磷渣粉的火山灰活性激发及分析  

Pozzolanic activation and analysis of phosphorus slag powder

作　　者：陈霞[1,2] 杨华全[1,2] 张建峰[1,2] 高志扬[1,2] 

机构地区：[1]长江水利委员会长江科学院,湖北武汉430010 [2]三峡地区地质灾害与生态环境湖北省协同创新中心,湖北宜昌443002

出　　处：《混凝土》2015年第10期82-86,共5页Concrete

基　　金：国家自然科学基金(51209022;51279017);中央级公益性科研院所基本科研业务费(CKSF2015030/CL)

摘　　要：分别采用机械与化学活化的方式对磷渣粉进行了活性激发,结合强度比与火山灰效应强度贡献率指标评价了不同细度磷渣粉的火山灰活性程度,基于抗压强度比较了硫酸盐与Ca（OH）2的化学激发效果,结合XRD分析了各激发体系的水化产物。试验结果表明,机械粉磨与掺入Na2SO4、CaSO4、Ca（OH）2均能在一定程度上激发磷渣粉的火山灰活性,机械粉磨时存在一个最佳细度（400 m2/kg左右）;化学激发时Ca（OH）的激发效果要优于Na2SO4,且Ca（OH）掺量在5%～10%范围内时激发效果最佳。Pozzolanic activation was conducted through mechanical and chemical methods.Specific strength and pozzalanic effect strength contribution rate was employed to evaluate mechanical activation effect while compressive strength was introduced to compare activation effect between sulfates and calcium hydroxide.Results indicated that,both mechanical and chemical reagents could activate phosphorus slag powder pozzolanic activity and the optimal fineness was around 400 m2/kg in terms of mechanical activation while Ca（ OH）2 had better activation effect than Na2SO4 with the best content ranging between 5%and 10%.

关 键 词：磷渣粉 火山灰活性 激发 强度 

分 类 号：TU528.04[建筑科学—建筑技术科学]