土壤聚合物固化飞灰与水泥固化的比较研究  

Research into the Comparison between Geopolymer Solidification Fly Ash and Cement Solidification Fly Ash

作　　者：金漫彤[1,2] 董海丽[2] 楼敏晓[3] 王连军[1] 

机构地区：[1]南京理工大学化工学院,南京210094 [2]浙江工业大学生物与环境工程学院,杭州310032 [3]中国汉嘉设计集团股份有限公司,杭州310005

出　　处：《硅酸盐通报》2008年第5期904-908,共5页Bulletin of the Chinese Ceramic Society

基　　金：浙江省自然科学基金(Y504030);浙江省科技厅重点计划资助(2006c23074)

摘　　要：本文分析了焚烧飞灰的主要化学组成,对土聚物固化城市垃圾焚烧飞灰和水泥固化飞灰的效果进行了实验研究和比较,探讨了土壤聚合物固化垃圾焚烧飞灰的机理。结果表明,焚烧飞灰主要包括Ca、Cl、Si、Al、K、S、Na等,重金属包括Zn、Pb、Cu、Cd和Cr等。在相同的条件下,土聚物固化飞灰后固化体的抗压强度明显高于水泥固化体,且表现出早期抗压强度高的特点,固化体重金属的浸出毒性远低于国家有关浸出毒性标准。Chemical composition of fly ash has been analyzed. Experiments have been performed to analyze the effect of cement solidification with fly ash and geopolymer solidification with fly ash. The result shows that the main elements of fly ash was Ca,Cl,Si,Al,K,S and Na,and many heavy metals such as Zn,Pb,Cu,Cd and Cr can be found in fly ash. At the same conditions,the compressive strength of geopolymer solidification with fly ash is higher than cement solidification with fly ash. Geopolymer solidification with fly ash has high early compressive strength. The leaching toxicity of heavy metals after solidification was generally lower than that of the national standard.

关 键 词：土壤聚合物 水泥 飞灰 固化 

分 类 号：P619.231[天文地球—矿床学]