1.1 本试验方法适用于实验室测定以下一项或多项: 1.1.1 修补或覆盖材料与特定混凝土基材的粘结强度。 1.1.2 修补或覆盖材料应用于混凝土基材后的抗拉强度。 1.1.3 在混凝土基材上应用粘合剂或其他粘结改性处理时粘结强度的变化。 1.2 以国际单位制或英寸-磅单位表示的数值应单独视为标准值。每个系统中规定的值不一定是精确的等价物；因此，为确保符合本标准，每个系统应独立使用，且两个系统的值不得组合。有些值只有国际单位制，因为在实践中没有使用英寸-磅当量。 1.2.1 如果从另一标准获得的所需结果未在本试验方法使用的相同单位系统中报告，则允许使用SI快速参考指南中的转换因子转换这些结果。 2. 1.3 本试验方法的文本是指提供解释材料的注释和脚注。这些注释和脚注（不包括表和图中的注释和脚注）不应视为本试验方法的要求。 1.4 本标准并非旨在解决与其使用相关的所有安全问题（如有）。本标准的用户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。( 警告- 新鲜的水硬性胶结混合物具有腐蚀性，长时间接触可能会导致皮肤和组织化学烧伤。） 3. 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《关于制定国际标准、指南和建议的原则的决定》中确立的国际公认标准化原则制定的。 ====意义和用途====== 5.1 当对修补或覆盖材料进行试验时，结果是与混凝土面板的粘结强度或覆盖层或混凝土面板的抗拉强度，以较弱者为准。 5.2 测得的强度由要求最小应力的破坏机制控制。因此，不可能事先知道将通过试验测量哪种强度。因此，必须为每个单独的测试结果报告故障模式，并且仅当出现相同的故障模式时，才对测试结果进行平均。或者，如果粘结在试验期间没有失败，可以推断粘结强度大于破坏应力。 5.3 该方法也可用于评估粘合剂的性能。 5.4 本试验方法旨在评估实验室中的粘结强度，并标准化允许在实验室之间比较结果的条件。 由于获得的结果仅适用于标准基板，因此无意确定现场应用的粘结强度。

1.1 This test method is suitable for laboratory use to determine one or more of the following: 1.1.1 The bond strength of a repair or an overlay material to a specific concrete substrate. 1.1.2 The tensile strength of a repair or overlay material after the material has been applied to the concrete substrate. 1.1.3 The change in bond strength when applying a bonding agent or other bond modifying treatment to the concrete substrate. 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 are not necessarily exact equivalents; therefore, to ensure conformance with the standard, each system shall be used independently of the other, and values from the two systems shall not be combined. Some values have only SI units because the inch-pound equivalents are not used in practice. 1.2.1 If required results obtained from another standard are not reported in the same system of units as used by this test method, it is permitted to convert those results using the conversion factors found in the SI Quick Reference Guide. 2 1.3 The text of this test method 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 this test method. 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. ( Warning— Fresh hydraulic cementitious mixtures are caustic and may cause chemical burns to skin and tissue upon prolonged exposure.) 3 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 When the test is performed on the repair or overlay material, the result is the bond strength to the concrete panel or the tensile strength of either the overlay or concrete panel, whichever is weaker. 5.2 The measured strength is controlled by the failure mechanism requiring the least stress. Thus, it is not possible to know beforehand which strength will be measured by the test. For this reason, the failure mode has to be reported for each individual test result, and tests results are averaged only if the same failure mode occurs. Alternatively, one can infer that the bond strength is greater than the failure stress if the bond does not fail during the test. 5.3 The method may also be used to evaluate the performance of bonding agents. 5.4 This test method is designed to evaluate bond strengths in the laboratory and to standardize conditions that permit comparison of results between laboratories. It is not intended to determine bond strength for field applications as results obtained are only applicable to the standard substrate.