1.1 本测试方法描述了破坏性质量控制和/或质量保证测试，以确定使用胶带接缝方法生产的接缝的完整性。本试验方法介绍了用于确定经过剥离和剪切试验的胶带接缝质量的程序。这些试验程序适用于非加固和加固土工膜。 1.2 用于建造土工膜接缝的胶带接缝技术类型包括以下几种: 1.2.1 Inseam胶带- 这种技术要求薄膜重叠最小的距离。将顶片折回，并用粘合底漆对底片和顶片进行底漆处理。允许底漆闪掉。将胶带粘合剂涂在底片上，这样当胶带铺在胶带上时，至少有一部分胶带会从顶片下面伸出。允许顶片平放在胶带上，以45°至90°的角度拉动离型纸，使离型纸与底片表面保持平放。 然后用硅胶套滚筒对接缝区域进行滚压。 1.2.2 盖条胶带- 这种技术要求薄膜重叠最小的距离。接缝边缘两侧的区域已涂底漆。允许底漆闪掉。涂上覆盖条时，粘合剂面朝下，以顶部片材边缘为中心，同时在剥离纸沿着顶部片材边缘的中心移动时将其移除。然后用硅胶套辊对覆盖条进行轧制。 1.3 有关无损检测方法，请参见实践 天4437/天4437米 . 1.4 本试验方法适用于使用胶带作为接缝机制的接缝工艺。 1.5 根据现场特定合同计划、规范和承包商质量控制/承包商质量保证（CQC/CQA）文件，对接缝验收标准做出后续决定。 1.6 如果是材料- 具体测试方法，应以本测试方法为准。 1.7 危险品- 对于用于适当通风和保护的任何危险材料，请始终查阅适当的材料安全数据表。在这种实践中，在这些测试方法中使用烤箱可能会加速试样产生烟雾。 1.8 以英寸磅和国际单位制表示的数值应单独视为标准。括号中的值仅供参考。 1.9 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。 1.10 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 重要性- 随着越来越多地使用土工膜作为阻挡材料来限制液体从一个位置迁移到另一个位置，人们需要一种标准的测试方法来评估胶带法生产的土工膜接缝的质量。就土工膜而言，很明显，在某些条件下，土工膜接缝可以在现场表现出分离。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；它还旨在为质量工程师提供足够的接缝剥离和剪切数据来评估接缝质量。 4.2 使用- 记录和报告数据，如剥离试验期间发生的分离和剪切试验期间的伸长率，将使质量保证工程师能够采取必要措施，确保在施工期间修复劣质接缝，从而最大限度地减少使用期间接缝分离的可能性。 当然，由于不同的配方和产品类型，测量的附着力的可接受值会因产品而异。然而，一旦产品确定，生产商和消费者可以确定并同意分离力的最小值，并且双方都可以监控安装，以确保维持商定的最小值。

1.1 This test method describes destructive quality control and/or quality assurance tests to determine the integrity of seams produced using taped seaming methods. This test method presents the procedures used for determining the quality of taped seams subjected to both peel and shear tests. These test procedures are intended for nonreinforced and reinforced geomembranes. 1.2 The types of tape seaming techniques used to construct geomembrane seams include the following: 1.2.1 Inseam Tape— This technique requires the membrane to be overlapped a minimum distance. The top sheet is folded back and both the bottom sheet and the top sheet are primed with an adhesive primer. The primer is allowed to flash off. The tape adhesive is applied to the bottom sheet so that a minimum of the tape will extend out from under the top sheet when laid over the tape. The top sheet is allowed to lay flat over the tape and the release paper is removed by pulling it at a 45° to 90° angle, keeping the release paper flat to the surface of the bottom sheet. The seam area is then rolled with a silicone-sleeved roller. 1.2.2 Cover Strip Tape— This technique requires the membrane to be overlapped a minimum distance. An area either side of the seam edge is primed. The primer is allowed to flash off. The cover strip is applied with the adhesive side down, centered over the top sheet edge while removing the release paper as it proceeds along centered over the edge of the top sheet. The cover strip is then rolled with a silicone-sleeved roller. 1.3 For nondestructive test methods, see Practice D4437/D4437M . 1.4 This test method is applicable for seaming processes that use tape adhesive as a seaming mechanism. 1.5 Subsequent decisions as to seam acceptance criteria are made according to the site-specific contract plans, specifications, and contractor quality control/contractor quality assurance (CQC/CQA) documents. 1.6 In case of a material-specific test method, this test method shall take precedence. 1.7 Hazardous Materials— Always consult the proper material safety data sheets for any hazardous material used for the proper ventilation and protection. The use of the oven in these test methods, in this practice, may accelerate fume production from the test specimen. 1.8 The values stated in both inch-pound and SI units are to be regarded separately as the standard. Values in parentheses are for information only. 1.9 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. 1.10 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 Significance— With the increased use of geomembranes as a barrier material to restrict liquid migration from one location to another, a need has been created for a standard test method to evaluate the quality of geomembrane seams produced by tape methods. In the case of geomembranes, it has become evident that geomembrane seams can exhibit separation in the field under certain conditions. This is an index-type test method used for quality assurance and quality control purposes; it is also intended to provide the quality engineer with sufficient seam peel and shear data to evaluate seam quality. 4.2 Use— Recording and reporting data, such as separation that occurs during the peel test and elongation during the shear test, will allow the quality assurance engineer to take measures necessary to ensure the repair of inferior seams during construction, and therefore, minimize the potential for seam separation while in service. The acceptable value of adhesion measured will, of course, vary from product to product as a result of different formulations and types of products. However, once a product is established, minimum values of separation force can be determined and agreed to by producer and consumer, and both can monitor the installation to ensure maintenance of the agreed-upon minimum value.