ACI 423.8R-10

This report gives general information regarding the evaluation of corrosion damage in structures reinforced with grouted multistrand and bar tendons. A review of current practice is included along with the historical background. Specific potential problem areas for grouted tendons are discussed for each critical part of the tendon. Current methods for evaluating corrosion damage and typical repair schemes are included.

Contents: Chapter 1--Introduction, p. 2

1.1--General

1.2--Background

1.3--Scope

1.4--Limitations

Chapter 2--Definitions, p. 2

Chapter 3--Review of current practice, p. 3

3.1--General

3.2--Grouting requirements

3.3--Tendon protection requirements

Chapter 4--Grouted tendons, p. 4

4.1--Evolution of grouted tendons

4.2--Types of grouted tendons

4.3--Potential problem areas

4.4--Duct

4.5--Grout

4.6--Strand and bar

4.7--Anchorage hardware and protection

4.8--Performance record

Chapter 5--Evaluating corrosion damage, p. 7

5.1--General

5.2--Monitoring

5.3--Nondestructive methods

5.4--Exploratory methods

Chapter 6--Repair schemes and methods, p. 9

6.1--General

6.2--Grouting of voids

6.3--Tendon repair

Chapter 7--References, p. 9

7.1--Cited references