Manhole cover as an integral part of an engineering structure
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Reinforced concrete manhole cover with an opening for the hatch is an integral part of gas control manhole chambers, sewer manholes, network manholes, and drainage manholes. The application of reinforced concrete manholes and covers allows the arrangement of septic tanks, wastewater treatment structures, inspection manholes, mines, and other engineering communications. Precast manhole covers have the correct geometry and excellent strength properties through the use of high-quality metal fittings along with high-strength brands of concrete.
Concrete manhole covers are important elements of the manholes in terms of safety for surrounding people and animals. The installation of the cover allows preventing accidental ingestion of living beings inside the container, which can lead to accidents. The overlapping of the well using the reinforced concrete cover also ensures the reliable operation of the utility networks, protecting them against the negative influence by the environment (rain, snow), thereby prolonging their lifespan.
How to choose a manhole cover properly?
First, you need to find an approved vendor of the reinforced concrete products with a sufficient range of products offered. Then proceed to choose the shape and the dimensions of the product, by the dimensions of the wells, where the covers will subsequently be installed.
In most cases, concrete manhole covers are manufactured in round shape, but it is also possible to order products of square form. The prime component of the reinforced concrete product is heavy concrete of the B-15 brand, which possesses excellent strength and performance characteristics:
- strength class - M200;
- frost resistance parameter -F100.
The parameter of frost resistance shows that during 100 cycles of freezing/thawing, the concrete covers retain their primary physical and mechanical properties. The parameter of water absorption in the concrete covers should be not less than 6% so that they will not have absorbed the condensate that appears on the surface of the reinforced concrete structure.
"VILES" Company offers to purchase the manhole cover with diameters ranging from 900 to 3300 mm for the arrangement of utility lines.
All the products have certificates of conformity, and a warranty from the manufacturer is provided, too. Delivery of the products is carried out all over Ukraine directly to the customer’s construction site.