DEWALT Pure220+ Adhesive Anchor System and Post-Installed Reinforcing Bar Evaluation Report

1.0 EVALUATION SCOPE

This report covers the compliance of the DEWALT Pure220+ Adhesive Anchor System with the following codes:

• 2024, 2021, 2018 and 2015 International Building Code® (IBC)
• 2024, 2021, 2018 and 2015 International Residential Code® (IRC)

Main references are for the 2024 IBC and IRC. The property evaluated is Structural.

2.0 USES

The DEWALT Pure220+ adhesive anchor system is designed to resist static, wind, or earthquake tension and shear loads in cracked and uncracked normal-weight and lightweight concrete. It is suitable for various sizes of threaded steel rods and steel reinforcing bars, installed in hammer-drilled or diamond core-drilled holes. The system is specified for concrete with a compressive strength (f'c) ranging from 2,500 psi to 8,500 psi (17.2 MPa to 58.6 MPa).

The system is also used as an alternative to cast-in-place reinforcing bars, governed by ACI 318 and IBC Chapter 19.

3.0 DESCRIPTION

The DEWALT Pure220+ Adhesive Anchor System consists of a two-component epoxy adhesive, static mixing nozzles, dispensing tools, hole cleaning equipment, and steel anchor elements (threaded steel rods or steel reinforcing bars).

3.1 General

The system comprises adhesive cartridges, static mixing nozzles, dispensers, and steel anchor elements. The manufacturer's printed installation instructions (MPII) are included with each unit package.

3.2 Materials

3.2.1 DEWALT Pure220+ Adhesive

This is an injectable two-component epoxy adhesive supplied in dual-cylinder cartridges. The components are mixed via a static mixing nozzle. The adhesive is available in various cartridge sizes: 9.5-ounce (280 mL), 13.5-ounce (400 mL), 20.5-ounce (610 mL), and 50.5-ounce (1500 mL). Each cartridge is marked with an expiration date, and the shelf life applies to unopened cartridges stored under specified conditions.

3.2.2 Hole Cleaning Equipment

Standard equipment includes steel wire brushes and air blowers. A DEWALT dust extraction system with a HEPA dust extractor is also available for hole drilling and cleaning operations.

3.2.2.1 Standard Equipment

Comprises steel wire brushes and air blowers.

3.2.2.2 DEWALT Hollow Drill Bit System (DustX+™)

This system uses DEWALT hollow drill bits with carbide tips and a HEPA vacuum to remove drilling dust, eliminating the need for separate hole cleaning.

3.2.3 Dispensers

DEWALT Pure220+ adhesive must be dispensed using manual, pneumatic, or electric dispensers supplied by DEWALT.

3.2.4 Steel Anchor Elements

3.2.4.1 Threaded Steel Rods

Threaded steel rods must be clean and continuously threaded, available in various diameters. Specifications for grades, mechanical properties, nuts, and washers are detailed in the report. Carbon steel rods may have zinc electroplating or mechanical zinc coating. Stainless steel rods must comply with specified standards. Washers and nuts must match the threaded rods. Rods must be clean, straight, and free of defects. The embedded end can be flat cut or chisel-pointed.

3.2.4.2 Steel Reinforcing Bars

These are deformed reinforcing bars (rebar) with specified size ranges. The embedded portions must be clean, straight, and free of coatings that could impair bond. Bending after installation is permitted only if done cold, and heating for bending is not allowed.

3.2.4.3 Ductility

Steel anchor elements must meet specific elongation and reduction of area criteria to be considered ductile. Elements not meeting these criteria are considered brittle.

3.2.4.4 Steel Reinforcing Bars for Post-Installed Reinforcing Bar Connections

These are deformed reinforcing bars (rebar) with specified size ranges. Embedded portions must be straight and free of mill scale, rust, and other coatings that may impair bond. Bending after installation must be done cold; heating is not permitted.

3.3 Concrete

Normal-weight and lightweight concrete must comply with IBC Sections 1903 and 1905. The specified compressive strength must be between 2,500 psi and 8,500 psi (17.2 MPa to 58.6 MPa).

4.0 DESIGN AND INSTALLATION

4.1 Strength Design

4.1.1 General

Anchor design strengths under the 2024 IBC and IRC must be determined according to ACI 318-19 and this report. Design parameters are provided in various tables within the report. Strength reduction factors (φ) are used for load combinations.

4.1.2 Static Steel Strength in Tension

Nominal static steel strength in tension (Nsa) and associated strength reduction factors (φ) are provided in the report's tables for corresponding anchor steels.

