To do so, he does not cause surface layer and cement mortar is inconsistent, surface water mud too much, easy to the problem of craze.

这样做，就不致造成表面与里层砂浆配合比不一致，表面水泥浆太多，易于开裂的问题。

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Crack waterproof layer materials by crack cement mortar complex fiberglass nets composition, but the long-term effective control protection layer the creation of cracks.

抗裂防水保护层材料由抗裂水泥砂浆复合玻纤网组成，可长期有效控制防护层裂缝的产生。

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Mat layer shall first be wet, put a layer of thick 2 ~ 3 cm of cement mortar, he slipped end-over-end machine and then in cement mortar before the first layer of concrete pouring agglomerate.

垫层应先加以潮湿，铺一层厚2～3cm的水泥砂浆，涵管机然后于水泥砂浆凝聚前浇注第一层混凝土。

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