ICC-ES AC490

Full Name

ICC-ES AC490 – Acceptance Criteria for Concrete and Reinforced and Unreinforced Masonry Strengthening Using Externally Bonded Steel-reinforced Polymer (SRP) Composite Systems

Scope

ICC-ES AC490 outlines the acceptance criteria for evaluating the strengthening of existing concrete, reinforced masonry, and unreinforced masonry structures using externally bonded steel-reinforced polymer (SRP) composite systems. These systems are applied to the exterior of the structure to enhance its load-carrying capacity and improve its structural performance. The scope of AC490 includes:
  • Materials: it specifies the requirements for the materials used in SRP systems, such as the steel reinforcement, polymer matrix, and bonding agents.
  • Design: it outlines the design criteria for strengthening systems, considering factors like the type of structure, load conditions, and desired performance enhancements.
  • Testing: it details the specific tests required to evaluate the performance of SRP systems under various loading conditions, including tensile, shear, and flexural tests.
  • Evaluation: it provides a framework for evaluating the structural adequacy and safety of masonry and concrete strengthening systems using SRP composites.
By adhering to ICC-ES AC490, manufacturers can ensure that their strengthening systems meet the necessary performance and safety standards. It also assists engineers, architects, and contractors in selecting and implementing appropriate strengthening solutions for existing structures.

Resources

Keywords

steel-reinforced polymer (SRP); concrete; reinforced masonry; unreinforced masonry; strengthening; acceptance criteria; evaluation; composite systems; load-carrying capacity; structural performance; bond strength; tensile; shear; flexural; durability; environmental exposure; fire performance
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