作　　者： ; ;

机构地区： 韩山师范学院化学系

出　　处： 《海湖盐与化工》 2004年第6期20-22,共3页

摘　　要： 　文章研究了卤水对氯氧镁水泥性能的影响。结果表明:氯氧镁水泥具有优良的抵抗中、高度卤水的能力(≥20°Be′,15℃),但对低度卤水的抵抗能力则取决于所采用的抗水添加剂。卤水对氯氧镁水泥性能的影响机理可能是由于其中的相5(5Mg(OH)2·MgCl2·8H2O)、相3(3Mg(OH)2·MgCl2·8H2O)、相2(2MgCO3·Mg(OH)2·MgCl2·6H2O)在卤水中的溶解造成。卤水浓度高时,溶解过程较小,抗卤水能力就强。反之,溶解过程就大,抗卤水能力就差。卤水浓度的变化就证实了这一点。改性制得的氯氧镁水泥样品e#具有抵抗各种浓度卤水的能力。 The influence of bittern on the property of magnesium oxychloride cement(Mg-cement)was studied.The result indicated much better bittern-resistance of Mg-cement in bittern higher than 20°Be′(15℃),and the ability of bittern-resistance of Mg-cement in bittern lower than 20°Be′(15℃)depending on the improvement with water-resistance additives.The influence of bittern on Mg-cement is perhaps due to the existent dissolution process of phase 5(5Mg(OH)_2·MgCl_2·8H_2O),phase 3(3Mg(OH)_2·MgCl_2·8H_2O)and phase 2(2MgCO_3·Mg(OH)_2·MgCl_2·6H_2O)in bittern.The higher the concentration of bittern,the lower the degree of dissolution of phase 5,phase 3and phase 2,and the better the bittern-resistance of Mg-cement;the lower the concentration,the higher the degree of dissolution,and the worse the bittern-resistance of Mg-cement.It was confirmed by the variation of concentration of bittern.The improved Mg-cement sample(e~#)showed much better bittern-resistance in different concentration of bittern.

关 键 词： 氯氧镁水泥 抗压强度 抗盐卤性能 改性

领　　域： [理学] [理学]