Home / News / News

Composite Manhole Cover Application Notes

Nov. 18, 2021

Composite Manhole Cover

 

The composite manhole cover mainly uses polymer as the base material, mainly adopts unsaturated resin as the main chemical raw material, and composites various materials. The high temperature and high-pressure one-time molding technology have a high polymerization degree, high density, and good impact resistance. And tensile strength, with wear resistance, corrosion resistance, no rust, maintenance-free.

 

What inspection work should we do for installing the composite manhole cover?

Before the installation of the composite manhole cover, the foundation of the manhole cover should be neat and sturdy. The inner diameter and the length and width should be determined according to the size of the manhole cover.

When the manhole cover is installed on the cement pavement, it is necessary to pay attention to the concrete pouring on the masonry of the wellhead and to build a concrete protection ring on the periphery for maintenance for about 10 days. In order to maintain the beauty of the manhole cover and the clarity of the writing and pattern, it is necessary to pay attention to not to soil the manhole cover when pouring asphalt and cement on the road surface.

When the composite manhole cover is installed on the asphalt pavement, care must be taken to avoid the construction machinery directly crushing the manhole cover and the good seat to avoid damage. When the pavement is integrally cast, a hole slightly larger than the good seat should be reserved on the road surface and placed after the asphalt is laid.

 

What inspection work should we do after installing the composite manhole cover?

1. Determine the elevation of the top surface of the inspection brick according to the thickness of the composite/fiberglass manhole cover and the height requirement of the top surface of the green belt.

2. Inspect the brick masonry of the well, and select the composite/fiberglass manhole cover with the suitable inner diameter according to the size of the inspection well of the design atlas.

3. After checking the elevation of the top surface of the brick, no problem is applied to the top surface of the brickwork. Use 1:3 cement mortar to sit 2cm thick cement mortar at the position where the well is to be installed, then place the good circle and the inside of the well It should be leveled with mortar on the inner wall of the brickwork. The installation must keep the base flat, the base of the good ring is grounded, and it is stable and not loose.

4. Before the installation of the composite/fiberglass manhole cover in the green belt, it is required to fill the soil with a certain thickness in the green belt, so as not to affect the installation of the composite manhole cover and the concrete pouring of the good ring. The composite/fiberglass manhole cover in the motor vehicle lane needs to be laid after laying a layer of asphalt concrete. When paving a layer of asphalt concrete, the wellbore is covered with wood. After the asphalt concrete to be paved is cooled, the wood board is removed, and the asphalt concrete around the wellbore is trimmed and left. The size of the resin manhole cover and its reinforced concrete. And remove all impurities in the inspection well.

 

Find the best Composite Manhole Cover

Chuangxin Metal high-quality composite manhole covers are lightweight and manufactured from glass reinforced polyester resin.  They feature a non-slip tread pattern to the surface side which exceeds a Slip Resistance Value (SRV) of 80 and are produced in B125 (12.5 Tonne) and C250 (25 Tonne) vertical load capacities.  Standard sizes are available with a 90mm deep galvanized steel raising frame, allowing finished paving to be installed without the need for a concrete fillet. The Composite Cover frames provide height and tilt adjustment at surface level and are suitable for use in footpaths, car parks, grass verges, and areas with slow-moving traffic. We are composite manhole cover suppliers, If you are interested in our products, please feel free to contact us.

Delete
Chatting