Sewer Composite Manhole Rehabilitation Method "Eba Sheet Method"

No special skills required! A sewer composite manhole rehabilitation method that can be constructed with a small road occupancy area.

The "Evashito Method" is a composite manhole rehabilitation technique that involves attaching an "FRP sheet" to the inner wall of an existing manhole that has advanced corrosion, using an expansion frame, and filling the gap between the sheet and the existing manhole with mortar. With a thickness of 1.5mm for the FRP sheet, the method promises increased longevity through enhanced corrosion resistance and durability, while the filling material, a non-shrink mortar, maintains strength over the long term. Additionally, there is no need for heavy machinery, and no special skills are required, allowing for construction in a small road occupancy area. By utilizing the existing manhole, material savings are achieved, resulting in excellent economic efficiency along with shortened construction periods. 【Features】 ■ Demonstrates strong robustness through complete integration with the existing manhole ■ Filling material maintains strength over the long term with non-shrink mortar ■ Can be constructed in a small road occupancy area ■ Achieves material savings by utilizing the existing manhole ■ Passes acid resistance and sulfur intrusion tests *For more details, please refer to the PDF document or feel free to contact us.

Sewerage facilities