INTERFLOOR NOISE PROOFING MATERIAL AND FLOOR EXECUTION METHOD USING THE SAME

摘要

An interlayer sound insulation material and a floor construction method using an interlayer sound insulation material are provided to prevent floor impact sound effectively by optimizing the structure or physical properties of resin foam of an interlayer sound insulation material. An interlayer sound insulation material includes open cell resin foam having a proportion of open cells of more than 20% and a dynamic modulus of elasticity of 0.5~10MN/m^3, wherein the resin foam is made of one or more kinds of foams selected from a group of polyurethane foam, poly urea foam, polyvinyl chloride foam, polypropylene foam, polystyrene foam, polyvinyl acetate foam, melamine resin foam and phenol resin foam. In addition, one or more functional layers selected from a group of a dimensional stabilization layer, a waterproof layer, an insulation layer and a reinforced board layer are formed on one or two sides of the resin foam, and irregularities are formed on one or two sides of the interlayer sound insulation material having the resin foam and the functional layer to increase shock absorbing capacity and thermal insulating efficiency. A floor construction method using an interlayer sound insulation material comprises the steps of constructing an interlayer sound insulation material on a slab, and constructing a concrete layer, a mortar layer and a floor finishing material on the constructed interlayer sound insulation material in order.