ICC-ES Evaluation Report ESR-4105

1.0 Evaluation Scope

Compliance with the following codes:

• 2024, 2021, 2018, 2015, 2012, 2009 and 2006 International Building Code® (IBC)
• 2024, 2021, 2018, 2015, 2012, 2009 and 2006 International Residential Code® (IRC)
• 2024, 2021, 2018, 2015, 2012, 2009 and 2006 International Existing Building Code® (IEBC)

Main references of this report are for the 2024 IBC, IRC and IEBC. See Table 4 and Table 5 for applicable sections of the code for previous editions.

Property evaluated: Structural

2.0 Uses

Adhesive anchors installed using the AC100+ Gold Adhesive Anchoring System are post-installed adhesive anchors used for anchoring threaded steel rods or deformed steel reinforcement bars in unreinforced brick masonry. These anchors are designed to resist short-term loads imposed by earthquake or wind, as noted in Section 4.0.

The adhesive anchors are an alternative to anchors described in Section 8.1.4 of TMS 402 (referenced in Section 2107.1 of the IBC) and to bolts described in Section A107.4 and Section A113.1 of the IEBC. The system may also be used where an engineered design is submitted in accordance with Section R301.1.3 of the IRC.

3.0 Description

3.1 General

The AC100+ Gold Adhesive Anchoring System comprises a two-component adhesive in cartridges, static mixing nozzles, dispensing tools, hole cleaning equipment, steel anchor elements, and steel mesh screen tubes.

Product Names

The adhesive is used with continuously threaded steel rods and deformed reinforcing bars. The adhesive, screen tubes, and steel elements are installed in pre-drilled holes into masonry walls.

3.2 Materials

3.2.1 AC100+ Gold Adhesive: A two-component adhesive packaged in dual-cylinder plastic cartridges. Components combine and react when dispensed through a disposable injection mixing nozzle. The mixing nozzle can be replaced for multiple uses. Available in 9.5-ounce (280 mL), 11.5-ounce (345 mL), and 28-ounce (825 mL) cartridges. Each cartridge is marked with an expiration date, indicating shelf life for unopened cartridges stored per manufacturer recommendations.

3.2.2 Steel Anchor Rods and Reinforcing Bars: Threaded steel rods must be 3/4-inch (19.1 mm) diameter, complying with ASTM A36, ASTM F1554 Grade 36, or ASTM A307. Rods may be pre-bent to a 22 1/2-degree configuration (not to be bent after installation). Hex nuts must conform to ASTM A563 Grade A. Nuts and washers must match the threaded rods. Deformed steel reinforcing bars must be No. 4, No. 5, or No. 6, complying with ASTM A615, A706, A767, or A996 Grade 60.

3.2.3 Steel Screen Tubes: Steel mesh screen tubes are used in unreinforced masonry with the adhesive and anchor elements. They hold the adhesive in position during installation.

3.3 Unreinforced Masonry

Unreinforced masonry walls must have a minimum nominal thickness of 13 inches (3 wythes of brick). The average in-place mortar shear strength must be no less than 40 psi (275 kPa) net, determined per IEBC Section A106.2.3.

4.0 Design and Installation

4.1 General

Two types of anchor assemblies are available: Configuration A (shear anchor or rebar dowel) and Configuration B (22 1/2-degree combination anchor).

4.1.1 Configuration A, Threaded Rods or Steel Reinforcing Bars in Shear (Shear Anchor or Rebar Dowel)

Configuration A resists shear loads only, suitable when the outside face of the wall is inaccessible. It consists of a 3/4-inch-diameter (19.1 mm) threaded rod or a No. 4, 5, or No. 6 reinforcing bar and a 15/16-inch-diameter-by-8-inch-long (23.8 mm by 203 mm) steel screen tube. (See Figure 1 for details).

4.1.2 Configuration B, Threaded Rods in Tension and Shear (22 1/2-degree Combination Anchor)

Configuration B resists a combination of tension and shear loads, also for inaccessible wall faces. The anchor is installed at a 22 1/2-degree angle in the vertical plane. It consists of a 3/4-inch-diameter (19.1 mm) prebent threaded rod and a 15/16-inch-by-13-inch-long (23.8 mm by 330 mm) steel screen tube. The rod must be embedded a minimum of 13 inches (330 mm) at the 22 1/2-degree downward angle. (See Figure 2 for details).

