30 Million Cubic Metre Dam – Hemerdon Tungsten Project, UK

The project was to build and engineer a complex tailings dam earth structure from waste from open cast mining activities. ACS were contracted in August 2014 to supply a UKAS accredited laboratory service in the form of a full site laboratory including a combination of senior technicians and geologists.

ACS tested the waste materials for various physical and chemical proprieties to establish the potential use on site by categorising the material into the areas in which it could be used. This enabled a fast response to changing source material types and weather conditions.

ACS were also on site to conduct regular quality assurance testing of placed materials including, but not limited to; particle size distribution, moisture content, density and permeability both by in situ and laboratory testing methods.