The present invention provides to form the waterproof layer for preventing the water penetration through, and more particularly, a crack (Crack) of the wall surface in forming the concrete structure relates to the composite waterproofing method of the concrete structure, the waterproof layer primers, film waterproofing agents, by complex formation with deulrosseo various waterproof materials comprising the waterproof sheet, reinforced sheets, concrete, characterized in that to further improve the durability of the waterproof layer and, further also further improved construction efficiency and construction quality of the concrete structure It relates to a compound waterproofing method of construction.
That is, the present invention provides a concrete structure forming step; After the step of forming the concrete structure, a composite waterproof layer forming step of forming a composite waterproof layer on the surface of the concrete structure; Jidoe to form the waterproof layer made of a composite comprising the steps, primer coating step of coating a primer on the surface of the concrete structure; The first sealant film applying step of applying a first coating film waterproofing agent in the coated primer; But a number attached with a waterproof sheet in the predetermined form to the first sealant film of the coating, water-resistant sheet attachment step of attaching to the side so that the butted to each other and fixed by fixing means; The second sealant film applying step of applying a second coating film waterproofing agent to the outer surface including the side parts of the joint of the waterproof sheet; The coating of claim adding the reinforcing sheet to the second sealant film is attached to the reinforcing sheet step; It relates to a composite structure of concrete waterproofing method comprising the.