The contractor is trying to avoid puddling but the EOR is asking for additional concrete backup data that I am a little confused on. Below is the correspondence between the Contractor and the EOR. All help will be really appreciated.
Will slab puddling be required at verticals with a greater than 1.4fc to elevated slab
concrete? The specified elevated slab concrete is 5000 PSI, but due to schedule the
shell contractor will be using a mix designed to reach 3000 PSI within 24 hours. The
average elevated slab strength at AC Marriott yielded between 7000 to over 8000
In order to use the anticipated slab strength to avoid puddling, as requested in the
RFI, the concrete submittal needs to include the ACI appropriate data confirming
the 1.4f'c threshold will be reached by the slab concrete. ACI requirements have
statistical variability requirements beyond just the historic break values to be rated
for a desired strength.
If the above is not provided, puddling will be required.