作　　者： ; ; ; ;

机构地区： 韶关学院化学与环境工程学院

出　　处： 《武汉理工大学学报》 2011年第5期48-53,共6页

摘　　要： 不同来源转炉钢渣之间的胶凝活性差异较大,为研究开发出对其胶凝活性进行快速评价的方法,采用蒸发-冷凝法对不同来源钢渣中的化学活性组分进行了快速溶出提取试验,研究了其溶出特性与溶出机理,结合钢渣胶凝材料胶砂试验,系统分析了钢渣溶出特性与胶凝材料强度性能之间的关系。研究结果表明,各钢渣化学活性组分的溶出量差异显著,溶出过程符合由固膜扩散控制的收缩未反应核模型特征。钢渣的溶出特性与钢渣胶凝性能之间存在显著的线性关系,利用(CaO+Al2O3)溶出量等评价指标可快速地对不同来源钢渣的胶凝活性作出比较准确的评价。 There is greater difference among the cementitious activity of steel slag from different sources.To establish a rapid evaluation method of steel slag cementitious activity,dissolution experiments of steel slag chemical active components through evaporation-condensation method were carried out and the dissolution characteristics and mechanics was studied.The relationship between dissolution characteristics and cementitious activity was analyzed in combination with mortar strength.Results show that there exist significant differences amongst the amounts of chemical active dissoluted components.The dissolving process can be described by shrinking unreacted core model controlled by intra-paticle diffusion.The linear relationship between dissolution characteristics and cementitious behavior of steel slag is significant.Cementitious activity of steel slag from different sources can be evaluated rapidly by the dissolving quantity of（CaO＋Al2O3） and SiO2.

关 键 词： 钢渣 蒸发 冷凝法 化学活性组分 胶凝活性评价

领　　域： [建筑科学]