Quantifying the Increase in Adhesion Strength of Shotcrete Applied to Surfaces Treated with High-Pressure Water

Details

• Personal Author:
  Kuchta ME
• Description:
  Research is currently being conducted at the Colorado School of Mines in the use of high-pressure water for scaling down loose rocks in underground mine openings. In addition to improved miner safety, the adhesion strength of shotcrete applied to rock surfaces treated with high-pressure water is also increased significantly, resulting in improved overall support capabilities of the shotcrete layer. Test results show an increase in adhesion strength by a factor of four on a concrete test wall cleaned with water at 21 MPa (3,000 psi) as compared to a surface cleaned at 0.7 MPa (100 psi). [Description provided by NIOSH]
• Subjects:
  Engineering Mining Occupational Health Safety Safety Management Workplace
• Keywords:
  Control Methods Control Technology Engineering Controls Ground Control Mining Equipment Mining Industry Rock Mechanics Safety Measures Safety Monitoring Safety Practices Underground Mining Work Areas Work Environment Work Practices

  More +
• Publisher:
  Society for Mining, Metallurgy, and Exploration, Inc.
• Document Type:
  Text
• Funding:
  Cooperative Agreement
• Genre:
  Proceedings
• Place as Subject:
  Colorado ; OSHA Region 8
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  1-4
• NIOSHTIC Number:
  nn:20053649
• Citation:
  2002 SME Annual Meeting, Feb 25-27, Phoenix, Arizona, preprint 02-035. Littleton, CO: Society for Mining, Metallurgy, and Exploration, Inc., 2002 Feb; :1-4
• Federal Fiscal Year:
  2002
• Performing Organization:
  Colorado School of Mines
• Peer Reviewed:
  False
• Start Date:
  19990901
• Source Full Name:
  2002 SME Annual Meeting, Feb 25-27, Phoenix, Arizona, preprint 02-035
• End Date:
  20050831
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:ce8dca0766e02900bb0f94f64ad760584d73e2f6b9a63e95590cbf8fa8a2222e1a78d37ff5b5ff2e72ad9ce3488fbbb6a20e61996bf7c818317c81c0ecfc81f1
• Download URL:
  https://stacks.cdc.gov/view/cdc/216369/cdc_216369_DS1.pdf
• File Type:
  [PDF - 113.59 KB ]