江西建材Issue(10)：22-24,30,4.
粉煤灰在碱激发胶凝材料中的化学反应路径与性能研究
Research on the Chemical Reaction Pathways and Properties of Fly Ash in Alkali-activated Cementitious Materials
Wang Wucheng1
作者信息
- 1. Guangdong Engineering Construction Supervision Co.Ltd.,Guangzhou,Guangdong 510100
- 折叠
摘要
Abstract
To reveal the reaction mechanism and performance characteristics of fly ash in the alkali-activated cementitious system,the chemical reaction process and long-termdurability evolution law of the material under different fly ash dosages were analyzed by XRD test,carbonization depth test and unconfined compressive strength test.The results show that the reaction between fly ash and alkaline solution continuously generates silicoaluminate gel phase,and the generation amount increases exponentially with the reaction time.With the decrease of fly ash content and the increase of calcium carbide slag content,the carbonization depth of the specimens decreased and increased respectively from 7 to 21 days and 28 days.The surface pH value decreased approximately linearly.The compressive strength first increases and then decreases.Therefore,by controlling the dosage of fly ash,it is possible to achieve a coordinated improvement in carbon reduction and durability while ensuring mechanical properties.关键词
粉煤灰/碱激发胶凝材料/化学反应路径/性能特征Key words
Fly ash/Alkali-activated cementitious materials/Chemical reaction pathway/Performance characteristics分类
建筑与水利引用本文复制引用
Wang Wucheng..粉煤灰在碱激发胶凝材料中的化学反应路径与性能研究[J].江西建材,2025,(10):22-24,30,4.
