ACI CODE-365-24: Service Life Evaluation—Design Specification

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Description

This Design Specification provides minimum requirements for performing a service life evaluation as part of the design process for new structures and implementing the results of the evaluation into the construction phase. This Design Specification can be used as part of a design-bid-build project, a design-build project, or other project delivery options. The Design Specification is independent of the specific model or technique used to perform the service life evaluation. Although service life modeling is commonly used to evaluate chloride transport causing corrosion deterioration, the approach outlined in this Design Specification can be used for any deterioration mechanism that is capable of being modeled. The service life engineer performing the evaluation can either be the prime consultant or a subconsultant. A service life report is produced as part of this specification, documenting the service life evaluation, followed by a service life record report documenting the implementation into the new construction.

Keywords:

degradation mechanisms; deterministic modeling; durability; performance design; probabilistic modeling; quality control/quality assurance; service life prediction.

 

Document Details

Author: ACI Committee 365

Publication Year: 2024

Pages: 22

ISBN: 9781641952750

Formats: Printed Document or Protected PDF/Web View

Table of Contents

CHAPTER 1—GENERAL, p. 3

1.1—Scope, p. 3

1.2—Purpose, p. 3

1.3—Interpretation, p. 4

1.4—Service life engineer, p. 5

CHAPTER 2—DEFINITIONS, p. 6

2.1—Definitions, p. 6

CHAPTER 3—Project Criteria AND DOCUMENTATION, p. 8

3.1—General, p. 8

3.2—Terminology, p. 8

3.3—Project requirements, p. 8

3.4—Basis of design, p. 11

CHAPTER 4—APPROACH SELECTION, p. 12

4.1—Determination of governing durability limit states, p. 12

4.2—End-of-service criteria, p. 12

4.3—Service life prediction approach selection, p. 12

4.4—Mitigation or avoidance of potential degradation mechanisms, p. 13

4.5—Material performance and construction practices, p. 14

4.6—Accelerated testing, p. 14

CHAPTER 5—MODELING AND INPUT PARAMETERS, p. 15

5.1—General, p. 15

5.2—Model documentation, p. 15

5.3—Input parameters, p. 15

5.4—Deterministic modeling, p. 15

5.5—Probabilistic modeling, p. 15

5.6—Effect of cracks, p. 16

CHAPTER 6—RESULTS AND EVALUATION, p. 17

6.1—General, p. 17

6.2—Documentation, p. 17

6.3—Coordination, p. 17

6.4—Reporting, p. 18

6.5—Periodic updates to project requirements and basis of design, p. 18

CHAPTER 7—IMPLEMENTATION, p. 19

7.1—General, p. 19

7.2—Materials testing, p. 19

7.3—Validation, p. 19

7.4—Repairs during construction, p. 20

7.5—Service life record report, p. 20

COMMENTARY REFERENCES, p. 22

Authored references, p. 22

ERRATA INFO

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