546.2R-10 Guide to Underwater Repair of Concrete

546.2R-10 Guide to Underwater Repair of Concrete

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Description

This document provides guidance on the selection and application of materials and methods for the repair and strengthening of concrete structures under water. An overview of materials and methods for underwater repair is presented as a guide for making a selection for a particular application. References are provided for additional information about selected materials and construction methods.

Keywords: anti-washout; cathodic protection; concrete removal; deterioration; diver; formwork; marine placement; pile-jackets; polymer(s); repair; surface preparation; tremie; underwater.

 

Document Details

Author: ACI Committee 546

Publication Year: 2010

Pages: 32.00

ISBN: 9780870313837

Categories: Repair

Formats: PDF

Table of Contents

Chapter 1—General

1.1—Introduction

1.2—Scope

1.3—Underwater access technology

Chapter 2—Notation and definitions

2.1—Notation

2.2—Definitions

Chapter 3—Causes of deterioration

3.1—Deficient construction practices

3.2—Marine organisms

3.3—Chemical attack

3.4—Corrosion

3.5—Mechanical damage

3.6—Freezing and thawing damage

3.7—Salt scaling

3.8—Scour

Chapter 4—Investigation and evaluation

4.1—Introduction

4.2—Visual inspection

4.3—Tactile inspection

4.4—Underwater nondestructive testing of concrete

4.5—Sampling and destructive testing

4.6—Evaluation

Chapter 5—Preparation for repair

5.1—General

5.2—Excavation and debris removal

5.3—Concrete removal

5.4—Surface preparation

5.5—Reinforcement preparation

5.6—Concrete anchors

Chapter 6—Formwork

6.1—General

6.2—Rigid forms

6.3—Semi-rigid forms

6.4—Flexible forms

Chapter 7—Materials and methods

7.1—General considerations

7.2—Anti-washout admixtures

7.3—Preplaced-aggregate concrete

7.4—Tremie concrete

7.5—Pumped concrete and grout

7.6—Free dump through water

7.7—Epoxy grouting

7.8—Epoxy injection

7.9—Gloved-hand placement

7.10—Geomembrane systems

7.11—Cathodic protection

7.12—Fiber-reinforced polymers

Chapter 8—Inspection of repairs

8.1—Introduction

8.2—Procedure

8.3—Documentation

Chapter 9—References

9.1—Referenced standards and reports

9.2—Cited references

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