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 uses coarse aggregate to reduce cracks and vibrations for high-performance watertight concrete, as long as the unit quantity and water-binder ratio (W/B) are possible within a range that satisfies the target performance of 30 to 50 MPa in compressive strength. Watertight concrete binder made of portland cement, blast furnace slag powder, fly ash, and expansion material, fine aggregate, 10~15 mm thick aggregate, and prevent material separation while securing fluidity so that it can be obtained through a small amount of applied mixing ratio. It relates to a method for producing watertight concrete by blending a thickener and a polycarboxylic acid-based high-performance water reducing agent for, including 50 to 70% by weight of portland cement, 15 to 30% by weight of blast furnace slag powder, and 15 to 30% by weight of fly ash. Consisted water-binder ratio (W/B) 25 to 45% by weight of watertight concrete binder for telescopic use, water with unit quantity of 150 to 185 Kg, fine aggregate for concrete 500 to 900 Kg, coarse aggregate 500 to 990 Kg, thickener In the method of mixing 0.5 to 2.5% by weight of a high-performance water-reducing agent containing 2.0 to 5.0% by weight in the interior of the Portland cement, the high-performance water-tight concrete composition for communication and communication for the finishing of the floor of an apartment house for producing high-performance watertight concrete for communication purposes is used. It provides a manufacturing method, and provides a method of constructing a concrete construction method for a room floor finishing of an apartment house using a high-performance watertight concrete composition for a communication system manufactured in this way.