Evaluating the need to seal thermal cracks in Alaska's asphalt concrete pavements : [summary].

McHattie, Robert; Mullin, Anthony; Liu, Juanyu; Alaska University Transportation Center; Alaska. Dept. of Transportation. Research, Development, and Technology Transfer

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Evaluating the need to seal thermal cracks in Alaska's asphalt concrete pavements : [summary].

2013-04-01
By McHattie, Robert ; Mullin, Anthony ; Liu, Juanyu

[PDF-318.72 KB]

English

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Details:

Creators:

McHattie, Robert ; Mullin, Anthony ; Liu, Juanyu

McHattie, Robert ; Mullin, Anthony ; Liu, Juanyu Less -
Corporate Creators:

Alaska University Transportation Center ; Alaska. Dept. of Transportation. Research, Development, and Technology Transfer

Alaska University Transportation Center ; Alaska. Dept. of Transportation. Research, Development, and Technology Transfer Less -
Corporate Contributors:

United States. Federal Highway Administration
Subject/TRT Terms:

[+]

Asphalt Concrete Pavements Cracking Of Asphalt Concrete Pavements Field Studies Pavement Cracking Pavement Maintenance Seal Coating Sealing Compounds
Publication/ Report Number:

FHWA-AK-RD-12-20 ; INE/AUTC 12.27

FHWA-AK-RD-12-20 ; INE/AUTC 12.27 Less -
Resource Type:

Brief
Geographical Coverage:

Alaska
Corporate Publisher:

Alaska. Dept. of Transportation and Public Facilities
Abstract:

The AKDOT&PF has promoted routine sealing of all cracks in asphalt concrete (AC) pavements for many years. In doing so,

AKDOT&PF follows the generally accepted “best practice” of sealing pavement cracks to the extent that time and money allows. This

study of 91 sites on 20+ year old AC pavements in AKDOT&PF’s Central and Interior Regions identified two distinct types of thermal

cracks. Both types are known to be ubiquitous on AC pavements throughout all but the most southern parts of the State. Based on the

field observations during 2012, researchers conclude that significant maintenance funds can be saved or redirected by not sealing or

reduced sealing of thermal cracks in AC pavements. Furthermore, the authors suggest that thermal crack maintenance be significantly

reduced without negatively influencing general long-term pavement performance.

The report addresses, separately, each of the two recognized forms of thermal cracking. It recommends that “lessor thermal cracking”

receive little or no maintenance. The report recommends that maintenance treatment of even the relatively large “major transverse

thermal cracks” can be greatly reduced based on inexpensive, long-term assessments following new pavement construction.
Format:

PDF
Funding:

DTRT06-G-0011 ; AUTC Project No. 510005 ; T2-11-06

DTRT06-G-0011 ; AUTC Project No. 510005 ; T2-11-06 Less -
Collection(s):

University Transportation Centers US Transportation Collection
Main Document Checksum:

[+]

urn:sha256:81a17b25ee30ee3c49869beeb63178b743ed06d6d4cb8eb18a47a33d7200a903
Download URL:

https://rosap.ntl.bts.gov/view/dot/27355/dot_27355_DS1.pdf
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Evaluating the need to seal thermal cracks in Alaska's asphalt concrete pavements : [summary].

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