ACI PRC-325.13-25: Concrete Overlays for Pavement Rehabilitation—Report

Description

This report provides information on the use of both bonded and unbonded concrete overlay solutions for the rehabilitation of concrete and asphalt pavements. Information is provided on the characteristics of each overlay type along with important design and construction considerations. Critical considerations are provided for the selection of the appropriate overlay type to meet the needs and condition of the project.

Keywords:

bonded; concrete overlay; construction; design; performance; rehabilitation; unbonded.

Document Details

Author: ACI Committee 325

Publication Year: 2025

Pages: 31

ISBN: 9781641953368

Formats: Printed Document or Protected PDF/Web View

Table of Contents

CHAPTER 1—INTRODUCTION AND SCOPE, p. 2

1.1—Introduction, p. 2

1.2—Scope, p. 2

CHAPTER 2—DEFINITIONS, p. 2

CHAPTER 3—CONCRETE OVERLAY TYPES, p. 3

3.1—Introduction, p. 3

3.2—Concrete overlays of asphalt (COA), p. 4

3.3—Concrete overlays of concrete (COC), p. 5

CHAPTER 4—SELECTION OF CONCRETE OVERLAY ALTERNATIVES, p. 5

4.1—Introduction, p. 5

4.2—Historical data and future projections (desk review), p. 6

4.3—Existing pavement evaluation (field review), p. 7

4.4—Other pavement evaluation factors, p. 8

CHAPTER 5—MATERIALS, p. 10

5.1—Introduction, p. 10

5.2—Concrete materials and mixture, p. 11

5.3—Dowel bars and tie bars, p. 12

5.4—Fibers, p. 13

5.5—Separation layer, p. 13

CHAPTER 6—CONCRETE OVERLAY DESIGN, p. 15

6.1—Introduction, p. 15

6.2—General design considerations, p. 15

6.3—Design of concrete overlays of asphalt, p. 16

6.4—Design of concrete overlays of concrete, p. 17

6.5—Joint design, p. 18

6.6—Drainage considerations, p. 19

6.7—Sustainability considerations, p. 19

CHAPTER 7—CONSTRUCTION, p. 19

7.1—Introduction, p. 19

7.2—Preconstruction repairs, p. 19

7.3—Surface preparation, p. 20

7.4—Placement, finishing, and texturing, p. 21

7.5—Curing, p. 21

7.6—Sawing, p. 22

7.7—Opening to traffic, p. 22

CHAPTER 8—PERFORMANCE, p. 22

8.1—Literature review, p. 22

CHAPTER 9—REFERENCES, p. 24

Authored documents, p. 25

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