4.1.3 Static Concrete Breakout Strength in Tension

Nominal static concrete breakout strength in tension (Ncb or Ncbg) is calculated per ACI 318-19 17.6.2. The basic concrete breakout strength (Nb) uses values of kc,cr and kc,uncr from the report's tables. For calculations without cracking, specific factors apply. For lightweight concrete, ACI 318-19 17.2.4 is referenced. The value of f'c is limited to 8,000 psi (55 MPa).

4.1.4 Static Bond Strength in Tension

Nominal static bond strength in tension (Na or Nag) is calculated per ACI 318-19 17.6.5. Bond strength values are dependent on concrete compressive strength, concrete state (cracked/uncracked), drilling method, and installation conditions (dry, water-saturated, water-filled, submerged). Special inspection is qualified as periodic for most anchors.

4.1.5 Static Steel Strength in Shear

Nominal static steel strength in shear (Vsa) and the strength reduction factor (φ) are provided in the report's tables for corresponding anchor steels.

4.1.6 Static Concrete Breakout Strength in Shear

Nominal static concrete breakout strength in shear (Vcb or Vcbg) is calculated per ACI 318-19 17.7.2. The basic concrete breakout strength (Vb) uses specific values from the report's tables. The value of f'c is limited to 8,000 psi (55 MPa).

4.1.7 Static Concrete Pryout Strength in Shear

Nominal static pryout strength in shear (Vcp or Vcpg) is calculated per ACI 318-19 17.7.3.

4.1.8 Interaction of Tensile and Shear Forces

For designs involving combined tension and shear, interaction must be calculated per ACI 318-19 17.8.

4.1.9 Minimum Member Thickness, hmin, Anchor Spacing smin, Edge Distance Cmin

For post-installed reinforcing bars, minimum member thickness is not limited. Concrete cover and spacing requirements applicable to cast-in bars must be maintained. Specific requirements for minimum edge distance and spacing are provided in the report's tables.

4.1.10 Critical Edge Distance cac and ψcp,Na

The modification factor, ψcp,Na, is determined per ACI 318-19 17.6.5.5, with specific conditions for critical edge distance calculation.

4.1.11 Requirements for Seismic Design Categories C, D, E and F

For structures in these seismic design categories, anchors must be designed per ACI 318-19 17.10. Steel strength and bond strength are adjusted by seismic factors as specified in the report's tables.

4.2 Strength Design of Post-Installed Reinforcing Bars

4.2.1 General

Design of straight post-installed deformed reinforcing bars must follow ACI 318 rules for cast-in-place bars and the report's specifications.

4.2.2 Determination of bar development length ld

Development length (ld) values are determined per ACI 318 requirements for straight cast-in-place bars. Exceptions apply for uncoated and zinc-coated bars, and when using alternate calculation methods.

4.2.3 Minimum Member Thickness, hmin, Minimum Concrete Cover, Cc,min, Minimum Concrete Edge Distance, Cb,min, Minimum Spacing, Sb,min

For post-installed reinforcing bars, there is no limit on minimum member thickness. General requirements for concrete cover and spacing applicable to cast-in bars must be maintained. Specific minimum concrete cover requirements are provided based on rebar size for embedment depths greater than 20d. Minimum edge distance and spacing requirements are also detailed.

4.2.4 Design Strength in Seismic Design Categories C, D, E and F

For structures in these seismic design categories, the design of post-installed reinforcing bars must consider ACI 318-19 Chapter 18.

4.2.5 Design in Fire Resistive Construction Conditions

For post-installed reinforcing bars, the relationship between bond stress and temperature under fire conditions is provided. Bond stress must not exceed a specified limit. Temperature determination within the concrete is the responsibility of the design professional.

4.3 Allowable Stress Design (ASD)

4.3.1 General

For anchors designed using allowable stress design load combinations, allowable loads are established using specific equations. These equations involve nominal strengths and conversion factors.

4.3.2 Interaction of Tensile and Shear Forces

Interaction of tension and shear loads is calculated according to ACI 318-19 17.8.2 and 17.8.3, with specific conditions for when one load is significantly smaller than the other.

4.4 Installation

Installation parameters are illustrated in figures and tables within the report and must comply with ACI 318-19 26.7.2. Anchor locations must align with the report and approved plans. Installation must follow the manufacturer's printed installation instructions. The adhesive anchor system can be installed in downward, horizontal, and upwardly inclined orientations. Specific procedures and accessories, such as mixer extension tubes and piston plugs, are detailed for different installation scenarios. Temporary restraints may be needed for horizontal or upwardly inclined installations.

