Modification of composite materials made of steel slag, flue gas desulphurization gypsum and fly ash
Modification of composite materials made of steel slag, flue gas desulphurization gypsum and fly ash
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发表时间：
2008
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通讯作者：
S. Hui-sheng
中科院分区：
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作者：
S. Hui-sheng
研究了钢渣对脱硫石膏-粉煤灰复合材料性能的影响。然后在复合材料中引入钢渣，并加入矿物掺合料（水泥和消石灰）对复合体系进行改性。在此基础上，研究了碱法和硫酸盐法两种传统的水泥基材料激发方法对水泥基材料性能的影响，并筛选出Na 2SO 4、CaCl 2、Al 2（SO 4）3·18 H2O和KOH等化学激发剂。利用XRD和SEM研究了水化产物的种类和结构。分析了水化反应及其过程。并对最佳复合材料的基本性能进行了测试。结果表明，该胶凝材料具有优良的性能。
The effect of steel slag on the properties of flue gas desulphurization gypsum (FGD)-fly ash (FA) composite was studied. Then steel slag was introduced to the composite and mineral additives (cement and hydrated lime) were used to modify the composite system. Based on this, the effect of two traditional ways of activating cement-based materials: alkaline activation and sulfate activation on the properties was also studied and the chemical activators such as Na2SO4, CaCl2, Al2(SO4)3·18H2O and KOH were chosen. XRD and SEM were used to study the kinds and configuration of the hydration products. Then the hydration reaction and its process were analyzed. Moreover, the basic property of the best composite were tested. The result showed that this kind of cementitious materials obtained excellent properties.