Best Practices Handbook on Asphalt Pavement Maintenance

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I I . Report No.

4 I itle and Subtitk

I l 2

Technical Report Documentation Page

3 kcipientus Accession No

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5. Report Date

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I3ES'I I'RAC'lICES HANDBOOK ON ASPHALT

PAVEMENT MAINTENANCE

February 2000

7 Aiitlior(s)

M. Johnson, P.E.

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9. I'ctfotming Organization Namc and Address

Professional Fngineering Services, L,td.

2 I 3 'K'ownes Lane

Wayzata, Minnesota 55391

8. l'erfotming Organization Report No. 10. l'rojeet/7ask/Work IJnit No I I . ('ontract (C') or Grant (G) No

12. Sponsoring Organization Name and Address

13 I ype of Report and Period Covered

llnivcrsity of Minnesota Center for Transportation Studies

200 Transportation & Safety Bldg.

5 11 Washington Avenue, S.E.

Minneapolis, Minnesota 5.5455-0220

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_ I _

I S . Supplementary Notes

14 Sponsoring Agency ('ode

I-_ I 16. Ahstract (lmtit: 200 words)

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The purpose of this handbook is to provide background information about the importance of pavement preservation and preventive maintenance, as well as present maintenance techniques for a variety of distresses and conditions. The major focus of this handbook is on preventative maintenance activities, which are performed while the roadway is still in good condition with only minimal distress, before the pavemeni falls into a condition where structural overlays, major milling or reclaiming, or

replacement is necessary.

'The most common flexible pavement distresses are cracking, roughness, weathering, raveling, rutting and bleeding. If the distresses identified in a pavement are related to structural deficiencies, the pavement section is most likely not a candidate for preventive maintenance treatment, and should be scheduled for rehabilitation or reconstruction. Maintenance treatments covered in this handbook include: Crack repair wisealing, including clean and seal, saw and seal, and rout and seal; crack filling, full depth crack repair, fog seal, seal coat, double chip seal, slurry seal, microsurfacing, thin hot mix overlays, and potholes and pavement patching.

'I'ables are outlined giving the most common flexible pavement distresses, along with the best practices for rehabilitation for each. Also given are recommended applications for crack sealers and fillers, surface treatments, and pothole patching. Specifications, technical memoranda and special provisions are included for all treatment methods recommended in the

17 1)ocurnenl Analysisi1)escriptots

Asphalt pavement maintenance Preventive maintenance

Crack sealing

1 I9 Security ('lass (this report) IJnclassified

-7-- 18. Availability Statement

Fog seal

Seal coat

Pothole:;

I Microsurfacing 20 Security ('lass (this page)

No restrictions. Document available from:

I 1 National Technical Information Services,

so 2 I . No. of Pages

22. Price

linclassified

Best Practices Handbook

on

ASPHALT PAVEMENT

MAINTENANCE

February 2000

PUBLISHEBDY

Minnesota Technology Transfer (T2) Center / LTAI' Program

Center for Transportation Studies

University of Minnesota

5 1 1 Washington Avenue S.E.

Minneapolis., MN 55455-0375

Prelpared by

Ann Johnson, P.E., Professional Engineering Services, Ltd. Edited by

Pamela J. Snopl, Managing Editor, T2/CTS

PRINTED BY

Minnesota Department of Transportation

Office of Researclh and Strategic Services

395 John Ireland Blvd.

St. Paul, MN 55155

Phone: 6 5 1-282-2274

E-mail: ora.research@dot.state.mn.us.

The University of Minnesota is an equal opportunity educator and employer.

This publication is available in alternative formats upon request.

Printed with 30 prrcent postconsumer waste.

Acknswledgments;

We wish to thank the Minnesota Local Road Research Board (LRRB) for the

financial support to make this important resource possible. The Technical

Advisory Panel that steered this project was extremely helpful in identifying

key issues and concerns of those responsible for maintaining our asphalt

pavements. They also were very gcnerous with their time to review this

document and contribute to its technical accuracy and application within

Minnesota.

We appreciate the assistance of the following people who served on the

Technical Advisory Panel for this resource document:

Gary Bergeson, Minnesota Department of Transportation

Gary Bruggeman, Minnesota Department of 'Transportation

Maria Hagen, Univeirsity of Minnesota, Center for Transportation

Studies

Jerry Geib, Minnesota Department of Transportation

Paul Keranen, Minnesota Department of Transportation

Steve Lund, Minnesota Department of Transportation

Mike Marti, Koch Pavement Solutions

Roger Olson, Minnesota Department of Transportation

Kevin Pieper, Hennepin County

Duane Schwartz, City of Roseville

Doug Weiszhaar, Mnnnesota Department of Transportation

Tom Wood, Minnesota Department of Transportation

Project consultation provided by Ann Johnson, Professional Engineering Services, Ltd.

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