1.1 本规程涵盖了从沥青路面或混凝土中提取的再生骨料基层（RAB）材料再生的选定方面。RAB可称为再生沥青路面（RAP）或再生混凝土骨料（RCA）。 1.2 本规程涉及材料质量、材料质量控制测试以及操作员和设施资质。 1.3 单位- 以国际单位制表示的数值应视为标准。本标准不包括其他计量单位。 注1: 筛孔尺寸由规范中的标准名称确定 E11 . 括号中给出的替代名称仅供参考，并不代表不同的标准筛孔尺寸。 1.4 本实践提供了一组用于执行一个或多个特定操作的说明。本文件不能取代教育或经验，应与专业判断一起使用。 并非本惯例的所有方面都适用于所有情况。本ASTM标准不代表或取代必须根据其判断给定专业服务的充分性的谨慎标准，也不应在不考虑项目的许多独特方面的情况下应用本文件。标题中的“标准”一词仅表示该文件已通过ASTM共识程序获得批准。 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 在运输应用中，使用再生骨料基层已变得很常见。 4.2 RAB可以单独使用，也可以与其他骨料材料（未经处理和/或回收）混合使用，以生产未结合的基层材料。 4.3 RAB的质量对于路面基层应用的成功再利用至关重要。本实践旨在提供一个通用的基线框架，以确保RAB生产的材料、操作员和设施质量。

1.1 This practice covers selected aspects for reclamation of recycled aggregate base (RAB) material derived from asphalt pavement or concrete. RAB may be called recycled asphalt pavement (RAP) or recycled concrete aggregate (RCA). 1.2 This practice is provided related to material quality, material quality control testing, and also operator and facility qualifications. 1.3 Units— The values stated in SI units are to be regarded as the standard. No other units of measurement are included in this standard. Note 1: Sieve size is identified by its standard designation in Specification E11 . The alternative designation given in parentheses is for information only and does not represent a different standard sieve size. 1.4 This practice offers a set of instructions for performing one or more specific operations. This document cannot replace education or experience and should be used in conjunction with professional judgment. Not all aspects of this practice may be applicable in all circumstances. This ASTM standard is not intended to represent or replace the standard of care by which the adequacy of a given professional service must be judged, nor should this document be applied without consideration of a project’s many unique aspects. The word “Standard” in the title means only that the document has been approved through the ASTM consensus process. 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 Use of recycled aggregate base has become commonplace in transportation applications. 4.2 RAB may be used alone or in mixtures with other aggregate materials (virgin and/or recycled) in the production of unbound base course materials. 4.3 Quality of RAB is critical for successful reuse in pavement base applications. This practice is intended to provide a common baseline framework for assuring material, operator, and facility quality for production of RAB.