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Standard Practice for Non-destructive Testing (NDT) for Determining the Integrity of Seams Used in Joining Flexible Polymeric Sheet Geomembranes 用于确定连接柔性聚合物薄膜土工膜的接缝完整性的无损检测(NDT)标准实践
发布日期: 2008-04-01
1.1本规程旨在总结无损质量控制测试方法,以确定在岩土工程应用中连接柔性板材时使用的接缝完整性。本规程概述了可用于确定粘结接缝质量的测试程序。本规程中概述的任何一种或多种测试方法均可纳入项目规范,以进行质量控制。这些试验方法适用于制造的scrim增强或非增强柔性聚合物膜衬里。本规程不适用于破坏性试验。有关破坏性试验方法,请参阅其他ASTM标准和实践。 1.2本规程涵盖的接缝类型包括: 热粘合接缝、热风、热楔(或刀)、挤压、溶剂粘合接缝、主体溶剂粘合接缝、粘合剂粘合或胶结接缝、胶带接缝、防水缝合接缝。 1.3以国际单位制表示的数值应视为标准。括号中给出的值仅供参考。本标准不包括其他计量单位。 1.4 本标准可能涉及危险材料、操作和设备。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和健康实践,并确定监管限制的适用性。 ====意义和用途====== 使用土工膜作为屏障材料来限制土壤和岩石中液体从一个位置迁移到另一个位置,以及在连接这些土工膜板时使用的大量接缝方法和类型,使得需要进行标准测试,通过这些测试可以比较各种接缝,并可以无损评估接缝系统的质量。这种做法旨在满足这种需要。 土工膜片材应由适当的聚合物和复合成分制成,以形成满足产品最终用途所有规定要求的塑料或弹性体片材。根据板材制造商的建议和说明,板材(增强或非增强)应能够通过1.2中所述的方法之一粘接到自身。
1.1 This practice is intended for use as a summary of nondestructive quality control test methods for determining the integrity of seams used in the joining of flexible sheet materials in a geotechnical application. This practice outlines the test procedures available for determining the quality of bonded seams. Any one or combination of the test methods outlined in this practice can be incorporated into a project specification for quality control. These test methods are applicable to manufactured flexible polymeric membrane linings that are scrim reinforced or nonreinforced. This practice is not applicable to destructive testing. For destructive test methods look at other ASTM Standards and Practices. 1.2 The types of seams covered by this practice include the following: Thermally Bonded Seams, Hot Air, Hot Wedge (or Knife), Extrusion, Solvent Bonded Seams, Bodied Solvent Bonded Seams, Adhesive Bonded or Cemented Seams, Taped Seams, Waterproofed Sewn Seams. 1.3 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only. No other units of measurement are included in this standard. 1.4 This standard may involve hazardous materials, operations, and equipment. 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 and health practices and determine the applicability of regulatory limitations prior to use. ====== Significance And Use ====== The use of geomembranes as barrier materials to restrict liquid migration from one location to another in soil and rock, and the large number of seam methods and types used in joining these geomembrane sheets, has created a need for standard tests by which the various seams can be compared and the quality of the seam systems can be non-destructively evaluated. This practice is intended to meet such a need. The geomembrane sheet material shall be formulated from the appropriate polymers and compounding ingredients to form a plastic or elastomer sheet material that meets all specified requirements for the end use of the product. The sheet material (reinforced or nonreinforced) shall be capable of being bonded to itself by one of the methods described in 1.2 in accordance with the sheet manufacturer's recommendations and instructions.
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归口单位: D35.10
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