Fiber-reinforced polymer (FRP) composites, when designed, fabricated, and installed, provide a sustainable and durable reinforcement system for concrete. This document presents guidance for assessing the durability performance of internal and external FRP composite reinforcement using accelerated conditioning protocols (ACPs) in combination with standard test methods for mechanical properties. The objective of ACPs is to enable manufacturers to characterize the durability of their FRP composite products and encourage researchers and testing laboratories to adopt common test protocols to build a meaningful database of durability testing of FRP materials. Results of the tests conducted using the recommended ACPs are not intended to be used in the design of FRP composites as concrete reinforcement. In the future, however, when the relationship between field performance and ACPs is better understood, ACPs may be refined to allow use in quality control and design.
Keywords: accelerated conditioning; bond; durability; externally bonded; fiber-reinforced polymer composites; modulus of elasticity.
Table of Contents
CHAPTER 1—INTRODUCTION AND SCOPE
CHAPTER 2—NOTATION AND DEFINITIONS
CHAPTER 3—DURABILITY OF FIBER-REINFORCED POLYMER COMPOSITES
CHAPTER 4—ACCELERATED CONDITIONING
4.2—Accelerated conditioning protocols
CHAPTER 5—FIBER-REINFORCED POLYMER REINFORCING BAR TESTS
5.1—Sustained bending stress test
CHAPTER 6—EXTERNALLY BONDED FIBER-REINFORCED POLYMER TESTS
6.1—Specimen fabrication and preparation
6.2—Beam bond test
6.3—Pull-off bond test
6.4—Tensile test of fiber-reinforced polymer
CHAPTER 7—FUTURE WORK AND RECOMMENDATIONS
Printed / Hard Copy Products: The full and complete returned product will be accepted if returned within 60 days of receipt and in salable condition. A 20% service charge applies. Return shipping fees are the customer’s responsibility.
Electronic /Downloaded Products & Online Learning Courses: These items are not eligible for return.
Exchanges: Contact ACI’s Customer Services Department for options (+1.248.848.3800 – ACICustomerService@concrete.org).