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| 气孔结构对水泥混凝土抗盐冻性能影响的研究 | |
| 引用本文： | 沈化荣,卢小琳,高培伟,张辉,王珐玮,夏江涛.气孔结构对水泥混凝土抗盐冻性能影响的研究[J].混凝土,2012(8):8-9,13. |
| 作者姓名： | 沈化荣 卢小琳 高培伟 张辉 王珐玮 夏江涛 |
| 作者单位： | 1. 淮阴工学院土木工程系,江苏淮安223001;南京航空航天大学材料学院,江苏南京210016 2. 南京航空航天大学材料学院,江苏南京,210016 3. 吉林省交通科学研究所,吉林长春,130012 4. 淮阴工学院土木工程系,江苏淮安,223001 |
| 基金项目： | 西部交通项目，“863”国家高新技术项目 |
| 摘 要： | 参照CDF盐冻试验标准研究了气泡间距系数对水泥混凝土抗盐冻性能,研究结果表明:混凝土抗盐冻性能随气泡间距系数减小而迅速提高,并具有很好的相关性;当气泡间距系数在0.2 mm以下时,混凝土剥蚀量的下降幅度随气泡间距系数减小而减缓,控制气泡间距系数可很好地改善混凝土的抗盐冻性能。 |
| 关 键 词： | 混凝土 气泡间距系数 盐冻 含气量 |
Relationship between the air void system and frost-salt resistance of concrete |
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| SHEN Hua-rong , LU Xiao-lin , GAO Pei-wei , ZHANG Hui , WANG Fa-wei , XIA Jiang-tao.Relationship between the air void system and frost-salt resistance of concrete[J].Concrete,2012(8):8-9,13. | |
| Authors: | SHEN Hua-rong LU Xiao-lin GAO Pei-wei ZHANG Hui WANG Fa-wei XIA Jiang-tao |
| Affiliation: | 1(1.Department of Civil Engineering,Huaiyin Institute of Technology,Huai’an 223001,China;2.College of Material Science and Technology,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China;3.Jilin Traffic Science Institute,Changchun 130012,China) |
| Abstract: | The frost-salt resistances of concrete were investigated according to the CDF method effects of air void systems introduced by different air entraining agent.The results showed that the frost-salt resistance of concrete increased with the decreasing of spacing factor and increasing of air content.The speed of frost-salt scaling of concrete was reduced when the spacing factor less than 0.200 mm.The results also showed that the frost-salt resistance of concrete of different surface exist difference.The frost-salt resistance of concrete can improve by controlling of the spacing factor not the air content. |
| Keywords: | concrete air void spacing factor frost-salt scaling air content |
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