4.5 Special Inspection

Periodic special inspection is required as per Section 1705.1.1 and Table 1705.3 of the 2024 IBC. The special inspector verifies anchor type, adhesive expiration date, dimensions, concrete properties, hole cleaning, spacing, edge distances, embedment, torque, and adherence to manufacturer instructions. Initial installations of each type and size require verification. Subsequent installations by the same personnel may not require continuous inspection, but changes in product or personnel necessitate a new initial inspection. Regular inspections are required for ongoing installations. Continuous special inspection is mandated for horizontal or upwardly inclined orientations resisting sustained tension loads. Additional IBC requirements in Sections 1705, 1706, or 1707 must also be observed.

5.0 CONDITIONS OF USE

The DEWALT Pure220+ Adhesive Anchor and Post Installed Reinforcing Bar Connection System complies with or is a suitable alternative to codes specified in Section 1.0, subject to the following conditions:

• Installation must follow manufacturer's printed instructions.
• Anchors and bars must be installed in cracked and uncracked normal-weight concrete with a specified compressive strength of 2,500 psi to 8,500 psi (17.2 MPa to 58.6 MPa).
• Post-installed reinforcing bars in hammer-drilled or diamond core holes are for static, wind, or earthquake loads in cracked and uncracked normal-weight concrete.
• The value of f'c used for calculations must not exceed 8,000 psi (55 MPa).
• Anchors and bars must be installed in pre-drilled holes according to instructions.
• Loads must be adjusted per Section 1605.1 of the 2024 IBC for strength or allowable stress design.
• Anchor strength in Seismic Design Categories C, D, E, and F must be adjusted per Section 4.1.11.
• DEWALT Pure220+ adhesive anchors are permitted in concrete that is cracked or may crack.
• Strength design values are established per Section 4.1.
• Minimum anchor spacing, edge distance, and member thickness must comply with the report's values.
• Calculations and details demonstrating compliance must be submitted to the code official, prepared by a registered design professional if required.
• Anchors are not permitted to support fire-resistive construction unless specific conditions are met.
• The report does not cover performance under fatigue or shock loading due to unavailability of acceptance criteria.
• Zinc-plated carbon steel threaded rods or reinforcing bars are limited to dry, interior locations.
• Hot-dipped galvanized carbon steel and stainless-steel rods are suitable for exterior or damp environments.
• Steel anchoring materials in contact with treated wood must be zinc-coated steel or stainless steel, meeting specific coating weight standards.

5.16 Periodic special inspection

Periodic special inspection must be provided in accordance with Section 4.3. Continuous special inspection for anchors in horizontal or upwardly inclined orientations resisting sustained tension loads must be provided per Section 4.3.

5.17 Installation of anchors and post-installed reinforcing bars

Installation in horizontal or upwardly inclined orientations to resist sustained tension loads must be performed by personnel certified by an applicable certification program per ACI 318-19 26.7.2(e).

5.18 DEWALT Pure220+ adhesive anchors and post-installed reinforcing bars

May be used to resist tension and shear forces in floor, wall, and overhead installations into concrete with temperatures between 41°F and 104°F (5°C and 40°C).

5.19 DEWALT Pure220+ adhesive

Is manufactured under a quality control program with inspections by ICC-ES.

6.0 EVIDENCE SUBMITTED

Data in accordance with the ICC-ES Acceptance Criteria for Post-installed Adhesive Anchors and Reinforcing Bar Connections in Concrete (AC308), published April 2025, which incorporates requirements in ACI 355.4-19 for use in cracked and uncracked concrete.

7.0 IDENTIFICATION

Product labels must include the ICC-ES mark of conformity, electronic labelling, or the evaluation report number (ESR-5144), along with the report holder's name, registered trademark, or logo.

DEWALT Pure220+ adhesive is identified by packaging with the manufacturer's name (DEWALT), address, anchor name, lot number, and expiration date. Threaded rods, nuts, washers, and reinforcing bars must conform to applicable national or international specifications as set forth in Tables 2 and 3.

7.3 The report holder's contact information is:

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

TABLE 1-DESIGN TABLE INDEX

This table provides an index to the design strength information for threaded rods and reinforcing steel, referencing various tables for steel strength, concrete strength, and bond strength.

TABLE 2-SPECIFICATIONS AND PHYSICAL PROPERTIES OF COMMON CARBON AND STAINLESS STEEL THREADED ROD MATERIALS

This table details the specifications and physical properties of various carbon and stainless steel threaded rod materials, including ultimate strength, yield strength, elongation, reduction of area, and nut specifications.

