Thanks for all of the feedback. I just wanted to see if anyone who think like an engineer had thoughts on this whole ordeal since getting pressure from the field can make you think twice sometimes.
Another thing that I don't like is that the contractor used concrete with air entrainment...
Mix design information for the 2" line pump.
Strength: 4000 Psi 2” line pump With Mid Range
MATERIAL SOURCE DESCRIPTION SPEC. GRAV. WEIGHT YIELD C.F.
Cement Lafarge Type I 3.15 500 Lb. 2.55
Fly Ash Sefa Type F 2.53 94 Lb. 0..6
C. Agg. Winn #7 Limestone 2.65...
That is my thought, but you know how these things go. The customer starts seeing if they can keep their contractor on schedule and starts asking if they can do this or that. I was considering taking the route of telling them that the elevated slab (over composite deck, 8' spans or so) needs to...
Additional Information:
ACI 22.1.1.1 states that 2500psi is he minimum compressive strength of "structural concrete".
Of course ACE 22.1.1.2 states "It is not within the scope of this code to provide design and construction requirements for nonstructural member of plain concrete such as...
I have a question about construction of floor slabs and whether or not a much lower strength than specified would be an issue to other structural engineers. I have a project that has a small elevated slab as well as some of the slab on grade that came back with f'c test results of around 2200...
I have a quick and hopefully easy question. Most company's structural steel specifications indicate that primed steel members cannot be embedded in concrete. Is there a particular reason for this? I can see it making sense in a case where you are relying on bond but why would it apply to...
An interesting question was raised today when looking at an RFP for a project. In this project, originally 3/16" welds, 3" long, were specified for the purpose of welding bar joists to a beam flange based on minimum requirements of the AISC code. However, many bar joists that are used today...
