ACI MNL-3(20) PDF Download

The ACI MNL-3(20) standard is a comprehensive resource for professionals involved in the assessment, repair, and rehabilitation of concrete structures. The standard is the third edition of the ACI 562 Code, which provides minimum material and design requirements for structural concrete members.

The ACI 562 Code is organized in a dual-column format, with mandatory code provisions on the left and nonmandatory commentary on the right. It includes both prescriptive and performance requirements, allowing flexibility for design professionals to meet the code's requirements. The ACI 562 standard aims to unify and strengthen concrete assessment, repair, and rehabilitation projects while accommodating various strategies and materials used in the industry.

The standard serves as a guide for licensed design professionals but also provides insight and benefits for contractors, material manufacturers, building owners, and building officials. It includes chapter guides, project examples, and an appendix on concrete repair specifications. The chapter guides explain the different provisions of the ACI 562 Code, while the project examples illustrate the process of carrying out concrete assessment, repair, rehabilitation, or strengthening projects. The appendix on specifications provides direction to contractors and defines the responsibilities and scope of repair and rehabilitation projects.

The third edition of the ACI 562 Code, which was published in 2019, includes updates to simplify the use of new materials, clarify requirements related to detailing of existing reinforcing steel, and update commentary on durability considerations. Additionally, three new repair examples are added to demonstrate the flexibility and applicability of the code to different repair and strengthening methods.