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| 掺阻锈剂掺合料海水海砂混凝土护筋性探讨 | |
| 引用本文： | 周俊龙,欧忠文,江世永,陈乔,陈云,陈寒斌,许春霞.掺阻锈剂掺合料海水海砂混凝土护筋性探讨[J].建筑材料学报,2012,15(1):69-74. |
| 作者姓名： | 周俊龙 欧忠文 江世永 陈乔 陈云 陈寒斌 许春霞 |
| 作者单位： | 1. 四川省住房和城乡建设厅建筑管理处,四川成都,610041 2. 中国人民解放军后勤工程学院化学与材料工程系,重庆,401331 3. 中国人民解放军后勤工程学院训练部,重庆,401331 |
| 基金项目： | 科技部科技人员服务企业行动计划项目(2009GFJ10031)；中国人民解放军后勤工程学院学术创新基金资助项目(YZ0742201) |
| 摘 要： | 测试了海水海砂胶砂中钢筋的极化电位和失重率,观察了钢筋的锈蚀情况,研究了不同掺合料和阻锈剂对海水海砂混凝土护筋性的影响.结果表明:粉煤灰、矿渣对海水海砂混凝土护筋性改善作用有限,而偏高岭土的改善作用显著,钢筋极化电位明显正移;阻锈剂中三乙醇胺对海水海砂混凝土护筋性改善作用明显;复掺偏高岭土(20%,质量分数)和三乙醇胺(1.5%,质量分数)后,海水海砂混凝土的护筋性明显提高,钢筋极化电位与淡水标准砂配制的普通混凝土相近,钢筋失重率明显降低,标准养护420d后钢筋无任何锈蚀. |
| 关 键 词： | 海水海砂混凝土 钢筋 极化电位 护筋性 掺合料 阻锈剂 |
| 收稿时间： | 2010/9/27 0:00:00 |
| 修稿时间： | 2011/1/24 0:00:00 |
Discussion of Rebar Protecting Properties of Seawater Seasand Concrete Mixed with Admixture and Corrosion Inhibitor |
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| ZHOU Jun-long , OU Zhong-wen , JIANG Shi-yong , CHEN Qiao , CHEN Yun , CHEN Han-bin , XU Chun-xia.Discussion of Rebar Protecting Properties of Seawater Seasand Concrete Mixed with Admixture and Corrosion Inhibitor[J].Journal of Building Materials,2012,15(1):69-74. | |
| Authors: | ZHOU Jun-long OU Zhong-wen JIANG Shi-yong CHEN Qiao CHEN Yun CHEN Han-bin XU Chun-xia |
| Affiliation: | 1.Management Division of Construction Engineering,Sichuan Province Housing and Urban-Rural Construction Department,Chengdou 610041,China;2.Chemistry and Materials Engineering Department,Chinese People’s Liberation Army Logistical Engineering University,Chongqing 401331,China;3.Training Department,Chinese People’s Liberation Army Logistical Engineering University,Chongqing 401331,China) |
| Abstract: | The effect of admixture and corrosion inhibitor on rebar-protecting properties of seawater-seasand concrete was studied by testing polarization potential and mass loss of rebar in seawater-seasand mortar.It is concluded that the fly ash,slag have limited improvement on the rebar-protecting properties of seawater-seasand concrete whereas metakaolin has a marked effect of improvement.When metakaolin is added,the rebar polarization potential obviously moves to the positive.In addition,triethanolamine corrosion inhibitor has the good effect on improving the rebar-protecting properties of seawater-seasand concrete.The combination of metakaolin(20%,by mass)and triethanolamine(1.5%,by mass)has an significant effect on the rebar-protecting properties of seawater-seasand concrete,the rebar polarization potential is the same as the ordinary concrete made with fresh water and sand,rebar mass loss is significantly reduced,rebar cured for 420d is not corroded at all. |
| Keywords: | seawater-seasand concrete rebar polarization potential rebar-protecting property admixture corrosion inhibitor |
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