1.1 本规程包括制备压实沥青混合料样本的程序，将样本暴露在封闭室内的静水孔隙压力下，以及测试样本的指南，以了解水对沥青混合料抗拉强度的影响或其他性能的变化，如密度、模量等。 1.2 可使用本文件中引用的方法和测试程序测试根据本规程调节的试样，这些结果可提供本规程中水分调节对这些混合物水分敏感性影响的信息。 1.3 本标准的文本引用了提供解释材料的注释和脚注。这些注释和脚注（不包括表和图中的注释和脚注）不应视为本标准的要求。 1.4 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可能不是精确的等效值；因此，每个系统应相互独立使用。将两个系统的值合并可能会导致不符合标准。 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====== 4.1 本规程提供了循环荷载下的加速调节方法。该系统能够在高于正常温度的条件下运行，并在压实的沥青混合料中产生孔隙压力，以加速混合料在正常温度和条件下随时间的交通影响。本实践中的加速调节旨在模拟通过车辆轮胎在潮湿路面中产生的应力。该系统产生的脉冲形状近似于洛伦兹函数，半峰宽度约为1 在276 kPa[40 psi]下。 4.2 影响可能发生水分损害的因素包括骨料矿物学、混合物空隙、水、循环施加应力和温度升高。 本实践提供了一种能够产生以下三种因素的方法和设备:水、压力和高温。骨料矿物学和空隙率是混合物的特性。 4.3 通过该系统调节的样本可以使用各种不同的测试进行测试，包括测试方法 D6931 ，试验方法 D6927 ，通过试验方法获得的体积比重差 D6926 或 D6752/D6752M 调节前后，动态模量、流动数、AASHTO T 378和剥离骨料的目视检查。 注1: 本标准产生的结果质量取决于执行程序的人员的能力以及所用设备的能力、校准和维护。符合规范标准的机构 D3666 通常认为能够胜任和客观的测试、抽样、检查等。 本标准的用户应注意遵守规范 D3666 单独使用并不能完全确保可靠的结果。可靠的结果取决于许多因素；遵循规范建议 D3666 或者一些类似的验收准则提供了评估和控制其中一些因素的方法。

1.1 This practice includes procedures for preparing compacted asphalt mixture specimens, exposing the specimens to hydrostatic pore pressure inside an enclosed chamber, and guidance on testing the specimens for the effect of water on the tensile strength or change in other properties of the asphalt mixture, such as density, modulus, etc. 1.2 Specimens conditioned according to this practice can be tested using methods and test procedures referenced in this document, and those results may provide information as to the effect of the moisture conditioning of this practice on the moisture sensitivity of those mixtures. 1.3 The text of this standard references notes and footnotes which provide explanatory material. These notes and footnotes (excluding those in tables and figures) shall not be considered as requirements of the standard. 1.4 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in nonconformance with the standard. 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 ====== 4.1 This practice provides an accelerated conditioning method under cyclic loading. This system is capable of operating at higher than normal temperatures and creating pore pressure within a compacted asphalt mixture to achieve an acceleration of the effects that a mixture would experience over time from traffic at normal temperatures and conditions. The accelerated conditioning in this practice is intended to simulate the stresses induced in a wet pavement by a passing vehicle tire. The pulse shape produced by this system approximates a Lorentzian function with a half peak width of approximately 1 s at 276 kPa [40 psi]. 4.2 The factors that influence the potential for moisture damage to occur include aggregate mineralogy, mixture air voids, water, cyclic applied stress, and elevated temperature. This practice provides a method and apparatus that is capable of producing three of these factors: water, stress, and high temperature. Aggregate mineralogy and air voids are mixture properties. 4.3 Specimens conditioned by this system can be tested using a variety of different tests, including Test Method D6931 , Test Method D6927 , bulk specific gravity difference obtained by Test Method D6926 or D6752/D6752M for before and after conditioning, dynamic modulus, flow number, AASHTO T 378, and visual inspection for stripped aggregates. Note 1: The quality of the results produced by this standard are dependent on the competence of the personnel performing the procedure and the capability, calibration, and maintenance of the equipment used. Agencies that meet the criteria of Specification D3666 are generally considered capable of competent and objective testing, sampling, inspection, etc. Users of this standard are cautioned that compliance with Specification D3666 alone does not completely ensure reliable results. Reliable results depend on many factors; following the suggestions of Specification D3666 or some similar acceptance guideline provides a means of evaluating and controlling some of those factors.