Title:
Overhead Installation of Injection-Type Adhesive Anchors
Author(s):
John Silva
Publication:
Concrete International
Volume:
38
Issue:
7
Appears on pages(s):
40-49
Keywords:
diameter, voids, temperature, insertion
DOI:
10.14359/51689119
Date:
7/1/2016
Abstract:
The ACI/CRSI adhesive anchor installer certification program recognizes two methods for installing injection-type adhesive anchors: the end-cap method and the piston plug method. The article summarizes recent laboratory study on the performance of these two methods in a variety of installation conditions using two adhesives that have been assessed under ACI 355.4-11. Based on the results, the author recommends discontinuation of ACI certification on the end-cap method.
Related References:
1. ACI Committee 318, “Building Code Requirements for Structural Concrete (ACI 318-14) and Commentary (ACI 318R-14),” American Concrete Institute, Farmington Hills, MI, 2014, 519 pp.
2. ACI Committee 355, “Qualification of Post-Installed Adhesive Anchors in Concrete and Commentary (ACI 355.4-11),” American Concrete Institute, Farmington Hills, MI, 2011, 55 pp.
3. “Ceiling Collapse in the Interstate 90 Connector Tunnel Boston, Massachusetts July 10, 2006,” NTSB/HAR-07/02, PB007-916203, National Transportation Safety Board, Washington, DC, 2007, 120 pp., www.ntsb.gov/investigations/AccidentReports/Reports/HAR0702.pdf.
4. “Tunnel’s Adhesive Had Unknown Track Record,” The Daily Yomiuri, Feb. 5, 2013.
5. ACI Committee 318, “Building Code Requirements for Structural Concrete (ACI 318-11) and Commentary,” American Concrete Institute, Farmington Hills, MI, 2011, 503 pp.
6. ACI/CRSI, “American Concrete Institute and Concrete Reinforcing Steel Institute Certification Policies for Adhesive Anchor Installer,” American Concrete Institute, Farmington Hills, MI, May 22, 2015 revision, 12 pp.
7. Ocel, J.M.; Hartmann, J.; and Fuchs, P., “I-90 Seaport Portal Tunnel Partial Ceiling Collapse Investigation: Sustained Load Behavior of Powers Fasteners Power-Fast+ Adhesive Anchors,” Federal Highway Administration, Turner-Fairbank Research Center Report, 2007, 94 pp.
8. ICC-ES AC308, “Acceptance Criteria for Post-Installed Adhesive Anchors in Concrete Elements,” ICC Evaluation Service, LLC, Brea, CA, 2015, 67 pp.