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FLOWCELL™ Mine Backfill Saves Landfill
An operating landfill was subject to closing due to the potential subsidence of an abandoned underground mine lying beneath it. The patented Flowcell™ low moisture foam transport process was used to transport 115,000 tons of minus 3/8-inch crushed limestone waste material into the mine through strategically placed boreholes. The 115,000 tons of backfill material was transported and placed using less than 13% water. The fill material traveled via the foam transport method into the otherwise inaccessible mine up to distances of 500 feet from the injection boreholes. Essentially 100% of the 13-foot high mine rooms were filled utilizing the highly economical, pumpable foamed transport process, with filling to continue as the landfill continues to expand. For General Information Contact: Gary J. Colaizzi |
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