1.1 这些试验方法评估了由预制砌块建造的砌体的抗弯粘结强度（垂直于接缝）。引用了取样和测试程序，并定义了术语。规定了三种不同的试样制造方法，每种方法用于不同的目的: 1.1.1 第一种方法是“实验室制备试样的试验方法”。其目的是比较砌筑砂浆的粘结强度（在给定条件下）。例如，它可以用于在生产后检查砂浆产品的质量，或指示砂浆产品的粘结强度（在给定条件下），而不需要将产品与许多不同的单元组合进行测试。 它不代表现场条件。它使用标准混凝土砌块。砂浆按体积比的重量当量分批，并按规定的流量混合。棱镜使用夹具构建，并进行袋固化。 1.1.2 第二种方法是“现场制备试样的试验方法”。其目的是评估特定单位砂浆组合的粘结强度（在给定条件下），用于材料的施工前评估或施工期间的质量控制。 砂浆按常规配料，且未规定流量。棱镜按常规构造（无夹具），并进行袋式固化。 1.1.3 第三种方法是“从现有砌体中移除棱柱的试验方法”。其目的是评估从现有墙体中切割的棱柱的单位砂浆组合的粘结强度。 1.1.4 这三种方法并不一致，也不打算一致。它们旨在用于三个不同的目的。为了明确这一点，分别介绍了三种方法。 1.1.5 附录X1 提出了评估使用这些测试方法获得的粘结强度值的两个可能标准。这些可能的评估标准仅供说明，并非强制性的。 1.2 本标准文本指提供说明材料的注释和脚注。这些注释和脚注（不包括表和图中的注释和脚注）不应视为本标准的要求。 1.3 以英寸-磅单位表示的值应视为标准值。 括号中给出的值是对SI单位的数学转换，仅供参考，不被视为标准值。 1.4 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建立适当的安全、健康和环境实践，并确定监管限制的适用性。 1.5 本国际标准是根据世界贸易组织技术性贸易壁垒（TBT）委员会发布的《国际标准、指南和建议制定原则决定》中确立的国际公认标准化原则制定的。 =====意义和用途====== 5.1 本试验方法旨在比较砌筑砂浆的粘结强度（在给定条件下）。 5.2 例如，该测试方法可用于检查砂浆产品在生产后的质量的一个方面，或指示砂浆产品的粘结潜力，而无需将产品与许多不同的单元组合测试。 5.3 本试验方法使用受控的制造和固化条件，这些条件不代表现场条件。 5.4 本试验方法使用标准混凝土砌块。砂浆按体积比的重量当量分批，并按规定的流量混合。棱镜使用夹具构建，并进行袋固化。 5.5 本试验方法确定的弯曲粘结强度不得解释为墙体的弯曲粘结力（因为标准构件不用于墙体施工），也不得解释为透水性评估中粘结程度的指示。

1.1 These test methods evaluate the flexural bond strength, normal to the bed joints, of masonry built of manufactured masonry units. Sampling and testing procedures are referenced, and terms are defined. Three different specimen fabrication methods are specified, each for a different purpose: 1.1.1 The first method is the “Test Method for Laboratory-Prepared Specimens.” Its purpose is to compare the bond strengths (under the given conditions) of masonry mortars. It could be used, for example, to check the quality of mortar products after production, or to indicate the bond strength (under the given conditions) of a mortar product without requiring the product to be tested in combination with many different units. It is not intended to represent field conditions. It uses standard concrete masonry units. Mortars are batched by weight equivalents of volume proportions and are mixed to a prescribed flow. Prisms are constructed using a jig and are bag-cured. 1.1.2 The second method is the “Test Method for Field-Prepared Specimens.” Its purpose is to evaluate the bond strength (under the given conditions) of a particular unit-mortar combination, either for preconstruction evaluation of materials or for quality control purposes during construction. Mortars are batched conventionally, and the flow is not prescribed. Prisms are constructed conventionally (no jig) and are bag-cured. 1.1.3 The third method is the “Test Method for Prisms Removed from Existing Masonry.” Its purpose is to evaluate the bond strength of unit-mortar combinations of prisms cut from existing walls. 1.1.4 The three methods are not consistent, nor are they intended to be. They are intended to be used for three different purposes. To make this clear, the three methods are presented separately. 1.1.5 Appendix X1 suggests two possible criteria for assessing the bond strength values obtained using these test methods. These possible evaluation criteria are given for illustration only and are not mandatory. 1.2 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. 1.3 The values stated in inch-pound units are to be regarded as the 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. ====== Significance And Use ====== 5.1 This test method is intended for use in comparing the bond strengths (under the given conditions) of masonry mortars. 5.2 This test method could be used, for example, to check one aspect of the quality of mortar products after production, or to indicate the bond potential of a mortar product without requiring the product to be tested in combination with many different units. 5.3 This test method uses controlled conditions of fabrication and curing that are not intended to represent field conditions. 5.4 This test method uses standard concrete masonry units. Mortars are batched by weight equivalents of volume proportions and are mixed to a prescribed flow. Prisms are constructed using a jig and are bag-cured. 5.5 Flexural bond strength determined by this test method shall not be interpreted as the flexural bond strength of a wall (because standard units are not used for wall construction), nor shall it be interpreted as an indication of extent of bond for purposes of water permeability evaluation.