The Ahafo Mill Expansion (AME) Project at a Newmont Ghana Gold Limited (NGGL) site in Ahafo, Ghana will increase mill capacity to ten-million tonnes.

As part of the expansion, a slope protection solution was required for slopes adjacent to a new reinforced soil wall, as well as protection of earth wall footings and lining of slope toe drains to manage runoff.

CC was specified as it could provide the client with a rapid and easy-to-install solution as well as meeting their requirements for limited exposure, safe working conditions and technical competency.

The slope varied in length between 5m and 30m, with gradients between 1:1.5 and 1:1. The toe drain measured approximately 2m wide.