ICC-ES AC Interim Criteria for Inspection and Verification of Concrete and Reinforced and Unreinforced Masonry Strengthening Using Fiber-reinforced. Accordance with. ICC-ES AC ADVANTAGES. DESCRIPTION/SUGGESTED SPECIFICATIONS*. The % epoxy resin and hardener are completely mixed. As such, Hilti maintains ICC-ES evaluation reports for adhesive anchors in concrete according to AC and in masonry according to AC I hope I have.

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As of icc-s Januarythe following actions were taken: In ArticlesInSights Comments 0. Ready Mixed Concrete Association of Ontario.

In reality, screw anchors have been around since the early s. Goods and Services Identification Number.

Code of Federal Regulations. National Asphalt Pavement Association. In 12 ac38, we have codified anchorage design procedures and developed anchor qualification standards that have greatly raised the reliability bar for anchors used in practical design conditions. Erosion Control Technology Council. Although the design procedure for screw anchors has not been codified, they are gaining acceptance in building practice as a reliable fastening element Olsen, et.

Research testing of screw anchors has shown that failure can occur in tension via three modes: Pullout failures also occur for screw anchors only when they are deeply embedded.


AC308 – Post-installed Adhesive Anchors in Concrete Elements

Muncipal Engineers Association of Ontario. American Iron and Steel Institute. American Ivc-es of Safety Engineers. Qualification For post-installed mechanical anchors, anchors must be qualified to the criterion in the ACI British Board of Agrement. They are intended to carry direct tension, direct shear, or combinations of tension and shear loadings.

Infraguide of Best Practices. National Institute of Standards and Technology. Organisation for Economic Co-operation and Development.

STRUCTURE magazine | Post-Installed Anchors

International Concrete Repair Institute. The new structural building occ-es ACI will be re-organized based on member type. AC also outlines the qualification tests required for screw anchors. Adhesive anchors were incorporated into ACI under the premise that the existing design models would be minimally affected. Canadian Acts and Regulations. Transportation Association of Canada. International Organization for Standardization.

The Present State of the Industry Formal concrete anchorage design provisions first appeared in ACI as Appendix D, with applications limited to cast-in-place anchors and post-installed mechanical expansion anchors.

Screw Icc–es There are a wide variety of post-installed concrete anchors, and the newest post-installed anchor is the screw anchor.

Institute of Transportation Engineers.

Society for Protective Coatings. American Society of Civil Engineers. Undercutting of screw threads in concrete from Olsen, et. Certification Based partially on the Boston Big Dig tunnel accident, the adhesive anchor installer must be certified to install anchors in certain orientations and under certain load conditions. This includes the design provisions for bond strength and concrete breakout.



AC – ICC Evaluation Service, LLC (ICC-ES)

Insulating Cable Engineers Association. National Concrete Masonry Association. The next code cycle will contemplate further additions and layout reorganization. Pullout failures look very much like bond failures for adhesively bonded anchors.

American Water Works Association. The creation of the threads in the concrete gives the screw anchor some advantage in cracked concrete where a small-narrow crack intersecting the threads icc-ez only a minor reduction on tension capacity.

Leave a Comment Click here to cancel reply. International Slurry Surfacing Association. International Municipal Signal Association. Adhesive anchor design provisions for iicc-es were the only provisions supplemented, necessitating new checks for concrete bond stress.

In Figure 1, the undercutting of the threads in the concrete is illustrated. Corp of Engineers Specifications.