| 含MgO的硅酸盐水泥熟料的形成动力学 |
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| 引用本文： | 王春芳,周宗辉,刘彩霞,程新.含MgO的硅酸盐水泥熟料的形成动力学[J].硅酸盐学报,2011,39(4):714-717. |
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| 作者姓名： | 王春芳 周宗辉 刘彩霞 程新 |
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| 作者单位： | 1. 教育部先进建筑材料工程中心,山东省建筑材料制备与测试技术重点实验室,济南大学,济南,250022
2. 山东民族技师学院,山东,潍坊,262500 |
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| 摘 要： | 应用Gentling方程和Arrhenius公式得出熟料的形成速率、反应速率常数及反应活化能等,研究MgO对硅酸盐水泥熟料形成动力学影响;结合X射线衍射和扫描电子显微镜分析其对熟料矿物组成和形貌的影响.结果表明:适量的MgO可以促进硅酸盐矿物的形成和熟料煅烧温度的降低;当MgO含量(质量分数)从0增加到2%时.熟料形成...
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| 关 键 词： | 动力学 水泥熟料 氧化镁 |
Formation Kinetics of Portland Cement Clinker Containing with Magnesium Oxide |
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| WANG Chunfang,ZHOU Zonghu,LIU Caixia,CHENG Xin.Formation Kinetics of Portland Cement Clinker Containing with Magnesium Oxide[J].Journal of The Chinese Ceramic Society,2011,39(4):714-717. |
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| Authors: | WANG Chunfang ZHOU Zonghu LIU Caixia CHENG Xin |
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| Affiliation: | 1 (1.Engineering Center of Advanced Building Materials of Ministry of Education,The Key Laboratory of Building Materials Prepared and Tested Technology in Shandong Province,University of Jinan,Jinan 250022; 2.Shandong National Technician College,Weifang 262500,Shandong,China) |
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| Abstract: | The effects of magnesium oxide (MgO) on the formation kinetics of Portland cement clinker were investigated by analyzing the clinker formation rate, the reaction-rate constant (k) and the activation energy (Ea). The k and Ea were calculated according to the Gentling equation and Arrhenius equation. The mineral compositions and morphology of the resultant clinker were analyzed by X-ray diffraction and scanning electron microscope. The results show the formation of silicate minerals is promoted and the calcination temperature of clinker is decreased at a suitable content of MgO added into the raw meal. The k value increased from 0.745 0 × 10-5 to 4.543 6 × 10-5 s-1 and the Ea value decreased from 386 to 184 kJ/mol when the MgO content increased from 0 to 2% in mass. However, the reversed results were obtained at the MgO content of ＞2%. |
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| Keywords: | kinetics cement clinker magnesium oxide |
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