固体废物焚烧处理技术在我国日益得到推广应用,这导致我国垃圾焚烧飞灰产量巨大.垃圾焚烧飞灰中含有浸出毒性较高的重金属,属危险废弃物.但飞灰中含有丰富的活性组分,可以作为合成材料的原料而加以综合利用.飞灰基土聚水泥作为一种新型碱激活胶凝材料,可以大大降低飞灰中重金属的浸出毒性,同时具有较高的抗压强度.本文在介绍土聚水泥聚合机理的基础上,从飞灰预处理、外加硅铝原料的添加、碱激发剂浓度和掺量、水灰比、骨料、养护条件等方面阐述了对飞灰基土聚水泥强度和重金属浸出毒性的影响,最后对飞灰基土聚水泥重金属浸出毒性方面研究提出了建议.
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