1.1 拟定试验方法的目的是确定固化/水合GCCM材料的抗拉强度，包括报告所提供的GCCM的初始抗拉强度（水泥层中的第一条裂缝）和最终抗拉强度，以及在移除土工合成材料顶层的风化状态下。 1.2 作为一种性能测试，这种方法将相对较少使用，并用于测试大量材料。本测试不适用于GCCM的常规质量控制测试。 1.3 以国际单位制表示的数值应视为标准。括号中有以英寸-磅为单位的值以供参考。 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。 1.5 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 此测试方法适用于在固化状态下测试GCCM。这确定了初始和最终断裂载荷，以确定GCCM的初始和最终抗拉强度。它与恒速拉伸型拉伸试验机配套使用。 4.2 GCCM是复合材料，固化的胶结材料通常具有比土工合成材料层更低的抗拉强度。当测试固化GCCM的抗拉强度时，通常会在胶结材料中形成多个裂缝，在达到GCCM的极限抗拉强度之前将载荷传递到增强纤维（或连接元件）。在某些应用中，工程师需要知道GCCM的初始抗拉强度，即胶结材料首次断裂和材料刚度降低的时候，而不仅仅是最终抗拉强度（极限强度），它主要由土工合成层控制。 4.3 在使用中，GCCM中的土工合成材料顶层特别容易受到紫外线照射和磨损的降解，尤其是在侵蚀控制应用中，例如在水流中具有高沉积水平的渠道衬砌中。重要的是，报告的数值应考虑环境退化的影响，因为环境退化对在役性能有重大影响。因此，当去除顶层时，也有必要测试GCCM的初始和最终抗拉强度，以提供长期GCCM抗拉性能的指示。

1.1 The purpose of the proposed test method is to determine the tensile strength of cured/hydrated GCCM materials to include reporting the initial tensile strength (first crack in the cementitious layer) and final tensile strength for GCCMs as supplied and in a weathered state with the geosynthetic top layer(s) removed. 1.2 As a performance test, this method will be used relatively infrequently and to test large lots of material. This test is not intended for routine quality control testing of GCCMs. 1.3 The values in SI units are to be regarded as the standard. Values in inch-pound units are in parentheses for information. 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 This test method is applicable for testing GCCMs in the cured state. This determines the initial and final breaking load to determine the initial and final tensile strength of the GCCM. It is used with a constant rate of extension type tensile testing machine. 4.2 GCCMs are composites, and the cured cementitious material typically has a lower tensile strength to the geosynthetic layer(s). When testing the tensile strength of a cured GCCM, multiple cracks will typically form in the cementitious material, transferring loads to the reinforcing fibers (or linking elements) before the ultimate tensile strength of the GCCM is reached. In certain applications, engineers need to know the initial tensile strength of the GCCM, which is when the cementitious material first breaks and the material’s rigidity is reduced, not just the final tensile strength (ultimate strength), which is governed primarily by the geosynthetic layer(s). 4.3 In service, the top layer of geosynthetic in a GCCM is particularly exposed to degradation from UV exposure and abrasion, especially in erosion control applications such as for channel lining with high levels of sedimentation in water flow. It is important that reported values take account of the effects of environmental degradation where this has a significant effect on in-service performance. It is therefore also necessary to test the initial and final tensile strength of the GCCM when the top layer has been removed to provide an indication of long-term GCCM tensile performance.