1.1 本规范涵盖波特兰水泥混凝土或沥青路面接缝用冷涂和热涂接缝密封剂的衬垫材料。 1.2 本规范规定了杆状或条状密封剂衬垫材料的基本要求，该材料能够承受热密封剂或冷密封剂的温度，且不会过度变形。 1.3 密封剂衬垫材料用于以下一个或多个目的: 1.3.1 限制应用于接缝的密封剂的数量和深度， 1.3.2 作为屏障界面，防止背面粘附（粘结破坏），以及 1.3.3 提供一种帮助密封剂形成形状因子的形状。 1.4 以英寸-磅为单位的数值应视为标准值。括号中的值仅供参考。 1.5 以下安全隐患警告仅适用于本规范中描述的测试方法。 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。

1.1 This specification covers backer material for cold- and hot-applied joint sealant for use in portland cement concrete or asphalt pavement joints. 1.2 This specification establishes basic requirements for sealant backer material, either in rod or strip form, that can withstand the temperature of hot- or cold-applied sealants without excessive deformation. 1.3 Sealant backer material serves one or more of the following purposes: 1.3.1 Limits the amount and depth of sealant applied to a joint, 1.3.2 Acts as a barrier interface to prevent backside adhesion (bond breaker), and 1.3.3 Provides a form to assist the sealant in developing a shape factor. 1.4 The values stated in inch-pound units are to be regarded as the standard. The values in parentheses are for information purposes only. 1.5 The following safety hazards caveat pertains only to the test methods described in this specification. 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.