碱矿渣水泥石碳化产物研究  

Carbonation Products of Alkali-activated Slag Cement

作　　者：何娟[1] 何俊红[2] 

机构地区：[1]西安建筑科技大学材料与矿资学院,西安710055 [2]宝鸡文理学院数学系,宝鸡721013

出　　处：《硅酸盐通报》2015年第1期90-94,共5页Bulletin of the Chinese Ceramic Society

基　　金：陕西省教育厅自然科学专项项目(2013JK0923);陕西省自然科学基金资助项目(2013JQ6015);西安建筑科技大学科技基金项目(JC1311)

摘　　要：碱矿渣水泥水化产物不同于硅酸盐水泥,会产生不同的碳化行为。以水玻璃与NaOH为碱组分制备碱矿渣水泥石,采用X-射线衍射（XRD）、红外光谱（FT-IR）与综合热分析（TG-DSC）研究了碱矿渣水泥石的碳化产物。结果表明：碱矿渣水泥石碳化生成的CaCO3的存在形式主要为方解石,球霰石和文石含量较少,随碳化龄期延长,文石与球霰石含量增加;以模数1.0-1.5的水玻璃为碱组分的碱矿渣水泥石碳化后,出现钠的碳酸盐结晶相;碱矿渣水泥石碳化脱钙后生成富硅的C-S-H凝胶,C-S-H凝胶的聚合度增加。Hydration products of alkali-activated slag cement is different from Portland cement,so it exhibits different carbonization behavior. Alkali-activated slag cement stone（ AASS） prepared with water glass and Na OH was used to investigate the carbonation products by using XRD,FT-IR and TG-DSC analysis. The results show that as carbonation products,Ca CO3 exists mainly in the form of calcite and the content of vaterite and aragonite is less. With the process of carbonation,vaterite and aragonite increase.When water glass with module of 1. 0-1. 5 is used as activator,carbonate of sodium is detected in carbonation products. After carbonation,C-S-H gel decalcifies and turns into C-S-H gel rich in silicon and polymerization degree of C-S-H gel increases.

关 键 词：碱矿渣水泥 碳化产物 方解石 

分 类 号：TU528[建筑科学—建筑技术科学]