Description
This guide provides an introduction to the evaluation and repair of existing concrete structures post-tensioned with unbonded single-strand tendons. It is intended to familiarize owners, licensed design professionals, contractors, suppliers, and other interested parties with the procedures, tests, equipment, and other aspects of the evaluation and repair process. This guide demonstrates how the strength and serviceability of a structure that has experienced deterioration can be evaluated and restored to its original or greater strength and serviceability.
53 pages; 8½ x 11 in. (soft cover)
Published April 2012
Table of Contents
1.0—Introduction and scope
1.1—Introduction
1.2—Scope
2.0—Notation and definitions
2.1—Notation
2.2—Definitions
3.0—Evaluation
3.1—Evaluation process
3.2—Field investigation/nondestructive evaluation
3.3—Field investigation and exploratory evaluation
3.4—Laboratory testing and analysis
3.5—Structural analysis
3.6—Evaluation report
4.0—Repair
4.1—Introduction and preparation
4.2—Plans and specifications
4.3—Safety
4.4—Concrete removal
4.5—Repair of tendons
4.6—Concrete placement
4.7—Concrete protection
4.8—Maintenance
4.9—Strengthening with post-tensioning
4.10—Record documents and closeout
4.11—Summary
5.0—References
5.1—Referenced standards
5.2—Cited references
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