江西建材Issue(12)：68-69,72,3.
石灰石粉在混凝土中的应用研究
Research on the Application of Limestone Powder in Concrete
摘要
Abstract
Replacing some fly ash and cement in the concrete mix proportion with limestone powder and controlling the initial slump of concrete at(200±5)mm,the experiment was conducted to study the influence of limestone powder replacing fly ash and cement on the unit water consumption,additive dosage,compressive strength,slump,and expansion loss of concrete over time.The research results indicate that when using limestone powder to replace some fly ash or cement in the concrete mix proportion,it can effectively reduce the unit water consumption or additive dosage of concrete,and reduce the slump and expansion loss of concrete over time.However,when the dosage of limestone powder is too high,it will significantly reduce the early and late compressive strength of concrete.关键词
石灰石粉/粉煤灰/抗压强度/坍落度/扩展度Key words
Limestone powder/Fly ash/Compressive strength/Slumps/Extensibility分类
建筑与水利引用本文复制引用
王青发..石灰石粉在混凝土中的应用研究[J].江西建材,2023,(12):68-69,72,3.基金项目
江西省国资委科技创新专项《水泥基材料绿色高性能化和智能功能化共性关键技术及应用》. （）
