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  1. MDGREENWRLD

    pre-cast mixer styles with cellular, foamed concrete

    The options that exist for pre-cast, wet processes include A) horizontal shaft, B) pan and C) planetary style mixers. The cost of these options increase from A) to C). Our application is a low-density (65 pcf) mix that has a need to fold cellular foam into the mix at the last step. When...
  2. MDGREENWRLD

    psi required to remove lightweight concrete from molds

    We have a cellular, foam entrained mix for a pre-cast panel application that has about 45-55% air by volume. Ultimate strengths needed are 1200-1500 psi, and we can hit 550 psi within 24 hrs. At what strength can we effectively break out product from the molds? This can obviously be verified...

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