Best Practices Handbook on Asphalt Pavement Maintenance

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Technical Report Documentation Page

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I . Report No.

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3 kcipientus Accession No

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4 I itle and Subtitk

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5 . Report Date

February 2000

I3ES'I I'RAC'lICES HANDBOOK ON ASPHALT

PAVEMENT MAINTENANCE

7 Aiitlior(s)

8. l'erfotming Organization Report No.

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M. Johnson, P.E.

9. I'ctfotming Organization Namc and Address

10. l'rojeet/7ask/Work IJnit No

Professional Fngineering Services, L,td.

2 I 3 'K'ownes Lane

Wayzata, Minnesota 55391

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 1 1 Washington Avenue, S.E.

Minneapolis, Minnesota 5.5455-0220

14 Sponsoring Agency ('ode

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I S . Supplementary Notes

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16. Ahstract (lmtit: 200 words)

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

-7-18. Availability Statement

1 7 1)ocurnenl Analysisi1)escriptots

Fog seal

Asphalt pavement maintenance

Preventive maintenance

Crack sealing

1

I9 Security ('lass (this report)

IJnclassified

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Seal coat

Pothole:;

Microsurfacing

20 Security ('lass (this page)

linclassified

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No restrictions. Document available from:

National Technical Information Services,

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2 I . No. of Pages

1

22. Price

Best Practices Handbook

on

ASPHALT PAVEMENT

MAINTENANCE

February 2000

PUBLISHED

BY

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.

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