The Research and Application of Pumping Ultra-Early Strength Concrete

机译：泵浦超早强混凝土的研究与应用

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With the gob-side entry retaining technology in coal mining project, the materials research of backfill for mine gateway side and development to become the focus of attention. This study is based on the need of Jining well to adopt 42.5R portland cement, Tj-1 early strength agent, Tj-1 super plasticizer, prepared from 8 hours to form removal, 16 hours strength of up to 6.2MPa, 24 hours strength of 12MPa, 28 day strength to 43MPa, and the construction of super-excellent early strength pumping concrete, and obtained satisfactory results through engineering.

机译：随着煤矿矿业项目中的戈布 - 侧进入保留技术，矿山网关的回填材料的研究成为关注的焦点。本研究基于济宁井的需要采用42.5R波特兰水泥，TJ-1早期强度剂，TJ-1超塑性剂，制备8小时以形成去除，16小时突出高达6.2MPa，24小时强度12MPa，28天的强度至43MPa，以及超优秀早期泵浦混凝土的构建，通过工程获得满意的结果。

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《International Conference on Structures and Building Materials》|2011年||共4页
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作者
Yuezhong Lin; Dongcai Lin;
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中图分类 TB3-532;
关键词
Ultra-Early-Strength; Concrete; Pumping;

机译：超早强;混凝土;泵送;

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The Research and Application of Pumping Ultra-Early Strength Concrete

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