丽都饭店1号公寓为砖混结构,外墙约300M~2水刷石,1985年12月初施工。室外气温已达-4～～-6℃,北京地区已进入冬季施工,我们采取了一系列的技术措施,保证了施工的正常进行。从85年至今已过了四年,尚未发现此墙水刷石有脱落、空鼓、变色等现象。施工前我们参照混凝土冬施的经验,按下述方 The Lido Hotel No. 1 apartment is a brick-concrete structure with about 300 M~2 water brush stone on the external wall. It was constructed in early December 1985. Outdoor temperature has reached -4 ~ ~ -6 °C, Beijing has entered the winter construction, we have adopted a series of technical measures to ensure the normal construction. It has been four years since 85 years ago, and there have been no signs of stone brushing, hollowing or discoloration. Before construction, we refer to the experience of concrete winter facilities, as described below.