ACI-349 Approval for KB-TZ2 Expansion Anchor

Applicability of the KB-TZ2 Anchor
4
August 2021
Testing Differences among ICC-ES AC193, ACI 355.2-01, and ACI 349-01
Requirements and Resolution of those Differences
Testing to be performed or witnessed by an accredited laboratory
ACI 355.2-01 in Section 12.1 states that,
“The testing and evaluation of anchors under ACI 355.2 shall be performed or witnessed by an independent testing and
evaluation agency listed by a recognized accreditation service conforming to the requirements of ISO 17025 and Guide
58. In addition to these standards, listing of the testing and evaluation agency shall be predicated on the documented
experience in the testing and evaluation of anchors according to ASTM E 488, including demonstrated competence to
perform the tests described in ACI 355.2.”
ACI 349-01 states in Section B3.3 that,
“Post-installed structural anchors shall be tested before use to verify that they are capable of sustaining their design
strength in cracked concrete under seismic loads, These verification tests shall be conducted by an independent
testing agency and shall be certified by a professional engineer with full description and details of the testing programs,
procedures, results, and conclusions.”
Test data obtained for the KB-TZ2 evaluation according to Annex 1, Section 5.3, of AC 193, was required to be performed in a
laboratory accredited under the requirements of ISO/IEC 17025. Further, a listing, by an accredited listing agency, of the testing and
evaluation laboratory was required to be based on the documented experience in the testing and evaluation of anchors according
to ASTM E 488.
Resolution: Testing was performed by all laboratories listed in Table 1. Specialized Testing is accredited under ISO 17025 by the
International Accreditation Service (IAS) as listed on IAS TL-228. Element Material Technology is accredited under ISO 17025 by
American Association for Laboratory Accreditation (A2LA) as listed in their Scope of Accreditation Certificate Number 1479.01.
Table 1 – Testing laboratories used for KB-TZ2 testing
Laboratory Name Location Accreditation Agency Accreditation Number
Element Materials Technology Saint Paul, Minnesota
American Association for
Laboratory Accreditation (A2LA)
1479.01
Specialized Testing Santa Fe Springs, California
International Accreditation
Service (IAS)
IAS TL-228
Testing under the direction of a licensed professional engineer
ACI 355.2-01 states in Section 12.2 that,
“The testing shall be witnessed and evaluated by a registered engineer employed or retained by the independent testing
and evaluation agency.”
Resolution: Testing performed at Element Materials Technology was overseen, test reports and the Evaluation report submittal
prepared by Luke Tavernit of Element Materials Technology. Luke Tavernit is a registered professional engineer of Minnesota where
testing occurred. Testing performed at Specialized Testing was overseen and the test reports prepared by Thomas Kolden of
Specialized Testing. Thomas Kolden is a registered professional engineer of California where testing occurred.