ACI CODE-355.4-19 (Reapproved 2021): Qualification of Post-Installed Adhesive Anchors in Concrete and Commentary

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This standard prescribes testing programs and evaluation requirements for post-installed adhesive anchors intended for use in concrete under the design provisions of ACI 318. Testing and assessment criteria are provided for various conditions of use, including seismic loading; sustained loading; aggressive environments; reduced and elevated temperatures; and for determining whether anchors are acceptable for use in uncracked concrete only, or acceptable for service both in cracked and uncracked concrete. Criteria are provided for establishing the characteristic bond strength, reductions for adverse conditions, and the anchor category and associated job-site quality control requirements.


adhesive anchors; cracked concrete; fasteners; post-installed anchors; qualification procedures; uncracked concrete.


Document Details

Author: ACI Committee 355

Pages: 51

Categories: Codes

Formats: Printed Document, Protected PDF/Web View, or PDF

Table of Contents

Chapter 1—Introduction and scope, p. 3



1.3—Units of measurement

Chapter 2—Notation and definitions, p. 5



Chapter 3—General requirements, p. 12

3.1—Test organization

3.2—Variables and options

3.3—Test requirements

3.4—Assessment for multiple anchor element types for adhesive anchors

3.5—Assessment for alternate drilling methods

Chapter 4—Requirements for test specimens, anchor installation, and testing, p. 18

4.1—Testing by ITEA and manufacturer

4.2—Test samples

4.3—Concrete for test members

4.4—Requirements for test members

4.5—Anchor installation

4.6—Drill bit requirements

4.7—Test methods

4.8—Tests in cracked concrete

4.9—Changes to products

Chapter 5—Requirements for anchor identification, p. 25

5.1—Basic requirements


5.3—Fingerprinting adhesive materials


Chapter 6—Reference tests, p. 25


6.2—Required tests

6.3—Conduct of tests

Chapter 7—Reliability tests, p. 26


7.2—Required tests

7.3—Conduct of tests

7.4—Reliability tests

7.5—Sensitivity to hole cleaning—dry concrete

7.6—Sensitivity to hole cleaning—saturated concrete

7.7—Sensitivity to hole cleaning—water-filled hole

7.8—Sensitivity to hole cleaning—submerged concrete

7.9—Sensitivity to mixing effort

7.10—Sensitivity to installation in water-saturated concrete

7.11—Sensitivity to installation in water-filled hole—saturated concrete

7.12—Sensitivity to installation in submerged concrete

7.13—Sensitivity to crack width—low-strength concrete

7.14—Sensitivity to crack width—high-strength concrete

7.15—Sensitivity to crack width cycling

7.16—Sensitivity to freezing and thawing

7.17—Sensitivity to sustained loading at standard and maximum long-term temperature

7.18—Sensitivity to installation direction

7.19—Torque test

Chapter 8—Service-condition tests, p. 33


8.2—Required tests

8.3—Conduct of tests

8.4—Tension tests in uncracked and cracked concrete

8.5—Tension tests at elevated temperature

8.6—Tension tests with decreased installation temperature

8.7—Establishment of cure time at standard temperature

8.8—Durability assessment

8.9—Verification of full concrete capacity in a corner

8.10—Determination of minimum spacing and edge distance to preclude splitting

8.11—Tests to determine shear capacity of anchor elements with nonuniform cross section

8.12—Simulated seismic tension tests

8.13—Simulated seismic shear tests

Chapter 9—Supplemental tests, p. 39

9.1—Round-robin tests

9.2—Tests to determine minimum member thickness

Chapter 10—Assessment of anchors, p. 40

10.1—Analysis of data

10.2—Normalization of anchor capacities for measured concrete bond and steel strengths

10.3—Establishing characteristic values

10.4—Assessment of characteristic tension capacity associated with concrete breakout and pullout

10.5—Assessment of steel tension capacity

10.6—Assessment of steel shear capacity

10.7—Assessment of minimum member thickness

10.8—Assessment of maximum tightening torque

10.9—Assessment of behavior under crack cycling

10.10—Assessment of freezing-and-thawing behavior

10.11—Assessment of sustained load behavior

10.12—Assessment of performance associated with installation direction

10.13—Assessment of performance at elevated temperature

10.14—Assessment of performance with decreased installation temperature

10.15—Assessment for cure time at standard temperature

10.16—Assessment of durability requirement

10.17—Assessment of performance in corner test

10.18—Assessment of performance in minimum spacing and edge distance test

10.19—Assessment of performance under seismic tension

10.20—Assessment of performance under seismic shear

10.21—Establishment of hole cleaning procedures

10.22—Establishment of on-site quality control and installation conditions

10.23—Assessment based on installation and environmental conditions

10.24—Assessment for fire exposure

Chapter 11—Data presentation, p. 52

11.1—General requirements

11.2—Contents of evaluation report

11.3—Data presentation

Chapter 12—Independent testing and evaluation agency requirements, p. 54

12.1—General requirements


Chapter 13—Quality control requirements, p. 55

13.1—Quality assurance program

13.2—Quality control manuals

13.3—Special inspection

Chapter 14—References, p. 55

14.1—Referenced standards and reports

14.2—Cited references


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