Items for the October 2020 Evaluation Committee Meeting

Tuesday, October 6, 2020

1. AC58 – Proposed revisions to the Acceptance Criteria for Adhesive Anchors in Cracked and Uncracked Masonry Elements.  Proposed revisions include a correction for continuous ledge conditions for anchors installed in fully grouted CMU walls with hollow head joint applications and other clarifications on adhesive anchor test requirements. Click here.

Responses received – Click here
Rebuttal comments – No rebuttal received
Presentations – Forthcoming
Staff Memos – Forthcoming

2. AC133 – Proposed revisions to the Acceptance Criteria for Mechanical Splice Systems for Steel Reinforcing Bars.  Proposed revisions include updating the criteria to the anticipated requirements of the 2021 IBC, adding reference to ACI 318-19, adding a residual slip limit criteria for Type 2 splices, adding a new definition for preload slack with associated conditions of use, adding an optional Type 2HS splice with higher strain requirements, and adding a condition of use for corrosion resistance of mechanical splice systems. Click here.

Responses received – Click here
Rebuttal comments – No rebuttal received
Presentations – Forthcoming
Staff Memos – Forthcoming

3. AC520 – Proposed New Acceptance Criteria for CO2Concrete-Based Concrete Masonry Units.  This proposed new criteria includes evaluation requirements for CO2Concrete-Based Concrete Masonry Units (CMU) that are an alternative to load bearing and non-load bearing CMU complying with ASTM C90 and ASTM C129 under the 2018 IBC and IRC.  The criteria addresses hollow and solid, normal weight, medium weight and lightweight CMU blocks that are made from a proprietary CO2Concrete mixture formulation and material components. Click here.

Responses received – No responses received
Rebuttal comments – No rebuttal received
Presentations – Forthcoming
Staff Memos – Forthcoming

4. AC521 – Proposed New Acceptance Criteria for Fiber-Reinforced Polymer (FRP) Bars and Meshes for Internal Reinforcement of Non-Structural Concrete Members.  This proposed new criteria includes evaluation requirements for solid, circular section glass or basalt FRP bars and meshes that are used as secondary reinforcement for cracking, temperature and shrinkage control in plain concrete footings and plain concrete slabs supported directly on the ground. Click here.

Responses received – No responses received
Rebuttal comments – No rebuttal received
Presentations – Forthcoming
Staff Memos – Forthcoming

5. AC233 — Proposed Revisions to the Acceptance Criteria for Dowel-type Threaded Fasteners Used in Wood.   Proposed revisions include adding qualification requirements for use of dowel-type threaded fasteners in end grain withdrawal, lateral capacity of fasteners installed into the edge of CLT panels, establishing evaluation procedures for use of ETA data, including guidance on how to determine fastener strengths for use with LRFD, and adding a new Sub-Annex CB with requirements for determining required spacing of dowel-type threaded fasteners used to attached deck ledgers to rim boards. Click here.

Responses received – Click here
Rebuttal comments – No rebuttal received
Presentations – Forthcoming
Staff Memos – Forthcoming

6. AC519 — Proposed New Acceptance Criteria for Enclosed Booths for Installation Inside New and Existing Buildings.   A previous version of this proposed new criteria was presented at the June 2020 ICC-ES Evaluation Committee meeting and was recommended for Further Study by the ICC-ES Evaluation Committee. The proposed new criteria has been revised to include reference to ICC A117.1, removing exception language and revising requirements for enclosed booth door opening dimensions, slopes and ceiling heights. Click here.

Responses received – Click here
Rebuttal comments – Click here
Presentations – Forthcoming
Staff Memos – Forthcoming

7. AC516 – Proposed New Acceptance Criteria for Factory-Applied Fire-Retardant Penetrant for Wood Structural Panels and Sawn Lumber.  A previous version of this proposed new criteria was presented at the February 2020 ICC-ES Evaluation Committee meeting and was recommended for Further Study by the ICC-ES Evaluation Committee.  A revised draft was posted for public comments for discussion at the June 2020 hearing, however, due to comments received, the proposed new criteria was withdrawn from the June 2020 ICC-ES Evaluation Committee meeting agenda.  The proposed new criteria has been extensively revised to include a wetting and drying preconditioning protocol for wood with factory-applied fire-retardant penetrant prior to required surface-burning tests to address possible wetting during the construction process, requirements for effects of the penetrant on wood mechanical properties similar to AC66, requirements for evaluation of OSB panels with penetrant that are not addressed in AC66, and removal of specific product uses included in earlier version of the criteria. Click here.

Responses received – Click here
Rebuttal comments – Click here
Presentations – Forthcoming
Staff Memos – Forthcoming