1.1 本规程涵盖了计算沥青混合料中骨料的沥青吸收百分比的公式，表示为沥青混合料中骨料烘干质量的百分比。该计算基于烘干沥青混合料成分和性能的测量值。 1.2 本规程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。 1.3 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====== 5.1 集料吸收的沥青量对在役沥青路面的耐久性贡献很小或没有贡献，除了可能在有水的情况下提供更大的抗剥落性。 5.2 沥青吸收率可以作为施工期间厂拌生产中可能发生变化的指标。 5.3 计算出的沥青吸收百分比可用于计算沥青混合料设计期间的空隙率百分比。

1.1 This practice covers equations for calculating percent asphalt absorption by the aggregate in an asphalt mixture, expressed as percent of the oven-dry mass of the aggregate in the asphalt mixture. This calculation is based on measured values for components and properties of an oven-dry asphalt mixture. 1.2 This practice 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. 1.3 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 ====== 5.1 The amount of asphalt absorbed by the aggregate contributes little or nothing to the durability of an asphalt pavement in service other than possibly providing greater resistance to stripping in the presence of water. 5.2 Percent asphalt absorption can be an indicator of changes that may occur in plant mix production during construction. 5.3 The calculated percent asphalt absorption can be used for calculating percent air voids during asphalt mixture design.