strength or the measured is unavoidable given the inherent randomness of in-place concrete strengths and the uncertainty attributable to preparation and testing of the specimen, may …

These criteria specify the circumstances when core tests are permitted, the number of cores to be tested, the conditioning of the cores before testing, the limits on the time interval between …

Low Strength Results and Core Testing Q. Lower-than-specified compressive strength was determined from results of cylinder testing of one concrete placement on our project. How can …

While coring and load testing may be considered nondestructive, they are excluded from this report. Refer to ACI 437R for more information about strength evaluation of existing concrete …

Technical Questions ACI Committees, Membership, and Staff have answered common questions on a variety of concrete related topics. Low-strength cylinder test results Q. If a structure is …

This guide summarizes practices for obtaining cores and interpreting core compressive strength test results. Factors that affect in-place concrete strength are reviewed so sampling locations …

Technical Questions ACI Committees, Membership, and Staff have answered common questions on a variety of concrete related topics. Using core strength to calculate compressive strength …

American Concrete Institute

In-place concrete strength from core testing: Generally, test specimens are obtained when doubt exists about the in-place concrete quality due either to low strength test results during …

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