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,
so
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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