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  1. Sean_14

    Thick Concrete Wall Crack Prevention

    Yes we can repair cracks post pour. The hope is to reduce those as much as possible.
  2. Sean_14

    Thick Concrete Wall Crack Prevention

    @centondollar No the structure has been specifically designed with these dimensions for its use. I cannot discuss the use exactly. Only the dimensions and crack resistance is very important.
  3. Sean_14

    Thick Concrete Wall Crack Prevention

    Yea I understand the cracks are inevitable but they have to be small and not allow leakage. I know the reinforcement ratio will have to increase as well. I will have to really look into ACI 350. @centondollar, I cannot comment on what this will be used for. Only that this will be a room and will...
  4. Sean_14

    Thick Concrete Wall Crack Prevention

    I am working on a project that requires a 36in thick concrete wall about 10ft tall. This wall cannot have cracks. How can I modify this design to prevent cracking? I am sure the right rebar selection is key as well as the mix. Not sure where to start.
  5. Sean_14

    Backfilling with Stone

    Yes the back filling with DGA would be on the low side of the wall.
  6. Sean_14

    Backfilling with Stone

    I have a situation where there is a CMU retaining wall that out the outside has about 6ft of soil higher than the inside. The wall has approximately a 40" deep footing (from the inside)only 2'x1'. On the inside 2ft worth of soil must be excavated due to contamination. The contractor wants to put...
  7. Sean_14

    Airport Runway Loading

    I am working on replacing sections of a concrete slab on a Naval Aircraft Runway. I am trying to determine the required psi of concrete and best mix to use. Which code would I use to determine the required specifications. I have been looking into AASHTO, FAA, and DOA for information and have not...
  8. Sean_14

    CMU Block Web Cracking

    That was my original thought but why is there no cracking present on the face of the CMU?
  9. Sean_14

    CMU Block Web Cracking

    I have a basement foundation wall below grade in an area to be know to have a high water table. The wall is about 15' in length and was starting to bow about 0.5". We removed the top few courses of hollow 12" CMU and noticed that all of the CMU blocking has cracking in the interior webs. No...
  10. Sean_14

    12" Diameter Concrete Piers

    I am designing a staircase outside climbing a hill and due to clearance issues for installation the client wants to use 12" diameter piers roughly 5' in height (3' into the ground). The load is minimal about 3 kip vertical but I am concerned about spalling and the rebar fitting with enough...

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