Contaminated Concrete Surface Layer Removal

  • J. M. Halter
  • R. G. Sullivan


Equipment is being developed to economically remove contaminated concrete surfaces in nuclear facilities . To be effective this equipment should minimize personnel radiation exposure, minimize the volume of material removed, and perform the operation quickly with the least amount of energy. Several methods for removing concrete surfaces are evaluated for use in decontaminating such facilities. Two unique methods especially suited for decontamination are described: one, the water cannon, is a device that fires a high-velocity jet of fluid causing spallation of the concrete surface; the other, a concrete spaller, is a tool that exerts radial pressure against the sides of a pre-drilled shallow cylindrical hole causing spallation to occur. Each method includes a means for containing airborne contamination. Results of tests show that these techniques can rapidly and economically remove surfaces, and leave minimal rubble for controlled disposal.


Concrete Surface Hydraulic Cylinder Nuclear Facility Surface Removal Airborne Contamination 
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Copyright information

© Plenum Press, New York 1979

Authors and Affiliations

  • J. M. Halter
    • 1
  • R. G. Sullivan
    • 1
  1. 1.Pacific Northwest LaboratoryBattelle Memorial InstituteRichlandUSA

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