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Recent content by Peabody

  1. Peabody

    screws safety factors

    I Am not sure what type of screw you are inquiring about. I think your asking about self tapping screws.I suggest that you contact the Indugtrial Fasteners Institute, Cleveland , OH 44114.
  2. Peabody

    Concrete Creep

    i have used, James G. MacGregor's, 'Reinforced Concrete-Mechanics and Design",Prentice-Hall,1988. Chapter 3, Materials, Section 3-5 "Time-Dependent Volume Changes",This section covers Creep,shrinkage and thermal expansion, with examples.
  3. Peabody

    Blasting Bedrock Next to Existing Structure

    The method I would use is called Controlled Blasting or Contour Blasting.It requires that you Line Drill along your building line.Line drilling consists of a row of holes, 2 or 3 inch diameter, spaced 2 to 4 diameters apart.These holes will not be loaded.The burden (distance from "line...

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