LIFAC脱硫灰-粉煤灰新型复合掺合料及其混凝土性能研究  

Study on LIFAC desulfurization ash-fly ash compound admixture and the impact on the properties of concrete

作　　者：杨利香 李国友[2] 顾文飞 李玲玉[2] 

机构地区：[1]上海市建筑科学研究院建筑材料技术研究所,上海200032 [2]同济大学材料科学与工程学院,上海200092 [3]上海宝田新型建材有限公司,上海200942

出　　处：《新型建筑材料》2011年第12期56-59,共4页New Building Materials

基　　金：上海市科委项目(09-115);上海市科委科技项目(08DZ1201600)

摘　　要：通过采用机械粉磨、与粉煤灰复配方式对LIFAC脱硫灰进行改性,开发出一种新型复合掺合料,并研究了新型复合掺合料对混凝土性能的影响。结果表明,新型复合掺合料中脱硫灰与粉煤灰的最适宜质量比为3∶7;其活性指数、体积稳定性良好;新型复合掺合料用于混凝土具有较好的工作性、减水剂适应性、力学性能和耐久性。A new type of compound admixture was developed by modifying LIFAC desulfurization ash through mechanically grinding and blended with fly ash.And then,the impact of the new compound admixture on the properties of concrete is studied.The results indicate that the intensity activity and volume stability of the compound admixture are very excellent when proportion between LIFAC desulfurization ash and fly ash is 3∶7.On the other hand,the concrete made by compound admixture has good workability,good adaptability with water reducing agent,and excellent mechanical property and durability.

关 键 词：脱硫灰 粉煤灰 体积稳定性 复合掺合料 

分 类 号：TU528[建筑科学—建筑技术科学]