| 地下工程C60～C90自密实、自防水混凝土试验研究 |
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| 引用本文： | 刘垍荧,王硕太,刘庆涛,康笑楠,朱志远,杜宜霖,罗鹏.地下工程C60～C90自密实、自防水混凝土试验研究[J].混凝土,2007(5):86-88. |
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| 作者姓名： | 刘垍荧 王硕太 刘庆涛 康笑楠 朱志远 杜宜霖 罗鹏 |
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| 作者单位： | 空军工程大学,工程学院,陕西,西安,710038 |
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| 摘 要： | 针对某地下工程需配制C60～C90高强度自密实、自防水混凝土的要求.通过采用掺粉煤灰、膨胀剂和高效减水剂,优化配合比设计,并检测其流动性、抗离析性和自填充性,限制膨胀率和限制干缩率、静水压力和氯离子渗透性.结果表明复合外掺剂有效地提高了混凝土流动性,增加混凝土的密实度,防止混凝土收缩开裂,提高了混凝土的抗渗性能,满足地下工程结构自密实自防水的设计要求.
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| 关 键 词： | 地下工程 自密实混凝土 自防水 复合外掺剂 地下工程 自密实 自防水混凝土 试验 研究 concrete Research 优化配合比设计 工程结构 抗渗性能 收缩开裂 密实度 增加混凝土 复合外掺剂 结果 氯离子渗透性 静水压力 干缩率 限制膨胀率 填充性 |
| 文章编号： | 1002-3550-（2007）05-0086-03 |
| 修稿时间： | 2006-11-24 |
Research of self-compacting and self-water proofing concrete from C60～C90 of underground project |
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| LIU Ji-ying,WANG Shuo-tai,LIU Qing-tao,KANG Xiao-nan,ZHU Zhi-yuan,DU Yi-lin,LUO Peng.Research of self-compacting and self-water proofing concrete from C60～C90 of underground project[J].Concrete,2007(5):86-88. |
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| Authors: | LIU Ji-ying WANG Shuo-tai LIU Qing-tao KANG Xiao-nan ZHU Zhi-yuan DU Yi-lin LUO Peng |
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| Abstract: | One underground project require C60~C90 high strength self-compacting and self-water proofing concrete.According to mix fly ash,expansive admixture and high efficiency water-reducing admixture,optimize mix proportions design,and test its' liquidity,resist segregation and automatic thickness gauge fill,restrict expansive rate and restrict drying shrinkage rate,hydrostatic pressure and the penetrability of chloride-ion.The results suggest that compound mixture agent effectively improved the compactness and the mobility of concrete,reduced concrete shrinkage crack,improved the ability of concrete's anti-penetrability,it satisfied the design requirement of self-compacting and self-water proofing concrete. |
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| Keywords: | underground project self-compacting concrete self-water proofing compound admixture |
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