摘  要：以成都地区装配式公共建筑为例，分别选取64mm厚模塑聚苯乙烯泡沫塑料保温板（简称EPS保温板）、52mm厚挤塑聚苯乙烯泡沫塑料保温板（简称XPS保温板）、39mm厚聚氨酯硬泡沫塑料保温板（简称PUR保温板）、58mm厚硬质酚醛泡沫保温板（简称PF保温板）作为夹心保温层材料，研究预制混凝土夹心保温外墙板的内部冷凝情况，其中保温材料的厚度依据GB 50189—2015《公共建筑节能设计标准》对外墙传热系数的最低要求选定。结果表明，各类型预制混凝土夹心保温墙板内部均会出现冷凝现象，但冷凝区域较小，重量湿度增量依次为1.08%、0.75%、4.50%和1.36%，满足GB 50176—1993《民用建筑热工设计规范》的要求。

Abstract: Taking the assembled public buildings in Chengdu as an example, EPS insulation board with 64mm thick, XPS thermal insulation board with 52mm thick, PUR thermal insulation with 39mm thick and PF thermal insulation board with 58mm thick were selected as the sandwich insulation layer material to study the condensation of precast concrete. The thickness of thermal insulation board is set according to the minimum requirements of the standard GB 50189—2015. The results show that there is an internal condensation problem in these precast concrete sandwich facade panels with different kinds of thermal insulation boards. But the condensation area is small. The weight of the humidity increment of 1.08%, 0.75%, 4.50% and 1.36% can meet the requirements of the standard GB 50176—1993.