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防水砂浆是农村建房中不可缺少的防潮层材料,可以采用普通水泥砂浆制作,配合比水泥:砂=1∶2～2.5,水灰比应在0.5～0.55之间,水泥应选用325号以上的普通硅酸盐水泥,砂子最好是中砂。搅拌要均匀,涂抹要密实。这种砂浆适用于地下水位较低的地方。如果地下水位较高,防水砂浆则用一般水泥砂浆中掺入防水剂来提高砂浆的抗渗能力。防水剂多种多样。一般民用建筑中采用氯化物金属盐类就可以了,在建筑商店均可买到,又
Waterproof mortar is an indispensable layer material in rural construction. It can be made of ordinary cement mortar, with a ratio of cement to sand = 1:2 to 2.5, water-cement ratio should be between 0.5 and 0.55, and cement should be used above 325. Ordinary portland cement, sand is best medium sand. Stir it evenly and apply it densely. This kind of mortar is suitable for places with low groundwater levels. If the groundwater level is higher, the waterproof mortar incorporates a waterproof agent in the general cement mortar to improve the impermeability of the mortar. Water repellents are varied. It is sufficient to use chloride metal salts in general residential buildings, which can be purchased in construction stores.