A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Cost-Effectiveness of Geotextiles: Review of Performance in Alaskan Roads (Revised)
The Alaska Department of Transportation and Public Facilities installed over four million square yards of geotextiles in road embankments between 1978 and 1989. The report describes the results of a project to study the effectiveness of these installations at improving road performance. Northern Region design staff initiated the project because they were concerned with the adequacy of design theory and saw a need for field verification under Alaskan conditions. Work included research of project records, field installation location and inspection, mapping of pavement cracks and patches, determination of thermal crack spacing, survey and excavations of installations, and interviews with construction and maintenance personnel. The report concludes that while designers correctly identified problem areas of roadways for treatment, the geotextile installations have generally been ineffective in reducing long-term roadway distress. Most installations have incorporated one or two layers of relatively low-strength fabric; site-specific designs using more and stronger materials are likely to be of more benefit. A lack of adequate control sections and the short life to date of most installations made the evaluation difficult. Continued observation of some sites, especially some more recent ones built with more scientific controls and design methods, is recommended.
Cost-Effectiveness of Geotextiles: Review of Performance in Alaskan Roads (Revised)
The Alaska Department of Transportation and Public Facilities installed over four million square yards of geotextiles in road embankments between 1978 and 1989. The report describes the results of a project to study the effectiveness of these installations at improving road performance. Northern Region design staff initiated the project because they were concerned with the adequacy of design theory and saw a need for field verification under Alaskan conditions. Work included research of project records, field installation location and inspection, mapping of pavement cracks and patches, determination of thermal crack spacing, survey and excavations of installations, and interviews with construction and maintenance personnel. The report concludes that while designers correctly identified problem areas of roadways for treatment, the geotextile installations have generally been ineffective in reducing long-term roadway distress. Most installations have incorporated one or two layers of relatively low-strength fabric; site-specific designs using more and stronger materials are likely to be of more benefit. A lack of adequate control sections and the short life to date of most installations made the evaluation difficult. Continued observation of some sites, especially some more recent ones built with more scientific controls and design methods, is recommended.
Cost-Effectiveness of Geotextiles: Review of Performance in Alaskan Roads (Revised)
M. Reckard (author)
1991
57 pages
Report
No indication
English
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