掺粉煤灰路缘石滑模混凝土配合比设计研究

Research on Mix Design of Slip-form Concrete for Curb with Fly Ash

采用热电厂II级粉煤灰,分别以0、10%、20%、30%四种不同掺量等质量替代水泥制备混凝土。分析了粉煤灰掺量与混凝土工作性能、力学性能的变化关系,确定了路缘石滑模施工混凝土中粉煤灰掺量在15%~20%之间时,各项性能满足施工需求,并将此设计结果应用于实体工程,效果良好。

The cement were replaced by TypeⅡfly Ash with four different dosages of 0,10%,20%,and 30%,respectively.The relationships between the content of fly ash and workability and mechanical properties of concrete were analyzed in this study.As a result,the curbstone slip forms construction requirements within the fly ash content of 15%~20%were determined.And this result was applied to the physical engineering with a good effect.