| GL-B4型高效引气减水剂在混凝土中的抗冻性能试验研究 |
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| 引用本文： | 杭美艳,张锦霞,张凤霞.GL-B4型高效引气减水剂在混凝土中的抗冻性能试验研究[J].商品混凝土,2010(4). |
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| 作者姓名： | 杭美艳 张锦霞 张凤霞 |
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| 作者单位： | 内蒙古科技大学;包头市建设工程质量检测试验中心;包头市钢鹿建筑材料有限公司; |
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| 基金项目： | 内蒙古自然科学基金项目:200607010702; 内蒙古高等学校科学研究项目:NJ05068 |
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| 摘 要： | 本文首先研究了不同水灰比混凝土掺加引气剂后的抗冻性能,控制含气量4%左右时,随水胶比的降低,混凝土的抗冻性能明显增加。然后又对掺GL-B4高效引气减水剂的YC20和YC40混凝土的抗冻性进行了研究,实验得出YC40混凝土达到F300时,含气量达4.5%以上,强度不降低,耐久性能提高。而YC20则不同,因此,GL-B4型高效引气减水剂不适用于水胶比0.6以上的混凝土。
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| 关 键 词： | 引气剂 高效引气减水剂 强度 抗冻性 |
GL-B4-efficiency air-entraining water-reducing agent in concrete study on the freeze-thaw resistance |
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| Hang Meiyan,Zhang Jinxia,Zhang Fengxia.GL-B4-efficiency air-entraining water-reducing agent in concrete study on the freeze-thaw resistance[J].Ready-mixed Concrete,2010(4). |
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| Authors: | Hang Meiyan Zhang Jinxia Zhang Fengxia |
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| Affiliation: | Hang Meiyan1,Zhang Jinxia2,Zhang Fengxia3(1.School of Architecture & Civil Engineering,Inner Mongolia University of Science & Technology,Baotou,014010,China,2.Baotou City Construction Engineering Quality Inspection , Test Center,3.Deer Baotou Steel Building Materials Co.,Ltd,China) |
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| Abstract: | In this paper,the frost resistance on different water-cement ratio of concrete after the air-entraining agent admixture.When the gas is controlled about 4%,with the lower water-cement ratio,freeze-thaw resistance of concrete is increased significantly.And then the frost resistance of YC20 and YC40 concrete which are mixed in efficient air-entraining water-reducing agent were studied,the experiment results that when the concrete YC40 reached F300,gas content reached more than 4.5%,and the strength without re... |
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| Keywords: | Air-entraining agent Efficient air-entraining water-reducing agent Strength frost resistance |
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