复合激发剂作用下的水化特性进行了研究,并对其水化硬化机理进行了探讨。结果表明,在碱性复合激发剂M的作用下,当钢渣和矿渣掺量各为40%、熟料掺量为15%、石膏掺量为5%时,钢渣水泥的性能达到了国家标准42.5等级普通硅酸盐水泥的技术要求;少熟料钢渣水泥的水化过程,首先是外加剂和熟料的水化,然后在它们的共同作用下钢渣解离并水化。激发剂组分和一次水化产物,是决定少熟料钢渣水泥正常凝结和硬化的主要因素。
The hydration products of clinker-poor steel slag cement were analyzed and identified by means of XRD,DTA,SEM,and Mercury Proximate.Meanwhile,the mechanism of hydration and hardening of the cement was discussed in detail.The results show the properties of the clinker-poor steel slag cement,with a composition of steel slag 40%,blast furnace slag 40%,clinker 15%,gypsum 5% and composite alkali activators 2.5%,can measure up the stands of grade 42.5 ordinary Portland cement.The hydration process of the cement includes activators hydration,clinkers,hydration,steel slag dissociation and hydration.The normal setting and hardening of the cement depend on the components of the composite activators and the first hydration products of clinker.
The hydration products of clinker-poor steel slag cement were analyzed and identified by means of XRD,DTA,SEM,and Mercury Proximate.Meanwhile,the mechanism of hydration and hardening of the cement was discussed in detail.The results show the properties of the clinker-poor steel slag cement,with a composition of steel slag 40%,blast furnace slag 40%,clinker 15%,gypsum 5% and composite alkali activators 2.5%,can measure up the stands of grade 42.5 ordinary Portland cement.The hydration process of the cement includes activators hydration,clinkers,hydration,steel slag dissociation and hydration.The normal setting and hardening of the cement depend on the components of the composite activators and the first hydration products of clinker.
引文
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[4]张同生,刘福田,李义凯,等.激发剂对钢渣胶凝材料性能的影响[J].建筑材料学报,2008,4(11):469-474.
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[9]徐彬,邓国柱,张天石,等.碱激发钢渣水泥研究[J].重庆环境科学,1998(6):39-41.
[10]王春阳.建筑工程材料[M].北京:地震出版社,2001.
[2]李义凯,刘福田,周宗辉.钢渣微粉改性及其助磨剂实验[J].济南大学学报:自然科学版,2008,22:331-333.
[3]冷光荣,朱美善.钢渣处理方法探讨与展望[J].江西冶金,2005,25(4):44-47.
[4]张同生,刘福田,李义凯,等.激发剂对钢渣胶凝材料性能的影响[J].建筑材料学报,2008,4(11):469-474.
[5]Ahmad Monshi,Masoud Kasiri Asgarani.Producing Portland Cement from Iron and Steel Slags and Limestone[J].Cement andConcrete Research,1999,29:1373-1379.
[6]Cerulli T,Pistolesi C,Maltese C,et al.Durability of Traditional Plasters with Respect to Blast Furnace Slag-based Plaster[J].Cement and Concrete Research,2003,33:1375-1383.
[7]叶青,农登.关于钢渣吸附剂的研究[J].大众科技,2006(2):118-119.
[8]付兴华,杨春霞,张桂利,等.钢渣水泥性能与水化机理研究[J].山东建材学院学报,1996,10(4):7-13.
[9]徐彬,邓国柱,张天石,等.碱激发钢渣水泥研究[J].重庆环境科学,1998(6):39-41.
[10]王春阳.建筑工程材料[M].北京:地震出版社,2001.
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