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And sub-grid disconnect joints to enhance the waterproof layer stiffness and integrity of the plate , steel mesh cloth waterproof layer

Possible bias should be set on the site. Steel mesh protective layer thickness of not less than 10 mm . Fine stone concrete waterproofing

Intensity level layer of not less than C25, and should be used mechanical agitation , mechanical vibration, concrete water-cement ratio should not exceed

055 , cement grade should not be less than 425 . The thickness of the concrete should not be less than 40 mm , such as too thin , very concrete dehydration

Fast, can not fully hydrated cement , thereby reducing the impermeability of concrete . Surface treatment waterproof layer should pay attention to the panel

Requirements consistent thickness, drainage slope to comply with regulatory requirements, post- secondary calender concrete water collection , to cut off and closed

Concrete capillary , improve impermeability . When wiping pressure surface, watering is prohibited on the surface , add water or sprinkle dry cement slurry