摘   要：为研究玻化微珠抹面砂浆这种保温材料的防结露效果，分别以普通砂和玻化微珠为骨料，制作普通水泥抹面砂浆和不同厚度的玻化微珠抹面砂浆与混凝土底板复合试件，放置于具有恒定温湿度差的结露环境中，观察发生结露的时间。试验结果表明，玻化微珠砂浆的隔热性与其表面的毛细吸水作用有益于延长其表面发生结露的时间，且结露时间随砂浆厚度增加而延长。在给定试验环境下，10 mm厚玻化微珠砂浆发生结露时间约为同等厚度普通水泥砂浆的10倍；15 mm厚的玻化微珠砂浆在试验周期内表面未发生结露。.

Abstract: In order to research the anti-condensation properties of the insulating material of glazed hollow beads surface mortar, ordinary sand and glazed hollow beads were used as aggregates to make composite specimens of ordinary cement surface mortar and glazed hollow beads surface mortar with different thickness, which were placed in the condensation environment with constant difference of temperature and humidity, the time of condensation was observed. The results show that heat insulation and capillary water absorption of the glazed hollow beads mortar are beneficial to prolong the dew condensation time on the surface, and which prolongs with incresing of mortar thickness. Under a given experimental environment, the dew condensation time of the 10 mm thick glazed hollow beads mortar is 10 times that of the ordinary cement mortars, the dew consendation does not occur on the surface of the 15 mm glazed hollow beads mortar during the experimental cycle.