这是一份参考规范，建筑师/工程师可通过在项目规范中引用该规范，将其应用于涉及结构混凝土的任何建筑维修和修复项目。提供强制性要求和可选要求清单，以协助建筑师/工程师根据要求或需要，通过指定或指定单个项目要求，补充本规范的规定。第一部分介绍了所有维修工作的一般施工要求。第二节介绍了待修复结构或构件的支撑和支撑，并说明了结构卸载和重新加载时修复工作的顺序。第三部分介绍了混凝土移除和混凝土基底的修复准备，并定义了常用的设备和方法。接下来的五节将介绍混凝土的材料和配比； 专有胶凝和聚合物修复材料；加固；修补材料的生产、铺设、修整和养护；模板性能标准和施工；关节的治疗；嵌入式项目；修复表面缺陷；实体模型；以及成形和未成形表面的修整。包括关于维修材料的测试、评估和验收以及维修工作验收的规定。第9节和第10节通过引用将另外两个规范ACI 503.7和ACI 506.2纳入本ACI标准，分别涵盖环氧树脂注入和喷射混凝土的裂缝修补。

This is a Reference Specification that the Architect/Engineer can apply to any construction repair and rehabilitation project involving structural concrete by citing it in the Project Specifications. Mandatory requirements and Optional requirements checklists are provided to assist the Architect/Engineer in supplementing the provisions of this Specification, as required or needed, by designating or specifying individual project requirements.The first section covers general construction requirements for all repair Work. The second section covers shoring and bracing of the structure or member to be repaired, and addresses sequencing of repair Work as the structure is unloaded and reloaded. The third section covers concrete removal and preparation of the concrete substrate for repair, and defines common equipment and methods.The next five sections cover materials and proportioning of concrete; proprietary cementitious and polymer repair materials; reinforcement; production, placing, finishing, and curing of repair materials; formwork performance criteria and construction; treatment of joints; embedded items; repair of surface defects; mockups; and finishing of formed and unformed surfaces. Provisions governing testing, evaluation, and acceptance of repair materials as well as acceptance of the repair Work are included. Sections 9 and 10 incorporate by reference two other specifications—ACI 503.7 and ACI 506.2—into this ACI Standard to cover crack repair by epoxy injection and shotcrete, respectively.