Construction requirements for cement base surface of the floor paint

Floor paint construction requirements for cement base surface of

1) For cement base surface solid, solid, not shell, it is best to cement surface with the bottom of the concrete pouring, to put an end to mortar layer shell phenomenon; If is to spread dao after concrete mortar screed-coat first, insist on mortar layer thickness is greater than 3 cm, if it is a sports car, the mortar layer to be more thicker, in order to prevent the car after pressing mortar layer block, separation, crushing.

　　2) Requirements, sand, cement layer surface hardness. To this end it is cement quality is better, second, and the ratio of sand to appropriate, generally is cement sand ratio to appropriate, general is to fully maintain good cement mortar layer, timely watering, prevent pulverization.

　　3) Surface smooth, no bump and honeycomb pitting surface, the phenomenon such as cement bumps.

　　4) Surface is dry, the moisture content of 6% from the time, the maintenance after the construction phase of the concrete is 3 - in summer 4 weeks. Rubber mat test, winter & sup3; - 6 weeks, mortar layer 2 weeks in the summer and winter 4 weeks. Or make rubber mat test, which USES a 0. 5 m× 0. About 5 m rubber tile on the concrete, round with tape sealing side, four hours later to check whether there is water, rubber cushion layer without surface drying, can the construction.

　　5) PH value on the surface of the floor should be 6. 8 - 8. 0.

　　6) The ground without other paint, latex paint, oil, wax, bubble gum residue. If so, try to clear first.

　　7) Check with 2 m ruler and wedge ruler, flatness is not more than 5 mm.

　　8) Slope should comply with the design requirements, the allowable deviation value for the slope of 0. 2%, not more than 30 mm ( 'quantity inspection and water test) 。