| C40自密实混凝土抗渗性研究 |
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| 引用本文： | 赵庆新,孙伟,姜国庆,张杨.C40自密实混凝土抗渗性研究[J].工业建筑,2005,35(9):67-69. |
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| 作者姓名： | 赵庆新 孙伟 姜国庆 张杨 |
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| 作者单位： | 东南大学,材料科学与工程系,南京,210096;燕山大学,建筑工程与力学学院,秦皇岛,066004 |
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| 基金项目： | 国家自然科学基金重点资助项目（编号：59938170）. |
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| 摘 要： | 以干缩及变形“落差”指标并结合抗渗性试验方法,评价自密实混凝土的抗渗性能,系统研究了膨胀剂用量、水胶比、引气剂及养护制度对C40自密实混凝土干缩和抗渗性的影响规律。试验结果表明,收缩及抗渗性能受到水胶比及体系的自密实能力的共同影响,引气剂可以有效减少收缩,提高抗渗性,膨胀剂最佳掺量为30kgm3。
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| 关 键 词： | 自密实 混凝土 抗渗性 干缩 |
| 收稿时间： | 12 21 2004 12:00AM |
| 修稿时间： | 2004年12月21 |
RESEARCH ON THE IMPERMEABILITY OF C40 SELF-COMPACTING CONCRETE |
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| Zhao Qingxin,Sun Wei,Jiang Guoqing,Zhang Yang.RESEARCH ON THE IMPERMEABILITY OF C40 SELF-COMPACTING CONCRETE[J].Industrial Construction,2005,35(9):67-69. |
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| Authors: | Zhao Qingxin Sun Wei Jiang Guoqing Zhang Yang |
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| Abstract: | It was investigated that the effect of expansive agent dosage,water -binder ratio(W/B),air -entraining admixture and curing regime on the shrinkage and impermeability of C40 self -compacting concrete.The results showed that the airentraining admixture could greatly reduce shrinkage and enhance impermeability,the shrinkage and impermeability were affected by W/B and self -compacting competency,the optimum expanding admixture dosage was 30 kg/m +3.As for the reliability of self-compacting concrete in engineering,the shrinkage and deformation fall acted for a supplement of standard permeability test to estimate the impermeability of self-compacting concrete. |
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| Keywords: | self-compacting concrete impermeability shrinkage |
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