建筑防水工程按照不同的防水材料及施工做法,可分为四种:沥青基卷材防水、高分子合成材料卷材防水、合成橡胶树脂涂膜防水,(以上称为柔性防水);防水砂浆及结构构件自防水。(即称为刚性防水) 刚性防水造价较低,但延伸率很低,防水层易开裂,难以保证结构不透水,因此不能满足高标准的建筑防水需要。 Waterproofing construction in accordance with the different waterproof materials and construction practices, can be divided into four types: water-based bitumen membrane, synthetic polymer membrane waterproofing, synthetic rubber resin coating waterproof (above referred to as flexible waterproof); waterproof mortar and Structural components self-waterproofing. (That is, rigid waterproof) Rigid waterproof lower cost, but the elongation is very low, the waterproof layer is easy to crack, it is difficult to ensure that the structure impermeable, and therefore can not meet the high standard of building waterproofing needs.