TABLE 3-SPECIFICATIONS AND PHYSICAL PROPERTIES OF COMMON CARBON REINFORCING BARS

This table outlines the specifications and physical properties of common carbon reinforcing bars, including ultimate strength, yield strength, and applicable standards.

FIGURE 1- EXAMPLES OF DEWALT DUST REMOVAL DRILLING SYSTEMS WITH HEPA DUST EXTRACTORS FOR ILLUSTRATION

This figure displays examples of DEWALT dust removal drilling systems, including various drills, accessories, and HEPA dust extractors.

FIGURE 2- PURE220+ ADHESIVE ANCHOR SYSTEM INCLUDING TYPICAL STEEL ANCHOR ELEMENTS AND BASIC INSTALLATION PARAMETERS

This figure illustrates the DEWALT Pure220+ adhesive anchor system, showing typical steel anchor elements and key installation parameters.

TABLE 4-STEEL DESIGN INFORMATION FOR U.S. CUSTOMARY UNIT THREADED ROD

This table provides steel design information for U.S. customary unit threaded rods, including nominal strength as governed by steel strength, reduction factors for seismic shear, and strength reduction factors for tension and shear for various steel grades.

TABLE 5-CONCRETE BREAKOUT DESIGN INFORMATION FOR U.S. CUSTOMARY UNIT THREADED ROD

This table details concrete breakout design information for U.S. customary unit threaded rods, including effectiveness factors for cracked and uncracked concrete, minimum spacing and edge distance, and strength reduction factors for concrete failure modes.

TABLE 6-BOND STRENGTH DESIGN INFORMATION FOR U.S. CUSTOMARY UNIT THREADED ROD IN HOLES DRILLED WITH A HAMMER DRILL AND CARBIDE BIT (OR DEWALT HOLLOW CARBIDE DRILL BIT)

This table provides bond strength design information for U.S. customary unit threaded rods in holes drilled with a hammer drill and carbide bit, including minimum and maximum embedment, characteristic bond strength under different temperature ranges, and permissible installation conditions.

TABLE 7-BOND STRENGTH DESIGN INFORMATION FOR U.S. CUSTOMARY UNIT THREADED ROD IN HOLES DRILLED WITH A DIAMOND CORE BIT

This table provides bond strength design information for U.S. customary unit threaded rods in holes drilled with a diamond core bit, including minimum and maximum embedment, characteristic bond strength under different temperature ranges, and permissible installation conditions.

TABLE 8-STEEL DESIGN INFORMATION FOR U.S. CUSTOMARY UNIT REINFORCING BARS

This table presents steel design information for U.S. customary unit reinforcing bars, including nominal strength as governed by steel strength, reduction factors for seismic shear, and strength reduction factors for tension and shear for various reinforcing bar grades.

TABLE 9-CONCRETE BREAKOUT DESIGN INFORMATION FOR U.S. CUSTOMARY UNIT REINFORCING BARS

This table details concrete breakout design information for U.S. customary unit reinforcing bars, including effectiveness factors for cracked and uncracked concrete, minimum spacing and edge distance, and strength reduction factors for concrete failure modes.

TABLE 10-BOND STRENGTH DESIGN INFORMATION FOR U.S. CUSTOMARY UNIT REINFORCING BARS IN HOLES DRILLED WITH A HAMMER DRILL AND CARBIDE BIT (OR DEWALT HOLLOW CARBIDE DRILL BIT)

This table provides bond strength design information for U.S. customary unit reinforcing bars in holes drilled with a hammer drill and carbide bit, including minimum and maximum embedment, characteristic bond strength under different temperature ranges, and permissible installation conditions.

TABLE 11-BOND STRENGTH DESIGN INFORMATION FOR U.S. CUSTOMARY UNIT REINFORCING BARS IN HOLES DRILLED WITH A DIAMOND CORE BIT

This table provides bond strength design information for U.S. customary unit reinforcing bars in holes drilled with a diamond core bit, including minimum and maximum embedment, characteristic bond strength under different temperature ranges, and permissible installation conditions.

TABLE 12-STEEL DESIGN INFORMATION FOR METRIC THREADED ROD

This table presents steel design information for metric threaded rods, including nominal strength as governed by steel strength, reduction factors for seismic shear, and strength reduction factors for tension and shear for various metric threaded rod specifications.

TABLE 13-CONCRETE BREAKOUT DESIGN INFORMATION FOR METRIC THREADED ROD

This table details concrete breakout design information for metric threaded rods, including effectiveness factors for cracked and uncracked concrete, minimum spacing and edge distance, and strength reduction factors for concrete failure modes.

