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我单位在安徽省宣城县面粉厂仓库地坪施工中,使用了新型建筑材料明矾石膨胀剂。利用明矾石膨胀剂在混凝土及砂浆中的防水作用,相应取代了原设计的两毡三油。原设计地坪和更改后的地坪施工程序见图1、2。原设计地坪更改后不仅方便了施工,加快了施工进度,而且可以相应的节约了部分建设资金。地坪经几年实际检验证明,防水效果良好,没有反潮、渗水现象。具体作法如下。
In the construction of the floor of the flour factory in Xuancheng County, Anhui Province, the company used a new type of construction material, alum expansion agent. The waterproof effect of the alum stone swelling agent in the concrete and mortar replaces the originally designed two felt and three oils. The original design floor and the changed floor construction procedure are shown in Figures 1 and 2. After the original design of the floor was changed, it not only facilitated the construction, but also accelerated the construction progress, and it could save some construction funds accordingly. After several years of actual inspection, the floor has proved that the waterproof effect is good and there is no phenomenon of anti-tide and seepage. The specific practices are as follows.