BLISTERING OF ASPHALT OVERLAYS CAUSED BY MICROORGANISMS (WITH DISCUSSION)
Despite numerous studies that have reported microbial utilization of asphalt under both laboratory and natural conditions, little consideration is (or has been) given to microbial activity as a possible cause of asphalt pavement deterioration. Recently, highway officials in Mississippi began to notice unexplained blistering and cracking of newly overlaid asphalt highways and/or the deterioration of the underlying asphalt or concrete. These highway failures were similar to highway failures in Kansas, described by Harris and his associates in the 1950s, that were found to be caused by microbial activity. This led to the present investigation that was designed to determine if microorganisms were the causative agents of the blisters and determine if the problem could be prevented or minimized by controlling microbial activity.
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Corporate Authors:
Association of Asphalt Paving Technologists (AAPT)
400 Selby Avenue, Suite I
St Paul, MN United States 55102 -
Authors:
- Brown, L R
- Darnell, T R
- Conference:
- Publication Date: 1987
Language
- English
Media Info
- Features: References; Tables;
- Pagination: p. 361-380
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Serial:
- Volume: 56
Subject/Index Terms
- TRT Terms: Asphalt pavements; Biodeterioration; Bituminous overlays; Blistering; Deterioration; Microorganisms; Pavement cracking; Prevention
- Subject Areas: Design; Highways; Materials; Pavements; Security and Emergencies; I22: Design of Pavements, Railways and Guideways; I23: Properties of Road Surfaces; I31: Bituminous Binders and Materials;
Filing Info
- Accession Number: 00739802
- Record Type: Publication
- Files: TRIS
- Created Date: Aug 28 1997 12:00AM