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掺合料对混凝土抗硫酸盐侵蚀能力的影响 被引量:28

Effect of admixture on the concrete deterioration in sulfate environment
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摘要 硫酸盐侵蚀是混凝土耐久性研究的一个重要内容。掺合料的加入,改变了混凝土的化学成分和内部结构,对混凝土抗硫酸盐侵蚀能力的提高起着很重要的作用。但是,掺入不同的掺合料或不同的掺量,会对混凝土抗硫酸盐侵蚀能力产生不同的影响。例如粉煤灰、硅灰在抗硫酸盐侵蚀方面发挥着不同程度的作用。另外,掺合料化学成分的变化也会改变混凝土抗硫酸盐侵蚀的效果。论述了掺合料对混凝土抗硫酸盐侵蚀能力影响的国内外研究现状和进展,分析了今后的研究方向。 Sulfate attack is the important aspect of concrete durability study.The addition of admixture can effect the sulfate resistance capacity.However,the incorporation of the different admixtures or the different contents will have different effects on the sulfate resistance capacity.For ex-ample,fly ash and silica fume play the varying roles in sulfate resistance aspect.In addition,the changes of admixtures in chemical composition will change the effect of the concrete sulfate resistance.In this article,the research actuality and progress at home and abroad that the admixtures affect the sulfate resistance capacity is discussed and the direction of future research is analyzed.
出处 《混凝土》 CAS CSCD 北大核心 2011年第2期63-65,共3页 Concrete
基金 福州大学科技发展基金(2008-XQ-4)
关键词 硫酸盐侵蚀 混凝土 掺合料 sulfate attack concrete admixture
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