What is the recessed manhole cover and its purpose:
In generally, just like a regular manhole cover, such as a cast-iron drain cover, these products cover and protect manholes and drains by locking into the ground. They can be easily removed for maintenance. A recessed manhole cover performs the same function but they have a tray for filling with other materials.
The purpose of a recessed manhole cover is to allow safe and functional access to drains and sewers without compromising on looks.
Whereas a regular manhole cover will look like a regular manhole cover, recessed covers feature a tray that can be filled with all types of material depending on where the cover is. For example, in a hospital, you can fill the recess tray with epoxy resin that matches the hospital corridors. This can reduce the risk of slipping on the cover, keep a hygienic, sanitized area and it keeps a theme. A big black manhole cover in the middle of a grey reception area will be out of place.
How to fill a recessed manhole cover:
Recessed manhole covers come with an in-built tray that you can fill with whichever substrate you choose. You fill this tray based on the depth that your chosen cover can handle.
For example, an 80mm deep tray will hold 60mm block paving externally. If your paving is 60mm then opt for an 80mm tray so that you can give the paving a solid 20mm concrete bedding. This is needed so that the content stays put.
The most common loading capability:
Manhole covers come in load classes to denote how much weight each type can take. Different materials, dimensions, shapes and manufacturers all produce different results and maximum load capacities for their manhole covers so it’s paramount that you check this. However, all manufacturers use the same ‘measuring stick’ when it comes to load classes so the most common selected is B125. It accepts to take your pick from those displayed without worry.
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