| 试验条件对引气混凝土性能的影响研究 |
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| 引用本文： | 吕丽华,柳俊哲,李玉顺.试验条件对引气混凝土性能的影响研究[J].混凝土,2006(7):14-16. |
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| 作者姓名： | 吕丽华 柳俊哲 李玉顺 |
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| 作者单位： | 东北林业大学土木工程学院,黑龙江,哈尔滨,150040 |
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| 基金项目： | 交通部西部交通建设资助项目;黑龙江省科技攻关项目 |
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| 摘 要： | 正确表征混凝土含气量,发挥引气剂掺量的最大功效,一直是引气剂使用过程中需要解决的问题.本文通过配合比设计方法、含气量测定法及振捣时间对混凝土引气效果及含气量的影响研究,指出在混凝土配合比设计时采用假定容重法可获得良好的引气效果和工作性,及气压式测定法测得的含气量更接近于硬化混凝土的含气量和振捣时间选择的原则.
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| 关 键 词： | 引气剂 配合比设计 振捣时间 假定容重法 含气量测定方法 |
| 文章编号： | 1002-3550-（2006）07-0014-03 |
| 收稿时间： | 2006-05-25 |
| 修稿时间： | 2006-05-25 |
Influence of experiment condition on air entrained concrete |
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| LV Li-hua,LIU Jun-zhe,LI Yu-shun.Influence of experiment condition on air entrained concrete[J].Concrete,2006(7):14-16. |
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| Authors: | LV Li-hua LIU Jun-zhe LI Yu-shun |
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| Affiliation: | School of Civil Engineering, North-east Forestry University, Harbin 150040,China |
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| Abstract: | What we indicate air content of concrete and exert maximum efficacy of air-entraining agent parameter is always a question to need in using air-entraining agent. This paper will explain available and stable air entrained result of assumed density in mix proportion design of concrete and performance of concrete mixture. The experiment also prove that the air content of fresh concrete that are measured through air pressure mode is more contiguous to the air content of harden concrete, and the principli of selection on vibration time. |
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| Keywords: | Air-entrainingagent designing ofmix proportion vibration time assumed density method measurement of air content |
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