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ASTM C1314 - 21
Standard Test Method for Compressive Strength of Masonry Prisms
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Significance and Use
4.1 This test method provides a means of verifying that masonry materials used in construction result in masonry that meets the specified compressive strength.
4.2 This test method provides a means of evaluating compressive strength characteristics of in-place masonry construction through testing of prisms obtained from that construction when sampled in accordance with Practice C1532/C1532M. Decisions made in preparing such field-removed prisms for testing, determining the net area, and interpreting the results of compression tests require professional judgment.
4.3 If this test method is used as a guideline for performing research to determine the effects of various prism construction or test parameters on the compressive strength of masonry, deviations from this test method shall be reported. Such research prisms shall not be used to verify compliance with a specified compressive strength of masonry.
Note 1: The testing laboratory performing this test method should be evaluated in accordance with Practice C1093.
4.3.1 Appendix X2 includes guidance information for the researcher on aspects of materials, construction, and analysis.
1. Scope
1.1 This test method covers procedures for masonry prism construction and testing, and procedures for determining the compressive strength of masonry, fmt, used to determine compliance with the specified compressive strength of masonry, f ′m. When this test method is used for research purposes, the construction and test procedures within serve as a guideline and provide control parameters.
1.2 This test method also covers procedures for determining the compressive strength of prisms obtained from field-removed masonry specimens.
1.3 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.
1.4 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
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
C67/C67M Test Methods for Sampling and Testing Brick and Structural Clay Tile
C136/C136M Test Method for Sieve Analysis of Fine and Coarse Aggregates
C140/C140M Test Methods for Sampling and Testing Concrete Masonry Units and Related Units
C143/C143M Test Method for Slump of Hydraulic-Cement Concrete
C144 Specification for Aggregate for Masonry Mortar
C270 Specification for Mortar for Unit Masonry
C476 Specification for Grout for Masonry
C780 Test Method for Preconstruction and Construction Evaluation of Mortars for Plain and Reinforced Unit Masonry
C1019 Test Method for Sampling and Testing Grout for Masonry
C1093 Practice for Accreditation of Testing Agencies for Masonry
C1180 Terminology of Mortar and Grout for Unit Masonry
C1232 Terminology for Masonry
C1532/C1532M Practice for Selection, Removal, and Shipment of Manufactured Masonry Units and Masonry Specimens from Existing Construction
C1552 Practice for Capping Concrete Masonry Units, Related Units and Masonry Prisms for Compression Testing
C1587/C1587M Practice for Preparation of Field Removed Manufactured Masonry Units and Masonry Specimens for Testing
C1716/C1716M Specification for Compression Testing Machine Requirements for Concrete Masonry Units, Related Units, and Prisms
E105 Guide for Probability Sampling of Materials
E111 Test Method for Youngs Modulus, Tangent Modulus, and Chord Modulus
ICS Code
ICS Number Code 19.060 (Mechanical testing); 91.080.30 (Masonry)
UNSPSC Code
UNSPSC Code
Referencing This Standard
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DOI: 10.1520/C1314-21
Citation Format
ASTM C1314-21, Standard Test Method for Compressive Strength of Masonry Prisms, ASTM International, West Conshohocken, PA, 2021, www.astm.org
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