Standard Test Method for Compressive Strength of Masonry Prisms
砖石棱柱抗压强度的标准试验方法
发布日期:
2023-12-01
1.1
本试验方法包括砌体棱柱结构和试验程序,以及确定砌体抗压强度试验程序,
f
mt
,用于确定是否符合规定的砌体抗压强度,
f ′
m
.当该试验方法用于研究目的时,其中的施工和试验程序可作为指导,并提供控制参数。
1.2
本试验方法还包括测定从现场移除的砌体样品中获得的棱柱抗压强度的程序。
1.3
本标准的文本是指提供解释性材料的注释和脚注。
这些注释和脚注(不包括表和图中的注释和脚注)不应被视为本标准的要求。
1.4
以英寸磅为单位的数值应视为标准。括号中给出的值是国际单位制的数学转换,仅供参考,不被视为标准。
1.5
本标准并不旨在解决与其使用相关的所有安全问题(如有)。本标准的使用者有责任在使用前制定适当的安全、健康和环境实践,并确定监管限制的适用性。
1.6
本国际标准是根据世界贸易组织技术性贸易壁垒委员会发布的《关于制定国际标准、指南和建议的原则的决定》中确立的国际公认的标准化原则制定的。
====意义和用途======
4.1
该试验方法提供了一种方法来验证建筑中使用的砌体材料是否能产生符合规定抗压强度的砌体(
注1
)。
注1:
棱镜是用于测量(在这种情况下,
f
mt
)或验证特性(在这种情况下,
f’
m
)。棱镜测试可能是项目现场质量控制或保证计划的一部分。在这些情况下,棱柱作为砌体构件(例如,砌体墙、柱、壁柱或梁)的附属构件,在现场建造砌体构件的工地上,或在工厂或车间内建造。虽然这些棱镜可用于确定是否符合砌体的规定抗压强度,
f’
m
,它们不打算复制或建模的所有性能或设计属性-
内置元素。棱镜也可以在实验室中制造用于研究目的(
附录X2
)。在每种情况下(现场或研究),测试程序的结构应确保砌体组件测试抗压强度(
f
mt
)以精确且可重复的方式进行测量。
4.2
该试验方法提供了一种评估现浇砌体结构抗压强度特性的方法,通过对根据实践取样时从该结构中获得的棱柱体进行试验
C1532/C1532米
在准备此类现场移除棱镜进行测试、确定净面积和解释压缩测试结果时所做的决定需要专业判断。
4.3
如果该试验方法被用作进行研究的指南,以确定各种棱柱结构或试验参数对砌体抗压强度的影响,则应报告与该试验方法的偏差。此类研究棱镜不得用于验证是否符合规定的砌体抗压强度。
注2:
执行此测试方法的测试实验室应根据实践进行评估
C1093
。
4.3.1
附录X2
包括研究人员在材料、结构和分析方面的指导信息。
1.1
This test method covers procedures for masonry prism construction and testing, and procedures for determining the tested compressive strength of masonry,
f
mt
, 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 text of this standard refers to notes and footnotes that provide explanatory material. These notes and footnotes (excluding those in tables and figures) shall not be considered as requirements of the standard.
1.4
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.
1.5
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.
1.6
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.
====== 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 (
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
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 2:
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.