粘土矿物成分对聚羧酸减水剂吸附性能的研究  

Mechanism Research of Clay Mineral Composition on the Adsorption Performance of Ploycarboxylate Superplasticizer

作　　者：廖国胜[1] 何正恋[1] 刘佩[1] 

机构地区：[1]武汉科技大学,武汉430065

出　　处：《硅酸盐通报》2015年第1期227-231,共5页Bulletin of the Chinese Ceramic Society

基　　金：湖北省自然科学基金(2010CDZ062)

摘　　要：劣质砂石料中的含泥对聚羧酸减水剂的性能具有强烈的抑制作用,表现为混凝土坍落度损失快,工作性能变差等。通过对粘土中蒙脱石、伊利石、高岭石等粘土矿物成分的砂浆流动度和吸附量随时间变化规律的研究,表明蒙脱石对聚羧酸减水剂的吸附能力最强。从分析矿物的晶体结构上探讨了粘土矿物成分对聚羧酸减水剂吸附的作用机理。The mud in inferior dinas has strong inhibition on the performance of ploycarboxylate superplasticizer,characterized by concrete slump loss fast,poor work performance. By researching the change law with time of mortar fluidity and the adsorbing capacity of montmorillonite,illite and kaolinite clay mineral composition in clay,showing that montmorillonite has the strongest adsorption capacity of ploycarboxylate superplasticizer. From analyzing the crystal structure of clay minerals to discuss the adsorption mechanism on the properties of ploycarboxylate superplasticizer.

关 键 词：粘土矿物 聚羧酸减水剂 砂浆流动性 吸附量 

分 类 号：TU528[建筑科学—建筑技术科学]