Academic Journal

氯氧镁水泥混凝土中涂层钢筋的防腐试验研究.

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العنوان: 氯氧镁水泥混凝土中涂层钢筋的防腐试验研究. (Chinese)
Alternate Title: Experimental study on anticorrosion of coated reinforcement in magnesium oxychloride concrete. (English)
المؤلفون: 乔宏霞, 李江川, 温少勇, 王鹏辉, 郭向柯
المصدر: Journal of Functional Materials / Gongneng Cailiao; 12/30/2018, Vol. 49 Issue 12, p12137-12143, 7p
Abstract (English): Tri order to solve the corrosion problem of reinforcement in magnesium chloride cement concrete? the accelerated corrosion test of magnesium chloride cement coated reinforced concrete was carried out by solution immersion ? according to the natural environment in the saline soil area in Western China, The corrosion polarization curve of bare steel bar and coated steel bar in magnesium chloride cement concrete was measured by electrochemical test. The corrosion degree of the steel surface was analyzed ? and its products were analyzed by SEM and XRD micro test. Finally ? it is concluded that the coating could protect the steel bar from corrosion in different environment by analyzing the open circuit potential ? corrosion rate and corrosion current density. After the final corrosion was stable? the corrosion current density of the coated steel bar was 1/20 of that of the exposed steel bar, and the corrosion rate was consistent with the change of the corrosion current density, thus the coating had a good anticorrosion effect on the reinforcement in the concrete of magnesium oxychloride cement. [ABSTRACT FROM AUTHOR]
Abstract (Chinese): 了解决氯氧镁水泥混凝土中钢筋的锈蚀问题, 根据西部盐渍土地区的自然环境, 对氯氧镁水泥涂层 钢筋混凝土进行了溶液浸泡加速锈蚀试验; 通过电化学试验测得了表征氯氧镁水泥混凝土中棵露钢筋和涂层钢 筋锈蚀的极化曲线, 对钢筋表面的锈蚀程度进行分析、通过S E M 和X R T) 微观试验对其产物进行分析; 最终得出, 通过对钢筋的开路电位、腐蚀速率和腐蚀电流密度分析得出, 在不同环境下, 涂层可以很好的保护氯氧镁水泥混 凝土中的钢筋免受腐蚀。在最后腐蚀达到稳定后, 涂层钢筋的腐蚀电流密度是棵露钢筋的1 / 2 0 , 其腐蚀速率和腐 蚀电流密度变化波动相保持一致, 从而得出涂层对氯氧镁水泥混凝土中的钢筋有很好的防腐效果. [ABSTRACT FROM AUTHOR]
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قاعدة البيانات: Complementary Index
الوصف
تدمد:10019731
DOI:10.3969/j.issn.1001-9731.2018.12.021