Richmond Ready Mix Reynolds Metals operates an aluminum recycling plant at their facility in Richmond, Virginia. In 1993, Reynolds was having a problem with outside paving breaking up, prompting them to contact Tarmac.
Salt draws the aluminum out of the raw material but also deteriorates concrete.
The concrete in front of their 'salt shed' is a high traffic area for fork lifts, as well. Reynolds was having to replace this concrete every three years. Holder suggested using silica fume concrete as a test area. Silica fume is the residue created by gas burning smoke stacks. It's a pozzolanic material, meaning it causes extremely high strength and density with low permeability.