ASTM C823
Full Name
ASTM C823 – Standard Practice for Examination and Sampling of Hardened Concrete in Constructions
Scope
ASTM C823 provides a framework for the examination and sampling of hardened concrete in existing structures. It is not intended for prefabricated units, precast products, or laboratory specimens.
Key aspects covered by ASTM C823:
- Purpose: the primary purpose is to provide guidance on how to assess the condition of hardened concrete in structures, identify any signs of distress or deterioration, and determine the extent of any damage.
- Examination: the standard outlines procedures for visual examination, including documenting existing conditions, observing signs of distress, and conducting preliminary tests. It also provides guidance on petrographic examination and other specialized tests.
- Sampling: the standard details the methods for selecting representative samples of hardened concrete for further testing in a laboratory. It addresses the number, size, and location of samples, as well as safety precautions.
- Reporting: The standard provides guidelines on reporting the findings of the examination and sampling, including documenting the visual observations, test results, and any recommendations for further investigation or remedial action.
ASTM C823 is a valuable resource for engineers, inspectors, and other professionals involved in evaluating the condition of existing concrete structures. It provides a systematic approach to examination and sampling, ensuring that the data collected is reliable and can be used to make informed decisions about the repair, rehabilitation, or maintenance of the structure.
ASTM C823 Accredited Laboratory
Applied Testing & Geosciences, LLC is accredited for performing tests using the ASTM C823 standard.
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Resources
Keywords
hardened concrete; examination; sampling; construction; visual examination; petrographic examination; distress; deterioration; cores; sampling plan