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Bugs in the cracks.


Bugs in the cracks

Bacteria appear to play an important role in the breakdown of pavement made from asphalt, according to according to
prep.
1. As stated or indicated by; on the authority of: according to historians.

2. In keeping with: according to instructions.

3.
 a report released by the Federal Highway Administration The Federal Highway Administration (FHWA) is a division of the United States Department of Transportation that specializes in highway transportation. The agency's major activities are grouped into two "programs," The Federal-aid Highway Program and the Federal Lands Highway . The culprits are usually bacteria that belong to the genus Pseudomonas, says K. Ramamurti, who conducted the study for the Kansas Department of Transportation The Kansas Department of Transportation (KDOT) is a state government organization in charge of maintaining public roadways of the U.S. state of Kansas. External links
  • Official website
 in Topeka. The bacteria migrate from the soil into moisture-laden cracks, where they feed on the hydrocarbon-rich asphalt. The result is the gradual deterioration of the pavement into rubble. As the practice of recycling asphalt for road use increases, engineers may have to start paying attention to the deleterious effects of microbial microbial

pertaining to or emanating from a microbe.


microbial digestion
the breakdown of organic material, especially feedstuffs, by microbial organisms.
 attack on the strength and life span of recycled asphalt.
COPYRIGHT 1988 Science Service, Inc.
No portion of this article can be reproduced without the express written permission from the copyright holder.
Copyright 1988, Gale Group. All rights reserved. Gale Group is a Thomson Corporation Company.

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Title Annotation:role of bacteria in breakdown of asphalt pavement
Publication:Science News
Date:Apr 30, 1988
Words:115
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