Background Information
More than a year after the toxic waste spill at the Gold King Mine near Silverton, Colorado, the Environmental Protection Agency (EPA) recently named the mine as a Superfund site for remediation. A significant portion of the reclamation of this notorious mine would involve annular filling of portions of the mine for future operations.
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Project Details
This annular fill project required an especially strong and dense yet flexible product that would resist environmental degradation and provide long-term stability for the structure of the mine. The project specification required a material density of 500 psi. Local contractor Condeck chose to use Aerix Industries AERLITE-iX™ non-pervious cellular lightweight concrete (CLWC) as the annular fill products of the mine. The mine presented a unique challenge because of its remote location, requiring all of the equipment to be transported up steep, one-mile inclines. The four-person crew from Condeck installed 350 cubic yards of AERLITE-iX™ into the mine’s annular space, pumping it through a 2” hose for distances of up to 150 feet. The entire installation including mobilization into this remote area was completed in three short days.
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Aerix Added Value
The use of Aerix’s AERLITE-iX™ provided the density needed to stabilize this remediated mine, and offered the speedy installation that the EPA required to transform the Gold King Mine into a functional mine once again.
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