对外墙外保温体系用聚合物抹面砂浆在耐候性试验环境下的力学性能进行研究。试验结果表明:外墙外保温体系用聚合物抹面砂浆经历一定次数的热雨循环和热冷循环后,抗压强度、抗折强度及粘结强度均有不同程度的下降,压折比提高。同时对外墙外保温用聚合物砂浆耐候性破坏机理进行了研究分析。 The external wall insulation system with polymer mortar in weatherability test environment mechanical properties were studied. The test results show that the compressive strength, flexural strength and bond strength of the mortar with external wall thermal insulation system have decreased to different extents and the crimp ratio increased with the repeated cycles of hot-rain and hot-cold cycles. At the same time, the weathering damage mechanism of polymer mortar for exterior insulation was studied and analyzed.