DEWALT Adhesive Anchors Anchoring and Fastening Systems Instructions

: June 13, 2024
: Dewalt

Table of Contents

DEWALT Adhesive Anchors Anchoring and Fastening Systems
Product Information
Product Usage Instructions
Pure110+® Adhesive Anchoring System and Installations into Oversized
References
Read User Manual Online (PDF format)
Download This Manual (PDF format)

DEWALT Adhesive Anchors Anchoring and Fastening Systems

Product Information

Product Name: DEWALT Pure110+ Adhesive Anchors
Manufacturer: DEWALT
Address: 701 East Joppa Road Towson, MD 21286
Contact Number: 800-524-3244
Website: www.DEWALTanchors.com
Testing Standards: ACI 318-14, Chapter 17 and ACI 318-11 Appendix D
Additional References: 2018 or 2015 IBC and 2012 IBC

Product Usage Instructions

The DEWALT Pure110+ Adhesive Anchors are designed for use in concrete applications. 2. Before using the adhesive anchors, it is important to ensure that they are tested and qualified with the appropriate drill hole specifications for each anchor diameter, as required by ACI 318-14, Chapter 17, and ACI 318-11 Appendix D.
The size of the drilled hole in concrete can significantly affect the bond strength of the installed adhesive anchors.
The typical standard drill hole specifications provided by DEWALT are nominally 1/16-inch or 1/8-inch larger than the threaded rod or reinforcing bar.
In some cases, oversizing the drill hole may be desirable, such as when repairing existing anchorage in the same location, allowing for final adjustment of the anchoring points, or due to unintentional mistakes.
DEWALT has conducted supplemental laboratory testing on Pure110+ adhesive anchors installed in holes approximately 150% larger than the nominal size of the threaded rod or reinforcing bar, with a maximum annular gap of 1/2 inch.
The results of the testing for both typical standard drill holes and oversized holes, along with the drilling and cleaning method, are provided in a table.
The bond strength reduction factor, oh, derived from the oversized drill hole testing should be applied to the bond strength when calculating the bond strength capacity for the given adhesive anchor and relevant conditions.
The DEWALT Pure110+ Adhesive Anchors are suitable for use in tension tests conducted in dry uncracked normal-weight concrete, in accordance with ACI 355.4/ASTM E488. Please refer to the complete user manual for detailed installation instructions, safety precautions, and other important information.

Pure110+® Adhesive Anchoring System and Installations into Oversized

Drilled Holes

ACI 318-14, Chapter 17, and ACI 318-11 Appendix D (and by reference to the 2018 or 2015 IBC and 2012 IBC, respectively) require that adhesive anchors for concrete be tested and qualified with drill hole specifications for each anchor diameter. This is because the influence of the size of the drilled hole in concrete can have a significant effect on the bond strength of installed adhesive anchors.

However, there are cases where an allowance for oversizing the drill hole is desirable (e.g. repairing existing anchorage in the same location, ability for final adjustment of the anchoring points, unintentional mistakes). The ACI qualification standard for adhesive anchors also has provisions for oversized drill hole specifications provided testing is conducted to determine the effects of increasing the annular gap between the threaded rod or reinforcing bar and the drilled hole.

Up until now, DEWALT published bond strengths for Pure110+ adhesive anchors that are based on typical standard drill hole specifications that are nominally 1/16-inch or 1/8-inch larger than the threaded rod or reinforcing bar (table below provided for baseline reference):

Typical Standard Drill Holes| Nominal threaded rod / reinforcing bar size
---|---
3/8” or #3| 1/2″| #4| 5/8” or #5| 3/4″ or #6| 7/8” or #7| 1” or #8| #9| 1 1/ 4 ”| #10
Threaded rod outside diameter (in.)| 0.375| 0.500| 0.625| 0.750| 0.875| 1.000| –| 1.250| –
Nominal rebar diameter (in.)| 0.375| 0.500| 0.625| 0.750| 0.875| 1.000| 1.125| –| 1.250
Nominal ANSI drill bit size (in.)| 7/16| 9/16| 5/8| 11/16 or 3/4| 7/8| 1| 11/8| 13/8| 13/8| 11/2

Fortunately, additional drill hole specifications are now available for end users. DEWALT has conducted supplemental laboratory testing on Pure110+ adhesive anchors installed in holes approximately 150% larger than the nominal size of the threaded rod or reinforcing bar (up to a maximum annular gap of 1/2 inch):

Oversized Drill Holes	Nominal threaded rod / reinforcing bar size
3/8” or #3	1/2″
or #7**	1” or #8
Threaded rod outside diameter (in.)	0.375
–	1.250
Nominal rebar diameter (in.)	0.375
–	1.250
Nominal ANSI drill bit size (in.)	9/16
13/4	13/4

The table below shows the results of the testing adhesive anchor system in typical standard drill holes and oversized holes crossed with the drilling and cleaning method. The corresponding reduction factor derived from oversized drill hole testing is provided that should be applied to the bond strength when calculating the bond strength capacity for the given adhesive anchor and relevant conditions.

Adhesive Anchor System| Drill Hole Size| Drilling Method| Hole Cleaning Method| Bond Strength

Reduction Factor, α oh

---|---|---|---|---
DEWALT

Pure110+

N/A = Not applicable.

The results shown are based on tension tests conducted in accordance with ACI 355.4/ASTM E488 in dry uncracked normal-weight concrete.
Holes were drilled with a hammer drill and standard carbide drill bit and cleaned following published instructions for the Pure110+ adhesive anchor system. Hollow drill bits (DustX+ System) may be used, as applicable.
Standard carbide drill bits and hollow drill bits must meet the requirements of ANSI B212.15; ANSI compliance for hole drilling is required by ICC-ES ESR-3298.
See published literature for the specific adhesive anchor system for additional design and installation information which is available at anchors.DEWALT.com.
The maximum annular gap between the threaded rod or reinforcing bar is limited to 1/2 inch.
The bond strength reduction factor determined for oversized holes is applicable for short-term loading only. The reduction factor, αoh, is a supplement to all other relevant design considerations for the specific application.

Pure110+ adhesive anchors will achieve published design strengths for short- term loading conditions (e.g. seismic loading) when the product is properly installed into oversized drill holes drilled in dry concrete. The adhesive anchors must be installed in accordance with all other published installation instructions specific to the application.