Microdamage healing in asphalt and asphalt concrete, Volume 2 : laboratory and field testing to assess and evaluate microdamage and microdamage healing

Williams, D.; Little, D. N.; Lytton, R. L.; Kim, Y. R.; Kim, Y.

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Microdamage healing in asphalt and asphalt concrete, Volume 2 : laboratory and field testing to assess and evaluate microdamage and microdamage healing

2001-06-01
By Williams, D. ; Little, D. N. ; Lytton, R. L. ; ...

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Creators:

Williams, D. ; Little, D. N. ; Lytton, R. L. ; Kim, Y. R. ; Kim, Y.

Williams, D. ; Little, D. N. ; Lytton, R. L. ; Kim, Y. R. ; Kim, Y. Less -
Corporate Contributors:

Texas Transportation Institute ; University of Wyoming Research Corporation. Western Research Institute ; United States. Federal Highway Administration. Wyoming Division

Texas Transportation Institute ; University of Wyoming Research Corporation. Western Research Institute ; United States. Federal Highway Administration. Wyoming Division Less -
Subject/TRT Terms:

[+]

Asphalt Asphalt Concrete Asphalts Bituminous Concretes Crack Propagation Evaluation Evaluation And Assessment Fatigue(Materials) Field Tests Fracture Properties Laboratory Tests Microcracking Microdamage Healing Pavement Cracking Pavement Performance Stresss Waves Vibration
Publication/ Report Number:

FHWA-RD-98-142;Research report 7229
Resource Type:

Tech Report
Geographical Coverage:

Wyoming
Edition:

Final May 1998
Corporate Publisher:

Turner-Fairbank Highway Research Center
NTL Classification:

NTL-HIGHWAY/ROAD TRANSPORTATION-Pavement Management and Performance;NTL-HIGHWAY/ROAD TRANSPORTATION-HIGHWAY/ROAD TRANSPORTATION;
Abstract:

Volume 2 documents laboratory and field testing that provides the evidence that microdamage healing is real and measurable and that it has a significant impact on pavement performance. Part of the laboratory experiments to evaluate the impact of rest periods were performed at North Carolina State University (NCSU). The experiment included two very different asphalt binders: AAD and AAM. The experiment cleaarly demonstrated that the rest periods introduced after fatigue damage allowed significant recovery in the flexural and dynamic modulus. The recovery was attributed to the healing of microcracks within the sample.
Format:

PDF
Funding:

DTFH61-92-C-00170
Collection(s):

Federal Highway Administration US Transportation Collection
Main Document Checksum:

[+]

urn:sha256:049e052467ea6c113849ba0d6bcbc123a932b1864d21f554a91b940febab0751
Download URL:

https://rosap.ntl.bts.gov/view/dot/15431/dot_15431_DS1.pdf
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Microdamage healing in asphalt and asphalt concrete, Volume 2 : laboratory and field testing to assess and evaluate microdamage and microdamage healing

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