1.1 本试验方法介绍了用于确定经过剪切试验的预制沥青土工膜（PBGM）粘结接缝质量的程序。它描述了用于确定PBGM接缝完整性的破坏性质量控制测试。 1.2 本测试程序仅适用于PBGM。 1.3 用于构造PBGM接缝的热场接缝技术包括以下类型。 1.3.1 手电筒打开- 该技术通过在两个PBGM表面之间使用丙烷火炬燃烧，熔化两个PBGM表面以缝合。在顶部或底部，或两个PBGM上施加压力，迫使两个表面一起形成连续粘结。 1.3.2 热空气- 该技术在两个PBGM表面之间引入高温空气或气体，以促进熔化。在顶部或底部，或两个PBGM上施加压力，迫使两个表面一起形成连续粘结。 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。 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====== 4.1 使用PBGM作为屏障材料来限制土壤中液体从一个位置迁移到另一个位置，这就需要一种标准的测试方法来评估PBGM接缝的质量。在PBGMs的情况下，很明显，在某些条件下，接缝可以在现场表现出分离。虽然这是一种用于质量保证和质量控制目的的指数型测试方法，但它也旨在为质量保证工程师提供足够的焊缝剪切数据，以评估焊缝质量。记录和报告数据将使质量保证工程师能够采取必要措施，确保在设施施工期间修复强度不可接受的接缝，从而最大限度地减少在役接缝分离的可能性。

1.1 This test method presents the procedures used for determining the quality of prefabricated bituminous geomembrane (PBGM) bonded seams subjected to a shear test. It describes a destructive quality control test used to determine the integrity of PBGM seams. 1.2 This test procedure is intended for PBGMs only. 1.3 The type of thermal field seaming technique used to construct PBGM seams include the following. 1.3.1 Torch-On— This technique melts two PBGM surfaces to be seamed by running a flame from a propane torch between them. Pressure is applied on the top or bottom, or both PBGMs, forcing together both surfaces to form a continuous bond. 1.3.2 Hot Air— This technique introduces high-temperature air or gas between two PBGM surfaces to facilitate melting. Pressure is applied on the top or bottom, or both PBGMs, forcing together both surfaces to form a continuous bond. 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 ====== 4.1 The use of PBGM as barrier materials to restrict liquid migration from one location to another in soils has created a need for a standard test method to evaluate the quality of PBGM seams. In the case of PBGMs, it has become evident that seams can exhibit separation in the field under certain conditions. Although this is an index-type test method used for quality assurance and quality control purposes, it is also intended to provide the quality assurance engineer with sufficient seam shear data to evaluate seam quality. Recording and reporting data will allow the quality assurance engineer to take measures necessary to ensure the repair of seams with unacceptable strength during facility construction, and therefore, minimize the potential for seam separation in service.