Hydration of alinite cement produced from soda waste sludge
Hydration of alinite cement produced from soda waste sludge
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DOI：
10.1016/j.conbuildmat.2017.12.196
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发表时间：
2018-03
影响因子：
7.4
通讯作者：
Gültekin Ozan Uçal;Mahdi Mahyar;M. Tokyay
中科院分区：
文献类型：
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作者：
Gültekin Ozan Uçal;Mahdi Mahyar;M. Tokyay
阿利尼特水泥是一种替代性的无机、低能量粘结材料。研究了以纯碱废渣为原料制备的阿利尼特水泥的水化特性。通过X射线粉末衍射和扫描电子显微镜研究了浆料的微观结构。还测定了水化热和抗压强度值。观察到C-S-H凝胶和类似于Friedel盐的氯铝酸钙水合物的形成。阿利尼特水泥的诱导期约为15-20分钟，与波特兰水泥不同，在此期间水化实际上并未停止。当阿利尼特水泥中加入12%的石膏时，抗压强度增加。
Alinite cement is an alternative inorganic, low-energy binding material. This experimental study investigated hydration characteristics of alinite cement which was produced by using soda waste sludge as a raw material. Paste microstructures were studied by X-ray powder diffraction and scanning electron microscopy. Heat of hydration and compressive strength values were also determined. Formation of C-S-H gel and calcium chloroaluminate hydrates which resemble Friedel’s salt was observed. Induction period of alinite cement was around 15–20 min and unlike Portland cement, hydration did not practically stop during this period. Up to 12% gypsum addition to alinite cement resulted in increased compressive strength.