Manhole Cover Circular

Overview

Fibre Reinforced Plastic (FRP) manhole covers have become an alternative to traditional manhole covers made of materials such as cast iron, concrete or steel. FRP is a composite material that consists of a thermoset resin matrix reinforced with fibres such as carbon or glass. These covers offer several advantages over traditional materials, including lighter weight, higher strength-to-weight ratio, non-corrosive, non-conductive, and longer lifespan.

FRP manhole covers are designed with a load-bearing capacity that can withstand different types of vehicular and pedestrian traffic. They are also designed to prevent unauthorized access to the utility lines, underground storage tanks and other sensitive areas. FRP manhole covers come in different shapes and sizes, making them suitable for use in different applications such as sewer systems, drainage systems, and gas transmission lines.

FRP Manhole Cover - Circular

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Parameter Dudhi FRP Products
Application Green Belt, Sidewalk, Pedestrian, Driveway, Highway.
Surface Treatment Anti-Slip, anti-UV
Technique Mould pressing
Shape Circle, Square, Rectangular or Customize
Color Standard grey and as required on demand
Working Temperature -40°C to 120°C
Service Life More than 50 years
Working Condition Anti Corrosion, anti uv, anti acid and alkali, anti-rusts etc.
Conduction Non-electricity conduction and non-heat conduction
NoiseLess noise and lower vibration
PackingCarton and as per customer’s request

DescriptionCl RCCDudhi FRP
Life Span ModerateLow High
Strength Moderate Very LowVery High
CostModerate LowComparable to Cl
Weight Light HeavyLight
Manufacturing System Manually Casted Manually Compress Molecular Binding Technique
MaterialCast Iron Steel Fiber Reinforced Concrete Glass Fiber Re-inforced Polymer
Water Absorptive/24hours
High Water Absorptive High Water Absorptive 10-30 grm
Carbon Content 5-10 % Carbon Free
Scrap ValueHighLowNil(Zero Value)
Anti Acid/Alkaline
AffectedAffectedNot Affected
Colour Range
BlackConcrete GreyRange Available
Logo Embossing
Not AvailableNot AvailablePossible
FlexibilityBend with load Bend with load Come back in bending
Custom Design/Size
Not AvailableNot AvailablePossible
Handling
DifficultVery DifficultEasy Compressive
Strength
Not mentionedNot mentioned300-600 Mpa
Thermal Expansion
High NegligibleNil
Noise(vehicle movement)
Noise GenerateNoise GenerateNo Noise Generate
Break Elongation Ratio
More than 10%More than 30%1.3-10%
Corrosion Resistance Affected with short span Affected with short span No Corrosion Affected
Abrasion ResistanceNone None yes

Category
Description
ALoad 2.5T
(Point Load/Wheel load 0.8T)
Low
BLoad 5T
(Point Load/Wheel load 2.5T)
Very Low
CLoad 10.0T
(Point Load/Wheel load 3.0T)
Low
DLoad 20.0T
(Point Load/Wheel load 5.0T)
Heavy
ELoad 40.0T
(Point Load/Wheel load 11.5T)
Manually Compress

DescriptionDudhi Manhole Cover
Longitudinal strength 250-600 Mpa
Compressive strength 300-600 Mpa
Stretch modulus 25-35 Gpa
Break elongation ratio 1.3-10.0%
Bending strength 700-1400 Mpa
Poisson-ratio 0.35
Relative density 1.11-1.15
Water-absorvation (24h) 10-30 mg
General Application (Working Temperature) -40°C~120°C

Features

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