Main Characteristics Of Manhole Cover

Oct 14, 2022

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technical parameter

Technical parameters Test load: heavy 400KN, common 250KN, light 125KN [1]

Bending strength: average 22MPa Impact strength: average 10J/m2

Water absorption: 1%

Acid resistance: 20% of the sample

Soak in sulfuric acid solution for 48h

No corrosion on the surface, mass loss 1%