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1)  weakly-expensive concrete in tube
管内微膨胀混凝土
2)  micro expansion concrete of steel tubular
钢管微膨胀混凝土
1.
Introduce the test of mix proportioning of C50 micro expansion concrete of steel tubular of the bridge,research its limited expansive ratio,through experimentation with various factor,research the influence of concrete in the steel tubular which created by quantity of banding material,percentage of sand,different adscititious agents,the proportion of admixtures,etc.
介绍桥梁钢管拱C50膨胀混凝土配合比试验,研究其限制膨胀率等各项性能,通过多因素试验方法研究了胶材用量变化、砂率、不同外加剂、掺合料掺量等因素对钢管混凝土性能的影响,确定了C50钢管微膨胀混凝土的配合比。
3)  expansible concrete-filled steel tube
微膨胀钢管混凝土
1.
Experimental research on expansive ability and limit bearing capacity of expansible concrete-filled steel tube
微膨胀钢管混凝土膨胀性能与极限承载力试验研究
4)  micro-expansive concrete
微膨胀混凝土
1.
This paper introduced the design and selection of mix ratio of micro-expansive concrete,and studied material,mix ratio,properties,construction technology of concrete,then built up high-performance expansive concrete that satisfied the requirement of practical engineering large-span flat arch bridge,the corresponding construction measure are put forward.
通过配合比的设计和优选,对高性能微膨胀混凝土的原材料、配合比、混凝土的性能进行了试验研究,配制出满足设计要求的高性能微膨胀混凝土,并提出了现场施工的技术要求。
2.
Basing on a comprehensive analysis of the current research situation in China and abroad, main problems, the types of expansive agent and the corresponding expansive mechanism of micro-expansive concrete.
混凝土固有的弱点是容易产生裂缝,为此需要找出解决裂缝的办法,而微膨胀混凝土是解决裂缝问题最有效的办法。
5)  C50 micro-expansive concrete
C50微膨胀混凝土
1.
Practical example of the preparation of C50 micro-expansive concrete;
C50微膨胀混凝土配制实例
6)  micro-expansion concrete
微膨胀混凝土
1.
The C50 micro-expansion concrete is filled into the steel tube arches and webs of the main bridge of Lhasa River Bridge by pumping construction.
拉萨河特大桥主桥钢管拱钢管及腹板填充C50微膨胀混凝土,采用泵送法施工。
2.
Zhijing River Bridge is a concrete-filled steel tube deck arch bridge with a main span 430 m and the arch rings of the Bridge were filled with the C50 micro-expansion concrete by pumping.
支井河大桥为主跨430 m的上承式钢管混凝土拱桥,拱圈填充C50微膨胀混凝土,采用泵送施工。
补充资料:膨胀混凝土
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性质:用膨胀水泥或膨胀剂配制的水泥混凝土。分补偿收缩混凝土和自应力混凝土两大类。前者指在有约束的条件下,由于膨胀水泥或膨胀剂的作用能产生0.2~0.7MPa自应力的混凝土;自应力混凝土是指在约束的条件下,由于膨胀水泥或膨胀剂的作用能产生2.0~8.0MPa自应力的混凝土。膨胀混凝土除具有补偿收缩和产生自应力功能外,还具有抗渗性强、早期快硬、后期强度高(或超过100MPa)、耐硫酸盐能好等特点。适用于地下、防水、贮罐、路面、屋面、楼板、墙板、管道、接缝、锚固、大跨与高层建筑、水利工程、海水工程、冬季施工工程、抢修工程等。

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