First, ground based survey
First of all, there is a corresponding requirement for the ground flatness, hardness, strength, humidity and environmental humidity of the construction site to be constructed.
1. Ground flatness: The flatness of the 2m ruler should be less than 2mm-3mm.
2. Hardness: The surface hardness of the base layer is not less than 1.2 MPa.
3, strength: not below the concrete strength standard C-20 requirements.
4. Humidity: The moisture content of the base layer is less than 3%.
5. Ambient humidity: The indoor temperature and the ground temperature are preferably 15 degrees. Below 5 degrees and above 30 degrees, the construction environment is not possible. The indoor relative air humidity should be kept between 20% and 75%.
Second, ground foundation grinding and self-leveling construction
Purpose: To sort out the floor, remove the pollution, and focus on the ground foundation with prominent bumps. After grinding, the ground should be controlled within the range of 2m ruler to 2.5mm ruler, and there is no such hair.
Since the original base of your factory visit corridor is patterned steel, we recommend using wooden keels to treat the ground. In order to achieve the desired results.
Third, scraping glue
1. Check whether the self-leveling is qualified. If the error is less than 2mm in the 2m ruler, the large area will be unqualified or polished. If there is small area damage, it can be repaired with putty.
2, clean the ground to absorb dust, start scraping, must be evenly scraped without leakage.
Fourth, the floor covering
1. The material must be pre-released for more than 24 hours and discharged in the same direction as the arrow. The coil should be constructed according to the production flow number.
2. Pay attention to the seams when paving. Do not dock the joints too tightly to avoid curling, and do not make the gap too large. The standard can be placed in the gap of a copy paper.
3. After the pavement, carry out the air and use the iron wheel to evenly pressurize. The floor joints and the wall are pressed with a small pressure roller.
4. After the floor is paved, there shall be no occurrence of curling, foaming, drumming or excessive gaps.
5. After the glue is solidified, it is generally the next day, and the seam is opened with a slitting machine. In order to make the welding firm, the seam depth shall not exceed the thickness of the floor. The dust and debris in the groove must be removed during welding. The opening should not exceed 3.5mm. The dust and debris in the groove must be removed during welding.
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