硅酸盐通报2017，Vol.36Issue(1)：1-7,7.
不同掺量非晶态C12 A7/CaSO4·2 H2 O体系对OPC早期性能的影响及作用机理
Effects of Different Content of Amorphous C12 A7/CaSO4 ·2H2 O System on Early Properties of OPC and Mechanical Performance
摘要
Abstract
The effect of different content of amorphous C12 A7/CaSO4 · 2H2 O system on the early properties of setting time, fluidity and compressive strength of OPC was to investigate. Hydration products were tested by X-ray diffraction ( XRD ) and Scanning electron microscope ( SEM ) , and hydration process was analyzed by calorimetric method. The results show that C12 A7/CaSO4 ·2H2 O system used 5% of unit weight of cement, the mass ratio of C12 A7 and CaSO4 ·2H2 O was 1. 0 to 1. 0, the system accelerated the hydration of C3 S and C2 S, the hydration product C-S-H gel intertwined overlap to form the network structure which resulted the quick setting of cement paste, it also formed a large amount of acicular ettringite, the structure of hydration products was more and more compact, because of the ettringite filled with C-S-H gel each other, it improved the early strength of cement paste.关键词
非晶态C12 A7/钙矾石/早期抗压强度/水化Key words
amorphous C12 A7/ettringite/early compressive strength/hydration分类
资源环境引用本文复制引用
张江涛,王栋民,王奕仁,李文平..不同掺量非晶态C12 A7/CaSO4·2 H2 O体系对OPC早期性能的影响及作用机理[J].硅酸盐通报,2017,36(1):1-7,7.基金项目
国家自然科学基金(51572293) （51572293）
