WATER PROOFING AND FLOOR CONSTRUCTION METHOD ON CONCRETE USING ECO-FRIENDLY MATERIALS

摘要

PURPOSE: A concrete surface waterproofing and a construction method of a floor to which an environmentally friendly material are provided to improve the workability by protecting a worker from harmful environment and bad smell during the construction and to reinforce the waterproofing function. CONSTITUTION: A bottom layer of a concrete structure is surface-processed. A water solubility primer is coated on the entire bottom layer in order to form a primer layer. A polyurethane coating layer is formed by coating polyurethane to an upper part of a primer layer. A polyurea layer is formed by coating an environmentally friendly and nontoxic polyurea resin on the upper part of the polyurethane coating layer. [Reference numerals] (AA) Waterproofing and floor construction flow chart; (BB) Step 1 - Treat the surface of a bottom layer; (CC) Step 1-1 : Grind a protruding part; (DD) Step 1-2 : Clean the bottom surface; (EE) Step 1-3 : Fill a sunken part with an elastic sealant; (FF) Step 2 : Form a primer layer; (GG) Step 2-1 : Mix liquid primer A and B with water; (HH) Step 2-2 : Spread with a brush and a roller; (II) Step 2-3 : Harden; (JJ) Step 3 : Form a polyurethane coating layer; (KK) Step 3-1 : Remove various foreign materials; (LL) Step 3-2 : Coat an urethane waterproofing agent; (MM) Step 3-3 : Harden after coating; (NN) Step 4 : Form a polyurea layer; (OO) Step 4-1 : Mix after heating; (PP) Step 4-2 : Spray with a spray gun