1. The cover of the grate well itself is very fragile. When the cap is installed on the asphalt pavement, it must not allow the large mechanical equipment to crush the well cover. When the pavement is cast as a whole, the pavement should be reserved for a larger hole than the well and resettled after the asphalt pavement is finished. To ensure the placement quality of the spheroidal graphite well cover and prolong its service life.
2. In masonry of the masonry grate well cover, it must be carried out according to the standard of the inner diameter measured by the designer. When laying the well, we must pay attention to the inner diameter of the wellhead should be in line with the inner diameter of the grate of the grate well lid.
3. The surface of the lid of the grate well usually has the pattern and handwriting. In order to keep the pattern and handwriting of the ball grate, the appearance is beautiful. In the construction of the asphalt pavement, the thin iron skin is covered with the cover of the grate well, or the surface is painted with the waste oil.
It is difficult to remove the bitumen oil on the cover of the grate well. In the construction of the cement pavement, the cover can be covered with plastic film to prevent the cement mortar from staining the surface of the ball grate cover, blurred the pattern of the surface, or can be cleaned with water after the day of construction.
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