| 提高硅钙渣胶凝活性的热活化实验 |
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| 引用本文： | 杨志杰, 孙俊民, 张战军, 苗瑞平. 提高硅钙渣胶凝活性的热活化实验[J]. 环境工程学报, 2015, 9(9): 4526-4530. doi: 10.12030/j.cjee.20150969 |
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| 作者姓名： | 杨志杰 孙俊民 张战军 苗瑞平 |
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| 作者单位： | 1.大唐国际高铝煤炭资源开发利用研发中心, 呼和浩特 010050 |
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| 基金项目： | 内蒙古自治区科技重大专项 |
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| 摘 要： | 硅钙渣作为高铝粉煤灰碱-石灰烧结法提取氧化铝后产生的二次固废,为了使其能够大量地应用于建材领域,研究了热活化温度对硅钙渣水化胶凝性活性的影响,并采用TG-DSC和XRD对机理进行了分析。 结果表明,硅钙渣中方解石的分解是硅钙渣活性得以提高的主要因素,在煅烧温度在600~700℃时,其胶凝活性最佳。
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| 关 键 词： | 硅钙渣 胶凝活性 温度 |
| 收稿时间： | 2014-09-15 |
Thermal activation experments on improving cementitious activity of silicate-calcium slag |
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| Yang Zhijie, Sun Junmin, Zhang Zhanjun, Miao Ruiping. Thermal activation experments on improving cementitious activity of silicate-calcium slag[J]. Chinese Journal of Environmental Engineering, 2015, 9(9): 4526-4530. doi: 10.12030/j.cjee.20150969 |
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| Authors: | Yang Zhijie Sun Junmin Zhang Zhanjun Miao Ruiping |
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| Affiliation: | 1.Datang International High Alumina Coal R&D Center, Hohhot 010050, China |
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| Abstract: | The silicate-calcium slag is a solid waste produced in the alumina extraction from high alumina fly ash by means of sodium hydrate & limerock agglomeration. To largely imploy it into the building materials industry, we studied the influence of agglomerating temperature on the cementation activity of silicate-calcium slag, and meanwhile, we also analyzed the mechanism through TG-DSC and XRD. The results showed that the decomposition of calcite in the silicate-calcium slag is the major factor for improving the cementation activity of silicate-calcium slag, and the optimal cementation activity was achieved when the agglomerating temperature was 600~700℃. |
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| Keywords: | silicate-calcium slag cementations activity temperature |
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