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Recent content by FTCH

  1. FTCH

    Concrete Strength

    Thanks for your prompt response. My inquire was for Michigan DOT bridge project. MDOT specification requires minimum three days of curing or 70% of 3500 psi (28 days compressive design strength) prior to placement of any additional concrete on substructure concrete. Contractor is asking for...
  2. FTCH

    Concrete Strength

    Min compressive strength of concrete required before you apply any load of subsequent pour.
  3. FTCH

    Lifting Device for Prestressed Concrete Beam

    design procedure to calculate size and development length of lifting device strands

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