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Application and Performance of Composite Manhole Cover

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Technical description of material distinction and application scope of manhole cover
According to the material, manhole covers are divided into metal manhole covers: cast iron, ductile iron, bronze manhole cover, etc.; high strength steel fiber cement concrete manhole  cover (cement-based composite material); composite manhole cover, SMC / BMC composite manhole cover, glass fiber reinforced plastic manhole cover, resin manhole cover.
composite manhole cover
The application scope of manhole cover includes:
1. Domestic and industrial drainage: used in rainwater and sewage pipelines.
2. Water supply: used in tap water, fire engineering, etc.
3. Heating: used in heating arm line.
4. Power supply and communication: used in power supply cable, telecommunication engineering, telephone, communication cable pipeline.
5. Landscaping: it is applied to supporting comprehensive pipelines.
6. Gas: used in gas engineering, natural gas pipeline, etc.
7. Street lighting: used for power supply, lighting, cable and pipeline
With the GB / t23858-2009 manhole cover standard issued by the state in 2009, the new composite manhole cover product quality standard improves the load requirements of manhole cover, which is in line with the international standard en124. Since the implementation of the standard on February 1, 2010, the composite manhole cover is defined as a kind of inspection manhole cover, and its characteristics are explained: the popularity and application of inspection manhole cover made of polymer as matrix material, reinforced material, filler, etc. through certain process. The polymer composite manhole cover has the advantages of light weight, high strength, good fatigue resistance, good damage safety, superior molding technology, low rolling noise, no corrosion, acid and alkali resistance, and beautiful appearance. It has become an ideal substitute for cast iron manhole cover.
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