1.1 本规程涵盖混凝土表面处理，以便在涂覆涂层之前对表面进行处理。 1.2 这种做法旨在改变混凝土的表面轮廓，并去除异物和薄弱的表面浮浆。 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）。本标准的使用者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。 有关具体的危险说明，请参阅第节 6. . 1.4 本国际标准是根据世界贸易组织技术性贸易壁垒委员会发布的《关于制定国际标准、指南和建议的原则的决定》中确立的国际公认的标准化原则制定的。 ====意义和用途====== 5.1 这种做法用于制备涂层混凝土，其中在连续或间歇浸泡、温度循环或机械负载等使用条件下需要最佳粘结。

1.1 This practice covers surface preparation of concrete to prepare the surface prior to the application of coatings. 1.2 This practice is intended to alter the surface profile of the concrete and to remove foreign materials and weak surface laitance. 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. For specific hazard statements, see Section 6 . 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. ====== Significance And Use ====== 5.1 This practice is used to prepare concrete for coatings where optimum bond is desired for service conditions such as continuous or intermittent immersion, temperature cycling, or mechanical loading.