1.1 本试验方法描述了评估湿铺或车间制造（例如拉挤成型）纤维增强聚合物（FRP）复合材料系统搭接剪切粘结性能的装置和程序，该系统粘附在平坦的混凝土基底上。该试验确定了FRP系统在与使用直接单搭接剪切试验测试的混凝土棱柱完全脱粘之前可以承受的平台力。该平台力被报告为粘结能力，可能不同于最大施加力。然后使用平台力确定界面断裂能和粘性材料定律。 1.2 本试验方法不用于工作批准或产品鉴定目的，除非外部机构为此目的采用该试验方法。 1.3 本试验方法适用于粘合剂涂覆或湿铺FRP系统，适用于包含FRP复合材料的任何纤维方向或层方向组合的FRP系统，尽管试验条件仅考虑平行于棱柱纵轴方向的力。 1.4 单位- 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。 1.4.1 在文本中，英寸-磅单位显示在括号中。 1.5 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。 1.6 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 本试验方法适用于实验室环境。 5.2 该测试方法用于评估平台力 P pl FRP复合材料在与混凝土棱柱完全脱粘之前能够承受的压力。 5.3 平台力的评估旨在在一致的环境条件下进行，并在环境实验室或其他一致的环境条件下进行测试。 5.4 该测试可用于确定有效键长 l eff公司 如果以恒定的粘结宽度测试不同的粘结长度，则为FRP复合材料的。有效键长 l eff公司 定义为最小粘合长度 达到粘结能力所必需的 P pl 用于测试FRP的宽度。 5.5 该测试可用于确定粘结能力随粘结宽度的变化 b f 如果测试不同的粘合宽度，而粘合长度 恒定且大于有效键长 l eff公司 . 5.6 该测试用于获得施加的力与复合材料相对于基材的加载端（或整体）滑动的关系图。负载端滑是两个线性可变差动变压器（LVDT）读数的平均值，如中所述 7.6 . 获得的曲线图用于确定系统的键特性。 5.7 该试验方法也可作为均匀制备和测试标准试样的方法，该标准试样适用于环境调节，随后用于评估FRP- 与混凝土系统性能结合，并评估和报告结果。该试验方法在不同环境调节方案下的相同试样上进行的结果比较可用于评估环境暴露对FRP系统粘结性能的影响。

1.1 This test method describes the apparatus and procedure to evaluate the lap shear bond properties of wet lay-up or shop-fabricated (for example, pultruded) fiber-reinforced polymer (FRP) composite systems adhesively applied to a flat concrete substrate. The test determines the plateau force that an FRP system can bear before complete debonding from a concrete prism tested using a direct single-lap shear test. This plateau force is reported as bond capacity and may be different from the maximum applied force. The plateau force is then used to determine the interfacial fracture energy and the cohesive material law. 1.2 This test method is not intended for job approval or for product qualification purposes unless an external agency adopts the test method for those purposes. 1.3 This test method is intended for use with adhesive-applied or wet lay-up FRP systems and is appropriate for use with FRP systems having any fiber orientation or combination of ply orientations comprising the FRP composite, although the test condition only considers forces in the direction parallel to the prism longitudinal axis. 1.4 Units— 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. 1.4.1 Within the text, the inch-pound units are shown in brackets. 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 ====== 5.1 This test method is intended for use in a laboratory setting. 5.2 This test method is used to evaluate the plateau force P pl that an FRP composite can bear before complete debonding from a concrete prism. 5.3 The evaluation of the plateau force is intended to be made under consistent environmental conditioning and the tests conducted in ambient laboratory or otherwise consistent environmental conditions. 5.4 This test can be used to determine the effective bond length l eff of the FRP composite if different bonded lengths are tested with constant bonded width. The effective bond length l eff is defined as the minimum bonded length necessary to achieve the bond capacity P pl for the width of FRP tested. 5.5 This test can be used to determine the variation of the bond capacity with the bonded width b f if different bonded widths are tested while the bonded length is constant and greater than the effective bond length l eff . 5.6 This test is used to obtain the plot of the applied force versus loaded end (or global) slip of the composite with respect to the substrate. The loaded end slip is the average of two linear variable differential transformer (LVDT) readings, as described in 7.6 . The plot obtained is used to determine the bond properties of the system. 5.7 This test method can also serve as a means for uniformly preparing and testing standard specimens suitable for being subject to environmental conditioning and subsequently used to evaluate FRP-bonded-to-concrete system performance, and evaluating and reporting the results. The comparison of results from this test method conducted on identical specimens subject to different environmental conditioning protocols can be used to evaluate the effects of environmental exposure on the bond performance of FRP systems.