Significance and Use

The examination may provide a basis for laying out in situ testing of the concrete.

The sampling can provide materials for petrographic examination, in accordance with Practice C856 , chemical or physical analytical procedures, or any of a wide variety of destructive or nondestructive tests to determine physical, mechanical, or structural properties of the concrete.

The results of examination and sampling carried out in accordance with this practice may be used for a variety of purposes and to serve a variety of objectives, some of which are discussed in the Procedural Plan Section.

1. Scope

1.1 This practice outlines procedures for visual examination and sampling of hardened concrete in constructions. Reference is made to the examination and sampling of concrete in prefabricated building units, precast products, and laboratory specimens.

1.2 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.

1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

ASTM Standards

C42/C42M Test Method for Obtaining and Testing Drilled Cores and Sawed Beams of Concrete

C125 Terminology Relating to Concrete and Concrete Aggregates

C215 Test Method for Fundamental Transverse, Longitudinal, and Torsional Resonant Frequencies of Concrete Specimens

C295 Guide for Petrographic Examination of Aggregates for Concrete

C457 Test Method for Microscopical Determination of Parameters of the Air-Void System in Hardened Concrete

C597 Test Method for Pulse Velocity Through Concrete

C670 Practice for Preparing Precision and Bias Statements for Test Methods for Construction Materials

C856 Practice for Petrographic Examination of Hardened Concrete

E105 Practice for Probability Sampling of Materials

E122 Practice for Calculating Sample Size to Estimate, With Specified Precision, the Average for a Characteristic of a Lot or Process

E141 Practice for Acceptance of Evidence Based on the Results of Probability Sampling

Keywords

construction; coring; deterioration; exposure condition; field inspection; hardened concrete; performance; petrographic examination; photograph; representative sample ; Construction; Deterioration; Field testing--concrete/aggregates; Hardened concrete; Performance--building materials/applications; Petrographic analysis; Pre-engineered buildings; Sampling concrete/mortar/aggregates; Structural concrete

ICS Code

ICS Number Code 91.100.30 (Concrete and concrete products)

DOI: 10.1520/C0823_C0823M-12

ASTM International is a member of CrossRef.

ASTM C823 / C823M