ICC-ES AC218

Full Name

ICC-ES AC218 – Acceptance Criteria for Cement-based Matrix Fabric Composite Systems for Reinforced and Unreinforced Masonry

Scope

ICC-ES AC218, although withdrawn and inactive, previously established the acceptance criteria for evaluating cement-based matrix fabric composite systems used to strengthen reinforced and unreinforced masonry structures.

The scope of AC218 included:

  • Material properties: defining the requirements for the cement-based matrix, fabric reinforcement, and their combination, ensuring compatibility and performance.
  • Performance evaluation: outlining the test methods for assessing the composite system’s flexural, shear, and axial capacities under various loading conditions.
  • Durability: evaluating the system’s resistance to environmental factors such as freeze-thaw cycles, moisture, and temperature changes.
  • Fire resistance: determining the system’s behavior under fire conditions to ensure safety in building applications.
  • Design guidelines: providing recommendations for the structural design of masonry strengthening using these composite systems.

Although AC218 is no longer active, it served as an important foundation for developing subsequent acceptance criteria for similar systems. For instance, ICC-ES AC434 (Acceptance Criteria for Masonry and Concrete Strengthening Using Fabric-Reinforced Cementitious Matrix (FRCM) and Steel Reinforced Grout (SRG) Composite Systems) builds upon the concepts and methodologies presented in AC218.

Please note that due to its inactive status, AC218 should not be used as the sole basis for evaluating or designing masonry strengthening systems. It is recommended to consult the latest applicable standards and guidelines.

Resources

Keywords

acceptance criteria; cement-based matrix; fabric reinforcement; composite system; masonry; reinforced masonry; unreinforced masonry; strengthening; evaluation; material properties; flexural capacity; shear capacity; axial capacity; durability; fire resistance; testing; design guidelines; compatibility; loading conditions

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