CAJ | 학술논문

以白云石和工业三氧化二铝为原料,采用反应烧结技术制得了含镁铝尖晶石的铝酸盐水泥,探讨了原料及烧结温度和添加剂对含镁铝尖晶石的铝酸盐水泥性能的影响,XRD结果表明产物的物相组成为MA,CA,CA2;采用扫描电镜(SEM)及能谱(EDS)对产物的显微结构进行了观察与分析.结果表明:以轻烧白云石和工业Al2O3为原料制得的水泥具有较高的结合强度;所制得的含镁铝尖晶石的铝酸盐水泥的显微结构较为均匀,外加剂CaCl2具有明显的早强效果.
이백운석화공업삼양화이려위원료,채용반응소결기술제득료함미려첨정석적려산염수니,탐토료원료급소결온도화첨가제대함미려첨정석적려산염수니성능적영향,XRD결과표명산물적물상조성위MA,CA,CA2;채용소묘전경(SEM)급능보(EDS)대산물적현미결구진행료관찰여분석.결과표명:이경소백운석화공업Al2O3위원료제득적수니구유교고적결합강도;소제득적함미려첨정석적려산염수니적현미결구교위균균,외가제CaCl2구유명현적조강효과.
A new type of calcium aluminate cement containing MA spinel was produced by sintering the raw materials of dolomite and alumina mixture. The effects of raw materials and sintering temperature and additives on the properties of cements was were investigated. X-ray diffraction (XRD) results indicate that the final products consisted of CA, CA2and MA. The microstructure of product was analyzed by means of scanning electron microscope (SEM)and energy dispersive spectrometry (EDS). The experiments results showed that the cement had the satisfied cold bonding strength and sintering properties when the light-burned dolomite and alumina were employed and fired at 1600C. The new type cements has relatively uniform microstructure The early stage strength of the refractory castables bodies was greatly improved by adding 2wt. % of CaCl2 as a strength modifier.