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不同阴离子对固废基铝掺杂托贝莫来石的影响
作者:郭晓潞1 2  猛2 鲍梦燕2 
单位:(1. 同济大学 先进土木工程材料教育部重点实验室 上海 201804 2. 同济大学材料科学与工程学院 上海 201804) 
关键词:粉煤灰 城市垃圾焚烧飞灰 阴离子 铝掺杂托贝莫来石 微观形貌 孔径分布 
分类号:X773
出版年,卷(期):页码:2018,46(8):1059-1066
DOI:
摘要:
以粉煤灰(FA)和城市垃圾焚烧飞灰(MSWI)为主要原料,水热合成了固废基铝掺杂托贝莫来石,研究了不同外源阴离子对试样的抗压强度、反应产物、微观形貌和孔结构的影响。结果表明:外加剂的引入提高了固废基铝掺杂托贝莫来石的抗压强度,对于粉煤灰-水泥-生石灰-脱硫石膏(FA-C-T) 体系的增强效果从高到低依次为NaCl、NaOH、NaNO3,粉煤灰-城市垃圾焚烧飞灰-生石灰-脱硫石膏(FA-MSWI-T) 体系为NaOH、NaCl、NaNO3;不同阴离子的引入并没有改变铝掺杂托贝莫来石的矿物组成,只是使得各个矿物相的含量有所差异,表明3种阴离子均是络合在铝掺杂托贝莫来石的表面或者存在于层间;不同阴离子的加入使得托贝莫来石的微观形貌发生了改变,也细化了试样的孔结构。
基金项目:
作者简介:
参考文献:
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