| 粉煤灰对铝酸盐水泥和硅酸盐水泥耐热性能的影响 |
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| 引用本文： | 李辉,刘海燕,周茜.粉煤灰对铝酸盐水泥和硅酸盐水泥耐热性能的影响[J].硅酸盐通报,2018,37(2):607-612. |
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| 作者姓名： | 李辉 刘海燕 周茜 |
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| 作者单位： | 西安建筑科技大学材料与矿资学院,西安710055;陕西省生态水泥混凝土工程技术研究中心,西安710055 |
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| 摘 要： | 将粉煤灰作为矿物掺合料分别掺人到铝酸盐水泥和硅酸盐水泥中,通过耐热性能测试、X射线衍射和扫描电子显微镜研究粉煤灰对水泥石在750℃条件下的耐热性能的影响.结果表明:粉煤灰在铝酸盐水泥中没有发生反应,对铝酸盐水泥的耐热性能没有改善作用;粉煤灰对硅酸盐水泥的耐热性能有明显的改善作用,在掺量40％以下,随着粉煤灰掺量的增加,水泥石煅烧后的残余强度增加;综合比较,粉煤灰-硅酸盐水泥体系的耐热性能优于粉煤灰-铝酸盐水泥体系.
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| 关 键 词： | 铝酸盐水泥 硅酸盐水泥 粉煤灰 耐热性能 |
Effect of Fly Ash on the Heat-resistant Property of Aluminate Cement and Portland Cement |
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| LI Hui,LIU Hai-yan,ZHOU Qian.Effect of Fly Ash on the Heat-resistant Property of Aluminate Cement and Portland Cement[J].Bulletin of the Chinese Ceramic Society,2018,37(2):607-612. |
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| Authors: | LI Hui LIU Hai-yan ZHOU Qian |
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| Abstract: | Fly ash as mineral admixture was added into aluminate cement and portland cement respectively.With the aid of mechanical property test,X-ray diffraction (XRD) and scanning electron microscope (SEM) analyses,the effect of fly ash on the heat-resistant property of aluminate cement and Portland cement under 750 ℃ was investigated.The results show that fly ash don't react with aluminate cement and cant enhance the heat-resistant property of aluminate cement.Fly ash could enhance heat-resistant property of portland cement,and residual strength of cement stone after high temperature calcination is improved with the increasing of the content of fly ash below 40％.By the comparison,the heat-resistant property of fly ash-portland cement is better than that of fly ash-aluminate cement. |
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| Keywords: | aluminate cement portland cement fly ash heat-resistant property |
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