Slope Protection | Texas, USA

CCX-M^® Installed to prevent rain water run-off from eroding a nearby slope

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Project Overview

In February 2020, Concrete Canvas^® GCCM* was specified for a project in Ras Al Khair, Saudi Arabia, where an erosion prevention measure was required for embankment side walls.

The site is owned by the client Ma’aden Aluminium, a joint venture between mining company Ma’aden and American aluminium production company ALCOA. The client required a solution which could provide bank erosion protection to a newly constructed RSA (residue storage areas) pond which would be used to store Bauxite liquor produced by the company. Two ponds had already been constructed and were in operation; however, it had been witnessed in the existing ponds that winds would create waves in the stored liquor which would then cause erosion of the slopes over time, exposing the lining beneath the soil and damaging any existing infrastructure such as pipe sleepers at the crest of the slope.

Slope re-graded prior to install, CCX-M^® deployed vertically, overlaps secured using galavanised pegs

30000ft²

of CCX-M^® used to provide erosion protection

5 Days

to complete installation

7 Installers

installed up to 7 rolls per day

Solution

The slope had previously been protected from erosion using asphalt. The asphalt needed replacing and, due to the size and difficult location this was both a costly and time consuming solution to reuse asphalt again. As the client who owned the facility was looking for a more cost-effective and rapid solution, CCX-M^® was specified.

Using CCX-M^® for the project eliminated the need for specialist labor or equipment and would provide a long-term and low mainteance solution to a difficult to access area.

CCX-M^® secured within anchor trenches

Design & Installation

Old asphalt and vegetation growth removed, and slope regraded
CCX-M^® Bulk Rolls specified
Vertical layup
CCX-M^® installed from both sides of slope
Screwed joints
Water truck used to hydrate material
Anchor trenches backfilled

Section of CCX-M^® hydrated

Summary

Although access restrictions posed a challenge for the project, the installation as a whole was deemed a success with 30,000ft² of CCX-M^® installed in 5 days (8 hour shifts) by a team of 7 installers from RSI. For the larger sections of the site, the team were able to install 7 rolls of CCX-M^® per day. Areas that were odd shapes and required a lot of cutting, an installation rate of 3-4 rolls per day was normal.

Both the client and the contractors were pleased with the simplicity of which CCX-M^® was installed. 6 weeks after the installation was completed, the slope was exposed to 2 severe storms and noted that the material performed excellently, providing the required erosion protection.

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