Many people are familiar with the advantages and characteristics of composite manhole covers, and the product has a high usage rate. In order to extend the service life of the product, we need to do a good job of maintenance. So, what are the precautions for product construction?

Composite manhole covers mainly use unsaturated resin as the main chemical raw material. After molding, it not only has high strength and beautiful appearance, but also has good electrical insulation performance, waterproofing, aging resistance, acid and alkali resistance, high strength, impact resistance, wear resistance, not afraid of sun and rain, anti-static, anti-theft and other characteristics. It is an ideal substitute for cast iron manhole covers. Composite manhole covers are lightweight, only half the weight of cast iron manhole covers. Easy operation, installation, maintenance, and replacement, reducing labor intensity.

Before installing the composite manhole cover, the foundation of the manhole cover should be firm, and the inner diameter, length, and width should be determined according to the size of the manhole cover. When pouring concrete around the wellhead, pay attention to protecting the concrete around the cement sheath and setting up a protective layer. When installing composite manhole covers on asphalt pavement, be careful to avoid construction machinery directly crushing the manhole covers and seats to avoid damage. In order to maintain the beautiful and clear handwriting and patterns on the manhole cover, be careful not to dirty the manhole cover when pouring asphalt and cement on the road.