无机胶凝体系对水泥基饰面砂浆性能影响的研究

摘要

研究了不同掺量的无水石膏和β-半水石膏在不同胶凝材料用量下,对饰面砂浆力学性能、吸水量和抗泛碱的影响.结果表明:石膏掺量较低时,砂浆的抗折和抗压强度较高、吸水量较低、抗泛碱效果较好,但拉伸强度较低;同等掺量时,掺加无水石膏的砂浆抗折和抗压强度较高.%In the paper,under different binders' content,the influence of different dosage of anhydrite and β-hemihydrate on mechanical performance,water adsorption amount and anti-efflorescence are studied.The test results show that,with lower gypsum dosage,the flexural and compressive strength of mortar was high,water adsorption amount was low,and anti-efflorescence effect was good,while the tensile adhesive strength was lower:on the same dosage,flexural and compressive strength of mortar with anhydrite addition was higher.