| 混凝土中含气量影响因素的研究 |
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| 引用本文： | 李兴翠,邓德华,何富强. 混凝土中含气量影响因素的研究[J]. 低温建筑技术, 2008, 0(1): 17-19 |
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| 作者姓名： | 李兴翠 邓德华 何富强 |
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| 作者单位： | 中南大学土木建筑学院,湖南,长沙,410075 |
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| 摘 要： | 通过实验分析了引气混凝土中含气量的若干影响因素,结果显示:相同引气剂掺量下,中热硅酸盐水泥的含气量要低于普通硅酸盐水泥;含气量与水灰比和砂率都是成正比关系,即水灰比越高含气量越大,砂率越高含气量也越大;随着粉煤灰含量的升高含气量逐渐降低;掺加引气剂的混凝土的最佳搅拌时间为3~5min。
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| 关 键 词： | 引气剂 含气量 影响因素 |
| 文章编号： | 1001-6864（2008）01-0017-03 |
| 收稿时间： | 2007-09-20 |
| 修稿时间： | 2007-09-20 |
STUDY ON FACTORS INFLUENCING AIR CONTENT OF AIR-ENTRAINED CONCRETE |
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| LI Xing-cui,DENG De-hua,HE Fu-qiang. STUDY ON FACTORS INFLUENCING AIR CONTENT OF AIR-ENTRAINED CONCRETE[J]. Low Temperature Architecture Technology, 2008, 0(1): 17-19 |
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| Authors: | LI Xing-cui DENG De-hua HE Fu-qiang |
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| Affiliation: | LI Xing-cui,DENG De-hua,HE Fu-qiang(School of Civil Engineering , Architecture,Central South university,Changsha 410075,China) |
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| Abstract: | This paper analyzes factors influencing air content of air- entrained concrete through experiments. Results show that with the same dosage of air - entraining agent, air content of moderate - heat Portland cement concrete is less than that of common Portland cement concrete; increment of water cement ratio and ratio of sand to aggregates can increases air content of concrete; with increased fly ash content in concrete, air content of concrete decreases;optimum mixing time of air- entrained concrete is 3 - 5 minutes. |
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| Keywords: | air - entraining agent air content factors |
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