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.
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...
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...
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...
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...
