一般冷库或食品工业的发酵车间等,都需砌双层墙,其内表面还要抹水泥砂浆找平层,然后做二毡三油防水层,防水层做好后即填稻壳,以满足保温隔热的要求。在一般情况下,卷材防水层必须待基层干燥后才能施工,否则粘结不牢。但双层墙内面或地下室的找平层完全干透后再做防水很费时间,往往影响工期。我单位在某工程中根据防水油能闭水、闭潮的原理,在找平层上刷一层用防水油、水泥和水配成的混合剂,即可把潮湿封闭住,马上能做防水。这种湿法防水施工,经过一年来的实践,粘结牢固,效果很好。一、混合剂的配制使用425号普通硅酸盐水泥,天津产新建牌防水剂和普通自来水配制混合剂。其配 General cold storage or food industry fermentation workshop, etc., are required to build a double wall, the inner surface but also wipe the cement mortar screed, and then do two felt three oil waterproof layer, the waterproof layer is ready to fill the rice husk to meet the insulation Thermal insulation requirements. Under normal circumstances, the waterproofing membrane must be dried after the base layer is dry. Otherwise, it will not be bonded firmly. However, it is very time consuming for the leveling layer on the inner surface of the double wall or the basement to dry completely, which often affects the construction period. In accordance with the principle that water-repellent oil can close water and close the tide, the unit can brush a layer of a mixture of waterproof oil, cement, and water on the screed to seal the moisture and make it waterproof immediately. This wet waterproof construction, after a year of practice, is firmly bonded and works well. First, the preparation of the mixture using ordinary Portland cement No. 425, Tianjin brand new waterproofing agent and ordinary tap water preparation mixture. Its distribution