TABLE 14-BOND STRENGTH DESIGN INFORMATION FOR METRIC THREADED ROD IN HOLES DRILLED WITH A HAMMER DRILL AND CARBIDE BIT (OR DEWALT HOLLOW CARBIDE DRILL BIT)

This table provides bond strength design information for metric threaded rods in holes drilled with a hammer drill and carbide bit, including minimum and maximum embedment, characteristic bond strength under different temperature ranges, and permissible installation conditions.

TABLE 15-STEEL DESIGN INFORMATION FOR EU METRIC AND CANADIAN METRIC REINFORCING BARS

This table presents steel design information for EU metric and Canadian metric reinforcing bars, including nominal strength as governed by steel strength, reduction factors for seismic shear, and strength reduction factors for tension and shear.

TABLE 16-CONCRETE BREAKOUT DESIGN INFORMATION FOR EU AND CANADIAN METRIC REINFORCING BARS

This table details concrete breakout design information for EU and Canadian metric reinforcing bars, including effectiveness factors for cracked and uncracked concrete, minimum spacing and edge distance, and strength reduction factors for concrete failure modes.

TABLE 17-BOND STRENGTH DESIGN INFORMATION EU METRIC REINFORCING BARS IN HOLES DRILLED WITH A HAMMER DRILL AND CARBIDE BIT (OR DEWALT HOLLOW CARBIDE DRILL BIT)

This table provides bond strength design information for EU metric reinforcing bars in holes drilled with a hammer drill and carbide bit, including minimum and maximum embedment, characteristic bond strength under different temperature ranges, and permissible installation conditions.

TABLE 18-BOND STRENGTH DESIGN INFORMATION METRIC CANADIAN REINFORCING BARS IN HOLES DRILLED WITH A HAMMER DRILL AND CARBIDE BIT (OR DEWALT HOLLOW CARBIDE DRILL BIT)

This table provides bond strength design information for metric Canadian reinforcing bars in holes drilled with a hammer drill and carbide bit, including minimum and maximum embedment, characteristic bond strength under different temperature ranges, and permissible installation conditions.

TABLE 19-DEVELOPMENT LENGTH FOR U.S. CUSTOMARY UNIT REINFORCING BARS IN HOLES DRILLED WITH A HAMMER DRILL AND CARBIDE BIT (OR DEWALT HOLLOW CARBIDE DRILL BIT) OR DIAMOND CORE BIT

This table provides development length information for U.S. customary unit reinforcing bars, detailing lengths based on different steel and concrete strengths for hammer drill and diamond core bit installations.

TABLE 20-DEVELOPMENT LENGTH FOR EU METRIC REINFORCING BARS IN HOLES DRILLED WITH A HAMMER DRILL AND CARBIDE BIT (OR DEWALT HOLLOW CARBIDE DRILL BIT) OR DIAMOND CORE BIT

This table provides development length information for EU metric reinforcing bars, detailing lengths based on different steel and concrete strengths for hammer drill and diamond core bit installations.

TABLE 21-DEVELOPMENT LENGTH FOR CA METRIC REINFORCING BARS IN HOLES DRILLED WITH A HAMMER DRILL AND CARBIDE BIT (OR DEWALT HOLLOW CARBIDE DRILL BIT) OR DIAMOND CORE BIT

This table provides development length information for CA metric reinforcing bars, detailing lengths based on different steel and concrete strengths for hammer drill and diamond core bit installations.

FIGURE 3- BOND STRENGTH VS TEMPERATURE FOR POST-INSTALLED REINFORCING BAR APPLICATIONS SUBJECT TO ELEVATED TEMPERATURE / FIRE

This figure illustrates the relationship between mean tension bond strength and temperature for post-installed reinforcing bar applications under elevated temperature or fire conditions, including relevant equations.

TABLE 22- APPLICABLE SECTIONS OF THE IBC CODE UNDER EACH EDITION OF THE IBC

This table lists the applicable sections of the International Building Code (IBC) for various editions (2024, 2021, 2018, 2015).

TABLE 23- APPLICABLE SECTIONS OF ACI 318 UNDER EACH EDITION OF THE IBC

This table lists the applicable sections of ACI 318 (American Concrete Institute) under each edition of the IBC.

FIGURE 4-INSTALLATION INSTRUCTIONS

This section provides detailed installation instructions for the DEWALT Pure220+ Adhesive Anchor System, covering steps from hole cleaning and preparation to curing and fixture installation, with accompanying tables for working and cure times.

FIGURE 4-INSTALLATION INSTRUCTIONS (Continued)

This section continues the detailed installation instructions, including specific information on wire brush and piston plug usage for various sizes of threaded rods and reinforcing bars, anchor parameter details, and a list of system accessories.