Confined-Aggregate-Concrete MEPCO Loading Dock Road, Morgantown, WV—A Case Study

Trucking from shale oil and gas development destructively impacts rural, low volume, farm-to-market roads. The options for repair and reconstruction are relatively few and involve large quantities of new stone. An emerging aggregate confinement technology is being used on industrial roadways with significant success. This U.S. and Canadian patented technology - trade-named, Mechanical Concrete® - physically confines aggregates within a thin-walled structural cylinder, creating a confined-aggregate-concrete, CAC. It creates a road base with a collection of open-ended, waste-tire-derived, cylindrical segments filled with crushed stone, i.e. tire-derived-geo-cylinders, TDGC. This physical confinement process creates a porous, virtually solid material with a minimum, lab proof-tested, load-supporting capacity in excess of 1380 kPa (200 psi). On June 20, 2011, MEPCO Mining, Morgantown, WV, reopened a gravel surface road at its Mon River dock, reconstructed with a CAC base. This road handles three hundred 36,364-kg (80,000-lb) coal trucks per day. Prior to reconstruction, this road required approximately 2 truckloads of new crushed stone per week for maintenance. The new road has consistently been maintained with 2 truckloads of new stone per month, a reduction in maintenance costs of over 75%. Stone filled, tire-derived geo-cylinders are a sustainable, economical alternative for reconstructing rural roads.


  • English

Media Info

  • Media Type: Digital/other
  • Features: Figures; Photos; References;
  • Pagination: pp 619-632
  • Monograph Title: Shale Energy Engineering 2014: Technical Challenges, Environmental Issues, and Public Policy

Subject/Index Terms

Filing Info

  • Accession Number: 01535282
  • Record Type: Publication
  • ISBN: 9780784413654
  • Files: TRIS, ASCE
  • Created Date: Jul 14 2014 3:01PM