【摘要】 为研究高流动性磷酸铵镁水泥(MAPC)硬化浆体耐盐腐蚀性能,通过测试高流动性MAPC的抗压强度、抗折强度、变形、吸水率、流动性、水化温度曲线以及微观形貌,对比研究了空白组M0和单掺水玻璃M1的MAPC硬化浆体长期浸泡在清水、氯化钠和硫酸钠溶液中的相关性能。试验结果表明:单掺水玻璃提高了MAPC硬化浆体的早期水化反应速率以及流动性;单掺水玻璃提高了MAPC硬化浆体的强度,改善了变形,降低了吸水率。此外,单掺水玻璃的M1浆体试块无论在何种溶液下进行浸泡,其性能均优于空白组M0,其中在硫酸盐溶液下性能最佳。更多还原

【Abstract】 In order to study the salt corrosion resistance of hardened slurry of magnesium ammonium phosphate cement with high fluidity. The compressive strength, flexural strength, deformation, water absorption, fluidity, hydration temperature curve and microstructure of MAPC cement with high fluidity were tested. The properties of MAPC hardened slurry of the blank group M0 and single mixing water glass M1 immersed in water, sodium chloride and sodium sulfate solutions for a long time were studied. The experimental results show that the early hydration reaction rate and fluidity of MAPC hardened slurry are improved by single mixing water glass. The strength, deformation and water absorption of MAPC hardened slurry are improved by single mixing water glass. In addition, no matter under any solution, the performance of M1 slurry sample of single mixing water glass is better than that of the blank group M0, and the performance is the best under sulfate solution.更多还原