4.2 Design

Adhesive anchors are intended for short-term loads (wind or earthquake). They require approval by a registered design professional and installation under special inspection per Section 4.5. Edge distance and spacing must comply with Table 2.

Conditions of acceptance for threaded rods and reinforcing bars in unreinforced brick masonry:

4.2.1 Configuration A, Threaded Rods or Steel Reinforcing Bars in Shear

Installation must comply with Sections 4.1.1, 4.3, and Figure 1. Allowable shear loads are provided in Table 3 (e.g., 1,000 lbs for 3/4-inch rod, 500-1,000 lbs for rebars). No adjustment for wind or earthquake loading is permitted. These loads apply only if in-place shear tests indicate a minimum mortar strength of 40 psi (275 kPa) net.

4.2.2 Configuration B, Threaded Rods in Tension and Shear

Installation must comply with Sections 4.1.2, 4.3, and Figure 2. Allowable tension load for 3/4-inch rod is 1,200 lbs (5,340 N); allowable shear load is 460 lbs (2,045 N). No adjustment for wind or earthquake loading is permitted. For combined loads, the equation (Ps/Pt) + (Vs/Vt) ≤ 1 must be used, where Ps/Pt is applied/allowable tension load and Vs/Vt is applied/allowable shear load. These values apply only if in-place shear tests indicate a minimum mortar strength of 40 psi (275 kPa) net.

4.3 Installation

4.3.1 General

Installation must follow this report and manufacturer's printed installation instructions (MPII) (illustrated in Figure 3). Drill bit size, hole diameter, embedment depth, spacing, edge distance, and base material must meet report requirements. Gel and curing times are shown in Table 1. Special inspection per Section 4.5 is required.

4.3.2 Configuration A Installation

Spacing and edge distances must comply with Table 2. Holes must be 1-inch (25.4 mm) diameter, drilled 8 inches (203 mm) deep and perpendicular to the wall using standard carbide-tipped masonry drill bits (ANSI B212.15-1994). A rotary drill or rotary hammer drill (rotation only) must be used.

4.3.3 Configuration B Installation

Spacing and edge distances must comply with Table 2. Holes must be 1-inch (25.4 mm) diameter, drilled at a 22 1/2-degree downward angle to a minimum depth of 13 inches (330 mm), reaching within 1 inch of the opposite wall surface. A rotary drill or rotary hammer drill (rotation only) must be used.

4.4 Field Tests

In-place mortar shear strength tests are required per IEBC Section A106.2.3, indicating a minimum strength of 40 psi (275 kPa). Anchors resisting tension or combined forces must be tested per IEBC Section A107.4, with reports including test location, brick/mortar condition, bolt movement, embedment depth, wall thickness, applied load, and loading procedure.

4.5 Special Inspection

Continuous special inspection is required per IBC/IRC Sections 1704 and 1705. IEBC requires periodic inspection, direct-tension tests, and calibrated torque wrench tests per Section A107.4. Alternatively, continuous special inspection during installation of shear anchors is permitted.

5.0 Conditions of Use

Adhesive anchors comply with or are suitable alternatives to codes listed in Section 1.0, subject to these conditions:

• Use and installation must follow this report and the manufacturer's printed installation instructions (MPII) illustrated in Figure 3. This report governs in case of conflict.
• Calculations and details must be submitted to the code official for approval.
• Special inspection must be in accordance with Section 4.5.
• Use of the anchor system must be approved by the registered design professional.
• Existing mortar must have a minimum in-place shear strength of 40 psi (275kPa) per Section 3.3.
• Adhesive anchors are limited to resisting transient or short-term (wind or seismic) loads only.
• Anchors are installed in holes predrilled with a carbide-tipped masonry drill bit complying with ANSI B212.15-1994. Drilling must use a rotary drill or rotary hammer drill (rotation only); impact tools must not be used for drilling or tightening.
• The AC100+ Gold Adhesive Anchoring System is manufactured under a quality-control program with ICC-ES inspections.

6.0 Evidence Submitted

Data submitted includes information per ICC-ES Acceptance Criteria for Anchors in Unreinforced Masonry Elements (AC60) and quality-control documentation.

