Description
This report provides recommendations for the evaluation of existing nuclear safety-related concrete structures. The purpose of this report is to provide the owner, owner’s engineering staff, consultants, and others with an appropriate procedure and background for examining concrete structural performance and taking appropriate actions based on observed conditions. Methods of examination, including visual inspection and testing techniques and their recommended applications, are cited. Guidance related to acceptance criteria for various forms of degradation and methods for repair are provided.
Keywords: corrosion; cracking; degradation; inspection; load test; nondestructive testing; nuclear plant; rehabilitation; reinforcement; repair; safety; serviceability; structural design; structural evaluation.
Table of Contents
CHAPTER 1—INTRODUCTION AND SCOPE
1.1—Introduction
1.2––Scope
CHAPTER 2—DEFINITIONS
CHAPTER 3—GENERAL METHODOLOGY AND EVALUATION PROCEDURE
3.1—General methodology
3.2—Scope
3.3—Selective evaluation
3.4—Periodic evaluation
3.5—Evaluation procedure document
3.6—Evaluation techniques
CHAPTER 4—DEGRADATION MECHANISMS
4.1—General
4.2—Concrete degradation
4.3—Steel reinforcement and structural steel degradation
4.4—Prestressing steel degradation
CHAPTER 5—EVALUATION CRITERIA
5.1—Acceptance without further evaluation
5.2—Acceptance after review
5.3—Acceptance after enhanced evaluation
CHAPTER 6—EVALUATION FREQUENCY
CHAPTER 7—QUALIFICATIONS OF EVALUATION TEAM
CHAPTER 8—REPAIR
8.1—General
8.2—Design basis and compliance
8.3—Repair considerations
8.4—Design of structural repairs
8.5—Durability
8.6—Construction
8.7—Quality assurance
CHAPTER 9—REFERENCES
Authored documents
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