1.1 本规范涵盖用于沥青水泥或沥青路面混合物的高钙、白云质和镁质熟石灰。 注1: 熟石灰（方解石、白云质或镁质）可改善沥青和骨料的结合，从而降低对水分损伤的敏感性，通过化学稳定沥青中的极性化合物来减少老化硬化，并增加沥青混合物的初始刚度。 注2: 未试图提出任何副产品石灰的要求。 1.2 以国际单位制表示的数值应视为标准值。本标准不包括其他计量单位 1.3 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。 1.4 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。

1.1 This specification covers high calcium, dolomitic and magnesian-hydrated lime for use in asphalt cement or bituminous paving mixtures. Note 1: Hydrated lime, either calcitic, dolomitic, or magnesian, improves bonding of bitumen and aggregates which reduces susceptibility to moisture damage, reduces age hardening by chemically stabilizing polar compounds found in asphalts, and increases initial stiffness of asphalt mixtures. Note 2: No attempt is made to present requirements for any by-product lime. 1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard 1.3 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. 1.4 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.