7.0 Identification

7.1 Product Identification: AC100+ Gold adhesive cartridges are identified by labels showing the company name (DEWALT), product name, batch number, expiration date, and report number (ESR-4105). Screen tubes are identified by packaging labels with company name and product name. Threaded rods, nuts, washers, and reinforcing bars must conform to applicable national or international specifications.

7.2 Report Holder Contact Information:

DEWALT
701 EAST JOPPA ROAD
TOWSON, MARYLAND 21286
(800) 524-3244
www.DEWALT.com
anchors@DEWALT.com

Tables

Table 1: Gel and Curing Times for AC100+ Gold Adhesive

Note: Linear interpolation for intermediate temperatures is allowed. For installations between 14°F and 23°F, cartridge temperature must be conditioned between 68°F and 95°F (20°C - 35°C).

Table 2: Spacing and Edge Distance Requirements for AC100+ Gold Adhesive Installed in Unreinforced Masonry

For SI: 1 inch = 25.4 mm

Table 3: Allowable Load Capacities for Threaded Rods and Reinforcing Bars for AC100+ Gold Adhesive Installed in Unreinforced Masonry

SHEAR ANCHOR OR REBAR DOWEL – CONFIGURATION A (FIGURE 1)

22 1/2° COMBINATION ANCHOR – CONFIGURATION B (FIGURE 2)

For SI: 1 inch = 25.4 mm, 1 lbf = 4.45 N, 1 foot-pound = 1.356 N-m, 1 psi = 6.89 Pa.
¹Allowable load values are applicable only to anchors where in-place shear tests indicate minimum mortar strength of 40 psi (275 kPa), net.
²No increase for lateral loading is permitted, such as loading induced by wind or earthquake.
³Anchors must be tested in accordance with Section 4.4 for use with the IEBC.

Table 4: Applicable Sections of the IBC, IRC, and IEBC Under Each Edition of the Code

Table 5: Applicable Sections of TMS 402 Under Each Edition of the IBC

Figures

Figure A: Examples of DEWALT Dust Removal Drilling Systems with HEPA Dust Extractors for Illustration

This figure shows various DEWALT SDS-Max and SDS-Plus drills (corded and cordless), along with associated accessories like hollow drill bits, shrouds, and HEPA dust extractors, designed to collect dust during drilling operations.

Figure 1: Configuration A (Shear Anchor or Rebar Dowel)

This diagram illustrates an anchor assembly for resisting shear loads only. It shows a 3/4-inch diameter threaded rod or a No. 4, 5, or 6 rebar, a 15/16-inch diameter screen tube (nominally 8 inches long), installed in a 1-inch diameter hole drilled perpendicular to the wall. The embedment depth is 8 inches.

Figure 2: Configuration B (22 1/2-degree Combination Anchor)

This diagram illustrates an anchor assembly for resisting combined tension and shear loads. It shows a 3/4-inch diameter threaded rod, pre-bent at a 22 1/2-degree angle, a 15/16-inch diameter screen tube (nominally 13 inches long), installed in a 1-inch diameter hole drilled at a 22 1/2-degree downward angle. The embedment depth is a minimum of 13 inches, reaching within 1 inch of the opposite wall surface.

Figure 3: AC100+ Gold Adhesive Anchors Installation Instructions (MPII)

This figure outlines the installation process in numbered steps:

1. Drilling: Drill hole to specified size and embedment using a rotary drill, ensuring dust extraction.
2. Hole Cleaning: Blow out dust (2x), brush hole (2x), and blow out dust again (2x).
3. Preparing: Check adhesive expiration, ensure correct cartridge temperature, attach new mixing nozzle, load into dispensing tool, and dispense initial adhesive strokes to ensure proper mixing. Mark embedment depth on anchor.
4. Installation: Fill screen tube with adhesive, avoiding air pockets. Insert filled screen tube into hole. Inject additional adhesive if needed. Insert anchor rod into screen tube, turning slightly. Fill any annular space with adhesive if the hole is oversized.
5. Curing and Fixture: Allow adhesive to cure fully before applying load or torque. Tighten fixture to maximum torque using a calibrated wrench.

City of LA Supplement

This document also includes a supplement for compliance with the 2023 City of Los Angeles Building Code (LABC), Residential Code (LARC), and Existing Building Code (LAEBC).