| 高P钢渣微粉缓凝机理研究 |
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| 引用本文： | 柳 东,刘福田,张德成,赵德利,张 波. 高P钢渣微粉缓凝机理研究[J]. 水泥工程, 2014, 27(6): 62-65 |
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| 作者姓名： | 柳 东 刘福田 张德成 赵德利 张 波 |
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| 作者单位： | 济南大学材料科学与工程学院,山东济南250022 |
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| 摘 要： | 试验分析了莱钢钢渣微粉和山东某钢厂高P钢渣微粉的特性,莱钢钢渣中C3S、C2S等活性矿物含量多于高P钢渣,且P含量少于高P钢渣。在此基础上,进行了高P钢渣和莱钢钢渣对钢渣微粉—水泥胶凝材料凝结时间和1d强度的影响试验;重点分析了高P钢渣影响水泥凝结时间和1d强度的原因和机理,即高P钢渣中的可溶性P在硅酸盐水泥早期水化过程中,会随着钢渣中玻璃体的解聚溶出,与钙离子结合生成羟基磷灰石,附着于活性矿物表面,阻碍硅酸盐水泥中C3A、C3S、C2S等活性矿物的正常水化进程。
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| 关 键 词： | 钢渣 高P钢渣 缓凝机理 可溶性磷 玻璃体 羟基磷灰石 强度 |
Study on retarder mechanism of high P steel slag powder |
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| Liu Dong,Liu Futian,Zhang Decheng,Zhao Deli and Zhang Bo. Study on retarder mechanism of high P steel slag powder[J]. Cement Engineering, 2014, 27(6): 62-65 |
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| Authors: | Liu Dong Liu Futian Zhang Decheng Zhao Deli Zhang Bo |
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| Affiliation: | 1.School of Materials Science and Engineering, University of Jinan, Jinan 250022,China) |
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| Abstract: | The characteristics of Laiwu steel slag and high P steel slag were analysed in this experiment as the activity mineral content of Laiwu steel slag is higher than that of high P steel slag, and the P content is less. On that basis, carried out the experiment of impacts of Laiwu steel slag and high P steel slag oil ld compressive strength and setting time of steel slag-cement cementing material, and anal- ysed the mechanisms ;n early hydration process, soluble P in high P steel slag may dissolve with vitreous body depolymerizing and combine to Ca2＋ to form hydroxyapatite which is attached to the surface of active mineral to obstacle their normal hydration of C3A,C3S, C2S etc. |
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| Keywords: | steel slag high P steel slag retarding mechanism soluble P elemet, t vitreous hydroxyapatite strength |
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