摘要
用TGA、测孔和SEM测试方法研究了粉煤灰在不同温度和不同碱度环境下的活化机制、水化产物和微观结构 .研究表明 :粉煤灰-石灰系统在常温下养护 ,粉煤灰的反应能力较低 ,这是因为在Ca(OH) 2 存在条件下的活化很慢 ,只有提高养护温度或在碱和硫酸盐存在条件下才有利于结构的解体和水化产物的稳定 .
Active mechanism, hydrates and microstructure of fly ash were studied by TGA and pore structure and SEM analysis. Results show that the reaction degree of fly ash is very low in the fly ash-lime system at room temperature, indicating that Ca(OH) 2 has low activation capability on fly ash under the condition. It is found that enhancing curing temperature, increasing alkalinity and introducing sulfate are effective to break the structure of fly ash and to stabilize the hydrates.
出处
《硅酸盐学报》
EI
CAS
CSCD
北大核心
2000年第6期523-523,共1页
Journal of The Chinese Ceramic Society
基金
国家建材局水泥基材料科学重点实验室资助
浙江大学博士后基金提供资助