基于新规范的自密实混凝土配合比设计

On mix proportion design for self-compaction concrete based on new regulation

简要介绍了国内现有自密实混凝土配合比设计方法,经比较采用绝对体积法对在广东某临海环境中将使用的混凝土进行设计,试拌结果表明工作性满足新规范的要求,减水剂和粉煤灰均可改善拌合物扩展度。

The paper briefly introduces the design methods for the current mix proportional design of the self-compaction concrete in China, a- dopts the absolute volume method to design the concrete to be used in some offshore environment of Guangdong after the comparison, and proves by the trial mixing that the workability can meet the demands of the new regulation, and the water reducing agent and the fly ash can improve the slump flow of the mixture.