| 摘要: |
| 通过热分析、显微镜观察、X射线衍射分析和扫描电子显微镜能谱仪测试，研究了高硅石灰石对贝利特硫铝酸钡钙水泥熟料矿物结构和性能的影响.结果表明：高硅石灰石的分解温度低，少量掺入可以促进C3S晶体发育，提高水泥熟料质量；高硅石灰石带入的α 石英阻碍了C3S矿物的形成和发育，但高硅石灰石带入的菱镁矿和白云石能够改善水泥熟料液相性质，促进C3S矿物在低温下形成.当高硅石灰石与普通石灰石质量比为1.0︰5.0时，所制备的贝利特硫铝酸钡钙水泥的3，7，28d抗压强度分别为37.9，60.3，87.9MPa，展现出了良好的力学性能. |
| 关键词: 高硅石灰石 贝利特 硫铝酸钡钙 水泥熟料 |
| DOI：10.3969/j.issn.10079629.2012.01.01.003 |
| 分类号: |
| 基金项目:国家重点基础研究发展计划(973计划)项目(2009CB623101 1);国家自然科学基金资助项目（51102113） |
|
| Influence Mechanism of High Silicon Limestone onBelite Barium Calcium Sulphoaluminate Cement |
|
|
| Abstract: |
| The influence of high silicon limestone on mineral structure and performance of belite barium calcium sulphoaluminate cement clinker were investigated by thermal analysis, petrographic analysis, X ray diffraction and scanning electron microscopy energy dispersive spectroscopy. The results show that high silicon limestone has low decomposition temperature, which can promote the development of C3S by adding small quantity. The formation and development of C3S is hindered by α quartz while C3S is formed easily by mixing magnesite and dolomite in high silicon limestone at low temperature. When mass proportions of high silicon limestone and ordinary limestone is 1.0︰5.0, the compressive strength of this cement at 3, 7, 28 d is 37.9, 60.3, 87.9 MPa respectively, which shows excellent improvement of mechanical properties. |
| Key words: high silicon limestone belite barium calcium sulphoaluminate cement clinker |
