快速施工用高耐久性混凝土性能试验

针对海洋环境下快速施工用混凝土材料的技术需求,采用硫铝酸盐水泥和适量的矿渣粉和硅灰,并掺入专用的高性能减水剂和缓凝剂配制快速施工用高耐久性混凝土,并对其性能进行试验研究。结果表明,快速施工用高耐久性混凝土工作性良好、坍落度损失小,具有良好的抗氯盐侵蚀性能,并能满足泵送施工要求,可为海洋环境下快速施工提供一条有效的技术途径。

Performance experiment of high durability concrete for rapid construction

In view of technical requirements of concrete material for rapid construction under marine environment,we prepare the high durability concrete for rapid construction by using sulphoaluminate cement,proper slag powder and silica fume,and adding special high performance water reducer and retarder,and research its performance by the experiment.The results show that the high durability concrete for rapid construction has good workability,low slump loss and good chloride corrosion resistance,and satisfies the requirement of pumping construction.It can provide an effective technical way for rapid construction in marine environment.