Gabion Reinforcement | Derby, UK

Flood Defence Remediation for River Derwent with CC13^™

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Project Overview

In March 2012, Concrete Canvas (CC) GCCM was used to remediate gabion defences along the River Derwent in Derby, UK to protect against flood waters. Over time, these defences suffered from erosion, vandalism and degradation caused by prolonged UV exposure. The integrity of the structure was compromised, making remediation essential to restore its protective function.

Gabion Repair Works: Replacing Damaged Sections with Pre-Cut CC13^™, Re-Bar Staple Fixing and Hog Ringing

CC13™

used to remediate degraded gabion flood defences

20m

Pe-cut hand portable Batched Rolls used

2 Layers

Vertical double-layer system hogringed for added durability

Solution

To address the degradation, Concrete Canvas^® (CC) was selected to reinforce and remediate the damaged gabion walls.

Flush seamed joints between hog ringed CC layers

Design & Installation

CC13^™ Bulk Rolls specified
Material deployed in pre-cut 20m Gabion lengths
Vertical double-layer system installed
Re-bar staples used to secure CC directly onto gabions
Alternative fixings included pig-tail anchors and wire ties, applied depending on access and equipment availability
Pneumatic hog-ringing used where compressors and tools were accessible
Toe anchor trench prepared and backfilled
Material fully hydrated

Hydrated CC prior to backfilling toe anchor trench

Gabion Section Completion: CC Lining with Pneumatic Hogringing, Pigtail and Wire Fixing Methods

Summary

The use of Concrete Canvas provided a rapid and effective solution for restoring the integrity of the River Derwent gabion flood defences. It offered long-term protection against further erosion and weather-related damage, extending the life and resilience of the flood barrier with minimal installation time and equipment requirements.

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