ACI 549.4R 2020

$31.96

ACI 549.4R-20: Guide to Design and Construction of Externally Bonded Fabric-Reinforced and Steel-Reinforced Grout Systems for Repair and Strengthening of Concrete Structures

Published By	Publication Date	Number of Pages
ACI	2020	40

Guaranteed Safe Checkout

Category: ACI

If you have any questions, feel free to reach out to our online customer service team by clicking on the bottom right corner. We’re here to assist you 24/7.
Email:[email protected]

Description

Fabric-reinforced cementitious matrix (FRCM) and steel-reinforced grout (SRG) systems for rehabilitation and strengthening concrete structures is an alternative to traditional techniques such as fiber-reinforced polymers (FRPs), steel plate bonding, section enlargement, and external post-tensioning. An FRCM/SRG is a composite material consisting of one or more layers of inorganic matrix reinforced with dry fibers in the form of open mesh or fabric. The inorganic matrixes are typically cement-based, lime-based, or geopolymer. When adhered to concrete structural members, they form an FRCM/SRG system that acts as supplemental, externally bonded reinforcement. This guide addresses the history and use of FRCM and SRG systems rehabilitation and strengthening, their unique material properties, and recommendations on their design, construction, and inspection. Guidelines are based on experimental research, analytical work, and field applications. Keywords: cyclic loading; deflection; earthquake-resistant; fabric-reinforced cementitious matrix fatigue systems; fiber-reinforced polymer systems; lap splices; meshes; substrate repair; rehabilitation; surface preparation.

PDF Catalog

PDF Pages	PDF Title
3	TITLE PAGE
4	CHAPTER 1—INTRODUCTION AND SCOPE 1.1—Introduction 1.2—Scope CHAPTER 2—NOTATION AND DEFINITIONS 2.1—Notation
5	2.2—Definitions
6	CHAPTER 3—BACKGROUND 3.1—FRCM and SRG systems features 3.2—Background
14	3.3—Commercially available FRCM/SRG systems CHAPTER 4—FIELD APPLICATION EXAMPLES
15	4.1—Concrete repair applications
18	CHAPTER 5—FRCM AND SRG CONSTITUENT MATERIALS AND SYSTEM QUALIFICATIONS 5.1—Constituent materials
19	5.2—FRCM and SRG system qualifications 5.3—Physical and mechanical properties of FRCM/SRG
20	5.4—Durability CHAPTER 6—SHIPPING, STORAGE, AND HANDLING 6.1—Shipping 6.2—Storage 6.3—Handling
21	CHAPTER 7—INSTALLATION 7.1—Contractor qualifications 7.2—Environmental considerations 7.3—Equipment 7.4—Substrate repair and surface preparation
22	7.5—Mixing of mortar matrix 7.6—Application of FRCM/SRG systems 7.7—Alignment of FRCM/SRG reinforcement 7.8—Multiple fabrics and lap splices 7.9—Curing of mortar matrix 7.10—Temporary protection CHAPTER 8—INSPECTION, EVALUATION, AND ACCEPTANCE 8.1—Inspection
23	8.2—Evaluation and acceptance
24	CHAPTER 9—MAINTENANCE AND REPAIR 9.1—General 9.2—Inspection and assessment 9.3—Repair of strengthening system 9.4—Repair of surface coating CHAPTER 10—GENERAL DESIGN CONSIDERATIONS FOR REINFORCED CONCRETE STRENGTHENED WITH FRCM/SRG 10.1—Design philosophy 10.2—Strengthening limits 10.3—Selection of FRCM/SRG system 10.4—Design properties CHAPTER 11—FRCM/SRG REINFORCEMENT DETAILS
25	11.1—Bond and delamination CHAPTER 12—STRENGTHENING OF REINFORCED CONCRETE MEMBERS WITH FRCM/SRG 12.1—FRCM/SRG flexural strengthening
26	12.2—Shear strengthening
27	12.3—Strengthening for axial force
29	12.4—Design axial strength 12.5—Engineering requirements 12.6—Drawings and specifications 12.7—Submittals CHAPTER 13—REFERENCES
30	Authored documents
36	APPENDIX A—CONSTITUENT MATERIALS PROPERTIES OF COMMERCIALLY AVAILABLE FRCM SYSTEMS
38	APPENDIX B—DESIGN LIMITATIONS

Additional information

Standard Title	ACI 549.4R-20: Guide to Design and Construction of Externally Bonded Fabric-Reinforced and Steel-Reinforced Grout Systems for Repair and Strengthening of Concrete Structures
Published Code	ACI
Publication Date	2020
Pages Count	40

Preview PDF


PDF Format	Searchable	Printable	Preview Now

ACI 549.4R 2020

PDF Catalog

Related products