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混凝土含气量对C50自密实钢管砼膨胀性能的影响
Influence of Air-content on Expensive Properties of C50 Expansive Steel Tube-Confined Concrete
【摘要】 分析研究了混凝土拌合物的含气量与膨胀性能的影响,通过混凝土配合比的设计和优选,制备出了满足泵送施工及各种设计要求的C 50微膨胀钢管混凝土,28 d弹性模量3.8×104M Pa以上,3 d龄期时开始加载后,持荷180 d后徐变系数为1.9。
【Abstract】 The C50 expansive steel tube-confined concrete meeting the various requirements of construction of pumping technique and construction design were prepared through anglicizing the influence of air-content of the fresh concrete on its expansion properties and designing and optimizing of concrete mix proportion.
【关键词】 钢管混凝土;
配合比设计与优化;
含气量;
膨胀率;
【Key words】 steel tube-confined concrete; design and optimization of concrete proportion; air-content; expensive ratio;
【Key words】 steel tube-confined concrete; design and optimization of concrete proportion; air-content; expensive ratio;
- 【文献出处】 国外建材科技 ,Science and Technology of Overseas Building Materials , 编辑部邮箱 ,2007年02期
- 【分类号】TU528.59
- 【被引频次】5
- 【下载频次】140