There are many types of ground engineering. At present, there are two types of floor slabs and wood floors that are more often mailed. Acceptance plate ground first depends on whether the type of plate in the surface layer (the surface layer that can be seen) meets the design requirements. The surface layer and the base layer should be firmly bonded without hollowing. Hollowing is a common disease in engineering. Simply speaking, there is an air layer between the surface material and the base layer, which leads to structural problems. The method of checking this problem is relatively simple. To find a small hammer, tap it, listen to the sound, and empty the drum if the voice is empty. Third, the floor slope of kitchen toilets must meet the design requirements, and must not be flooded or accumulated water. Fourth, the laying surface of the baseboard should be clean, the joints should be even and even, and the joints should be firm. The thickness of the wall should be suitable. A hammer can be used to tap; 5. The material and dimensions of the edging (copper wire, etc.) adjacent to the surface meet the design requirements, and the corners are neat and smooth; Sixth, using a 2 meter ruler to check the surface flatness, the allowable deviation of the marble plate is 1 mm, and the allowable deviation of the whole body brick is 2 mm; Pull 5 meters to check the seam line. The allowable deviation of straightness is 2mm. The marble is 3mm. The baseboard is straight. The allowable deviation is 1mm. The bricks are 3mm. The width of the plate gap is not more than marble. 1 mm, brick body not more than 2 mm; Check the wood surface mainly depends on the following points: First, wood joists, wool flooring and wood and other wood must do anti-corrosion treatment, installation must be firm and straight. The spacing meets the design requirements and the foot can be checked; Second, the wood surface must be nailed firmly without loosening, no hollowing, and can be tapped with a small hammer to check; Thirdly, the surface layer of the wood is polished and polished, with no scars, blemishes, and furrows. The pattern is clear, the gap is tight, and the joint is staggered and glued without overflow; Fourth, the wooden skirting seam tightly smooth surface, the thickness of the wall is the same; Fifth, use a 2-meter ruler to check the surface flatness, allowing a deviation of 2 mm. Pull the surface of the 5 meter line to allow the seam straightness to be allowed to deviate by 3 mm, the allowable deviation of the straight line on the baseboard line is 3 mm, and the gap width is not more than 0.5 mm. Experience on ground acceptance marble floor tiles Eva Resin,Hydrogenated Hydrocarbon Resin Co., Ltd. , http://www.nsresin.com
Secondly, it is necessary to check that the surface of the plate should be clean, the pattern is clear, the color and luster are uniform, the interface is uniform, the periphery is straight, and there is no phenomenon of cracks and defects;