| 陈后维,章祥林,靳廷甲,徐建.低品级菱镁矿制耐水氯氧镁胶凝材料的研制[J].安徽建筑大学学报,2015,23(): |
| 低品级菱镁矿制耐水氯氧镁胶凝材料的研制 |
| The Preparation of Water-resistant Magnesium Oxychloride Cement Made with Low-grade Magnesite |
| 投稿时间：2014-11-21 修订日期：2014-11-21 |
| DOI： |
| 中文关键词: 菱镁矿 镁质胶凝材料 耐水性能 |
| 英文关键词: magnesite magnesium oxychloride cement water resistance. |
| 基金项目: |
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| 中文摘要: |
| 用粉煤灰、磷酸、硫酸铝、有机硅防水剂以及活性氧化镁含量为34.91%的低品级轻烧氧化镁研制出一种耐水氯氧镁胶凝材料,并对镁质材料的强度、耐水性能进行了测试。通过分析粉晶XRD衍射图样和断面微观结构对镁质材料的耐水机理进行了研究。研究结果表明改性过的镁质材料具有优良的耐水性能,其28d软化系数从0.76提高到了1.01。该方法充分利用了低品级菱镁矿资源,为镁质胶凝材料的制备提供了新思路。 |
| 英文摘要: |
| A kind of water-resistant magnesium oxychloride cement(MOC) made with fly ash、phosphoric acid、aluminum sulfate、organosilicon water-proofing agent and low-grade light burned magnesium oxide contains 34.91% active magnesium oxide has been researched. Besides, the materials" strength and water resistance are test. Crystal powder XRD analysis and fracture surface SEM analysis were used to discuss the materials" water-tolerant mechanism.The results showed that the improved magnesia materials had fine water resistance, soft coefficient araised from 0.76 to 1.01. This method could take full advantage of low-grade magnesite and provides a new thinking of preparing magnesia cementing materials. |
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