为了改善混凝土和砂浆的性能,人们采用各种外加剂。“微沫剂”就是我国近年来出现的一种砂浆外加剂。在房屋建筑施工中,用于砌筑砂浆和内墙粉刷的生石灰用量较大,工地淋灰常常出现供不应求现象,尤其是冬季施工,因气候影响给使用石灰膏带来很大困难。因此在一些工地,有时甚至不用石灰膏拌 In order to improve the performance of concrete and mortar, various admixtures have been used. “Microfoam” is a kind of mortar admixture that appeared in China in recent years. In the construction of houses, the amount of quicklime used for masonry mortar and internal wall painting is relatively large, and the phenomenon of infusion of ash on the construction site often appears to be in short supply, especially in winter construction. It is difficult to use lime paste due to the influence of climate. So on some sites, sometimes even without lime paste