Standard Test Method for Compressive Strength of Masonry Prisms

Importancia y uso:

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 (Note 1).

Note 1: A prism is an assembly of components used to measure (in this case, the tested compressive strength of masonry, f _mt) or verify a property (in this case, the specified compressive strength of masonry, f '_m). Testing of prisms may be part of a project’s field quality control or assurance program. In these cases, prisms are built as companions to a masonry element (for example, a masonry wall, column, pilaster, or beam) at a jobsite where the masonry element is site-constructed, or within a factory or shop where the element is shop-built. While these prisms can be used to determine compliance with the specified compressive strength of masonry, f '_m, they are not intended to replicate or model all of the performance or design attributes of the as-built element. Prisms may also be fabricated in a laboratory for research purposes (Appendix X2). In each scenario (field or research) the test procedures are structured so that masonry assembly tested compressive strength (f_mt) is measured in an accurate and repeatable manner.

4.2 Refer to Annex A1 for provisions for dry-stack masonry prisms.

4.3 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.

4.4 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 2: The testing laboratory performing this test method should be evaluated in accordance with Practice C1093.

4.4.1 Appendix X2 includes guidance information for the researcher on aspects of materials, construction, and analysis.

Subcomité:

C15.04

Referida por:

C0901-18, C1825-19, D7147-21, C1716_C1716M-24, C1587_C1587M-21A, C1093-23, C1552_C1552M-23A, C0090-24A

Volúmen:

04.05

Número ICS:

19.060 (Mechanical testing), 91.080.30 (Masonry)

Palabras clave:

tested compressive strength of masonry (fmt); masonry prism; masonry prism strength; masonry specimen; specified compressive strength of masonry (f ′m);