Manufacturing Method of High Performance Water-tight Concrete Composition for Floor Finishing of Apartment Houses and Constructing Method of Concrete for Finishing Floors of Apartment Houses with it

摘要

The present invention provides a unit quantity and water-binding material ratio (W/B) within the range that satisfies the target performance of compressive strength of 30-50 MPa to reduce cracks and vibrations of high-performance watertight concrete for ventilation using coarse aggregates. A binder for watertight concrete consisting of portland cement, blast furnace slag fine powder, fly ash, and expanded material, fine aggregate, 10~15 mm coarse aggregate, and preventing material separation while securing fluidity so that it can be obtained through a small mixing ratio It relates to a method for manufacturing watertight concrete containing a thickener and a polycarboxylic acid-based high-performance water reducing agent for Water-binder ratio (W/B) of 25-45 wt% for watertight concrete for ventilation, 150-185 Kg of water, 500-900 Kg of fine aggregate for concrete, 500-990 Kg of coarse aggregate, and thickener High-performance watertight concrete composition for ventilation for floor finishing of apartment houses that produces high-performance watertight concrete for ventilation by mixing 0.5 to 2.5% by weight of a high-performance water-reducing agent containing 2.0 to 5.0% by weight inside the portland cement It provides a manufacturing method, and provides a concrete construction method for the floor finish of the apartment house using the high-performance watertight concrete composition for soundproofing manufactured in this way.