Channel Lining | Sollentuna, Sweden

CCT2^® providing erosion control to a storm water drainage channel

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Project Overview

In September 2024 Concrete Canvas^® GCCM (CC) was used to provide erosion control to a storm water drainage channel in Sollentuna, Sweden.

The drainage channel was designed to collect rain-water run off from the top of a slope and transport it down into the below drainage system. However, over time the unlined drainage channel was becoming increrasingly damaged due to vegetation growth and erosion. To prevent further damage to the channel, clients SEOM VA-huvudman and Sollentuna municipality looked at a number of solutions.

1500mm²

of CCT2^® used to provide erosion control

7 Days

installation was completed by a team of 2

12 Rolls

Bulk Rolls was laid transversely across the channel

Solution

A rubber membrane was deemed unsuitable mainly because of environmental exposure reasons, but also because it would have been difficult to properly anchor it down to the substrate. A canal with L-shaped supports and a cast concrete bottom was considered, but the idea was abandoned because it made the structure too complex. Due to these options being unsuitable for the project, CCT2^® was chosen due to the material being is easier, faster and simpler to install whilst causing minimal impact to the surrounding environment.

Design & Installation

CCT2^® Bulk Rolls specified
Slope graded and compacted prior to deployment
Transverse layup
Screwed and sealed overlap joints
Perimeter edges secured in anchor trenches with steel pegs
Hydrated using a water bowser and hose

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Summary

The installation was completed by a team of 2 from Häv och gräv i Östergötland AB in just 7 days. With 4 days spent excavating the drainage channel and 3 days to install and hydrate 1,500m² of CCT2^®.

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