Role of Stabilized and Drainable Bases in Early-Age Cracking on Concrete Airfield Pavements
A strong body of emerging evidence shows that under certain circumstances concrete pavements constructed over certain types of bases have a higher risk of early-age, uncontrolled cracking. In some cases, this has resulted in the removal and replacement of up to 5% to 7% of the total number of slabs paved on a project—an expensive proposition for the stakeholders. An investigation of nearly two dozen airfield pavement sections in the United States identified several plausible factors that act either independently or in concert with other factors and lead to this phenomenon. This study attempted to explain the interaction between factors that trigger slab movements (triggers) and key design, material, and construction factors (variants) that aggravate the impact of these movements on early cracking risk. On the basis of this study, guidelines for design, materials selection, and construction of rigid pavements on stabilized and drainable bases were developed to mitigate the impact of various factors on the early-age cracking phenomenon. Revisions were suggested to the FAA’s specifications for lean concrete, cement-treated, and hot-mix asphalt bases. New specifications were developed for permeable bases that balance stability with drainability.
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- Summary URL:
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Availability:
- Find a library where document is available. Order URL: http://www.trb.org/Main/Public/Blurbs/159491.aspx
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Authors:
- Mallela, Jagannath
- Hall Jr, Jim W
- Smith, