Engineering Properties of Fiber-Reinforced and Polymer-Impregnated Shotcrete

Details

• Personal Author:
  Goris, John M. ; Poad, M. E. ; Serbousek, Maynard O.
• Description:
  Structural properties of steel-fiber-reinforced shotcrete and polymer-impregnated shotcrete, both plain and fiber-reinforced, were investigated by the federal Bureau of Mines, Spokane Mining Research Center. The research center has found that flexural strengths can be increased by as much as 106 percent, and splitting-tensile strength by 50 percent, by introducing randomly oriented steel fibers. A slight decrease of compressive strength was found in the fiber-reinforced shotcrete. Polymer-impregnated shotcrete exhibited a threefold to fourfold increase in compressive and splitting- tensile strength. The techniques of preparing shotcrete with the dry process, using both fast-set agents and regulated-set cement, are described, along with the results of physical-property testing. Flexural strengths for plain and fiber-reinforced shotcrete are also reported. Steel-fiber shotcrete is the more promising of the new structural materials for ground support, and additional research is recommended. [Description provided by NIOSH]
• Subjects:
  Occupational Health Safety
• Series:
  Mining Publications
• Subseries:
  Report of Investigations
• Document Type:
  Text
• Genre:
  Conference Publications ; Case Report
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Division:
  SRC - Spokane Research Center
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  1-25
• NIOSHTIC Number:
  nn:10000983
• NTIS Accession Number:
  PB-240695
• Citation:
  NTIS: PB 240 695; :1-25
• Federal Fiscal Year:
  1975
• Peer Reviewed:
  False
• Source Full Name:
  NTIS: PB 240 695
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:a67c907231803fb7f3e03e438eef5121206df5d63a2f3aca5c6a97af0e9ec00c4433608e858d6129c42fb899a4d42893fa5f2f6c569a8f22006826b75215f049
• Download URL:
  https://stacks.cdc.gov/view/cdc/237701/cdc_237701_DS1.pdf
• File Type:
  [PDF - 2.92 MB ]