What are the precautions for installing cast iron manhole covers?

What are the precautions for installing cast iron manhole covers?

The cast iron manhole covers in China got rid of the original problems and began to use a new type of ductile iron manhole covers. This kind of cast iron manhole covers have excellent performance in terms of anti-compression and shock resistance, and anti-corrosion and wear-resisting capabilities. Therefore, the busy traffic It is better to choose ductile iron manhole covers on the road. Then the correct installation of ductile iron manhole covers is very important. The following are the precautions for use.

For cement roads: when installing nodular cast iron manhole covers on the cement pavement, use concrete to cast 20 cm thick ring beams on the brick masonry of the well head and smooth it. The concrete protection ring ensures that no looseness occurs.

For asphalt road: Asphalt pavement is paved with construction machines. It is necessary to avoid direct rolling of the well base by construction machines. When casting asphalt, the road surface should reserve a certain space for the wellhead, and install it after the asphalt pavement is paved. manhole cover.

For the beauty of the road surface: when choosing to install cast iron manhole covers, you should also consider its aesthetics. Don’t buy some inferior steel or second-hand cast iron manhole covers just to save money. This will not only have hidden dangers in quality, but also affect special The aesthetics of the environment, for example, the place itself is clean and hygienic, because a dilapidated manhole cover will affect the overall aesthetics of the place.