Containment / Bund Lining | Acacías-Meta, Colombia

Improving containment to reduce permeability and erosion

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Project Overview

In July 2023, CC Hydro^™ GCCB was used to line and remediate secondary containment bunds at a crude oil storage facility in Acacias-Meta, Colombia. Both existing lined and unlined secondary containment bunds were becoming damaged due to erosion caused by rainfall and wind.

Bund Lining Process: Regrading, Cutting, Vertical CCHT1^™ Placement and Thermal Welding

2250m²

of CCHT1^™ used to upgrade secondary containment bunds

20 Days

to install in adverse weather conditions

17 Bulk Rolls

used for remediation

Solution

To prevent the bunds from eroding and to reduce their permeability, a number of solutions were suggested. One solution was poured in-situ concrete. However, the solution would have required the facility to shut down part of its operations to allow for specialist equipment to come onto site and install. CC Hydro ^™ was chosen due to its ease of handling, safety during construction, its high impermeability and environmental durability. CC Hydro^™ was also chosen because of its lower environmental impact (Global Warming Potential) when compared to poured in-situ concrete, complying with the client’s new environmental compliance policies to satisfy the regulatory requirements of the Colombian National Environmental authority.

Additional welding strips used at intersections

CHT1^™ cut to accomodate pipe penetrations

Design & Installation

Bunds graded and cleared of vegetation
CCHT1^™ Bulk Rolls delivered, stored and cut to length
Material placed by hand on bunds
Joints thermally welded and pressure tested
Secured in toe anchor trenches
Terminations to concrete fixed with stainless screws anchors and covered with concrete
Hydrated with bowser, rehydrated hourly and after 24hrs

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Battons used to flatten joints after hydration

Summary

A total of 2,250m² of CCHT1^™ was installed in under 20 days despite very adverse weather conditions. Not only was the project delivered on time, even with delays caused by heavy rain fall, but the project was undertaken with locally sourced personnel, enabling the capital expenditure to remain largely within the area. Following the successful completion of this project, additional orders for CCHT2^™ and CCX-M^® were issued to address other bunds and ditch lining installations on site.

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