<p>content tester to detect the water content of grass-roots, grass-roots moisture content should be less than 3%. 3, the strength of the grass-roots should not be less than the strength of concrete C-20 requirements, or should be used to strengthen the intensity of self-leveling. 4, with the hardness tester test results should be the base surface hardness of not less than 1.2 MPa. 5, for the construction of stone flooring materials, grass-roots unevenness should be in the </p>
<p>range of 2 meters straight range between the level of less than 2 mm, or should be used for leveling the appropriate leveling. Second, the floor pretreatment 1, the use of more than 1000 watts of floor grinding machine with the appropriate grinding of the floor to the overall polished, remove the paint, glue and other residues, raised and loose plots, The block must also be removed. 2, with no less than 2000 watts of industrial vacuum cleaner on the floor for </p>
<p>cleaning and cleaning. 3, for the cracks on the floor, stainless steel can be used as a reinforced and polyurethane waterproof adhesive surface of the quartz sand shop to repair. Third, the self-leveling construction - primer 1, the absorption of grass-roots, such as concrete, cement mortar leveling layer should be the first use of multi-purpose interface treatment agent by 1: 1 ratio dilution after a closed primer. 2, non-absorbent base such as tiles, terrazzo, marble, </p>
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