compressive strength
compressive strength
(OP)
Dear Members,
What will you do as an engineer when the compressive strength has failed for 4th floor and the contractor has reached 8th floor?
What will you do as an engineer when the compressive strength has failed for 4th floor and the contractor has reached 8th floor?






RE: compressive strength
if the compressive strength is found to be correct do an assessment of the structure with the reduced compressive strength. once all the issues have been identified, figure out solutions.
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RE: compressive strength
if it's a big miss then does it become a harzardous work site ?
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RE: compressive strength
the first thing you need to do is determine a fair estimate of what f'c strength you have and recheck your analysis and designs of those areas with the lower f'c.
FAQ507-1575: How to Evaluate Concrete Tests per ACI 318
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RE: compressive strength
If it was a single cylinder from an undetermined location, you have a lot of analysis and work to do. If it was an average from a set of 3 cylinders, that would be more representative and reliable of the indicated strength.
If the difference between the specified and actual is dramatic, look at the sampling, handling and curing of the samples.
Dick
Engineer and international traveler interested in construction techniques, problems and proper design.
RE: compressive strength
RE: compressive strength
I may have erroneously assumed the"compressive strength" for concrete cylinders for a total concrete structure (columns and slabs) where strength specifications may have been different for the columns and slabs.
Is the structure totally concrete or is it a steel frame with concrete floor slabs?
The specifications, mix designs and sampling/testing information could avoid speculation.
Dick
Engineer and international traveler interested in construction techniques, problems and proper design.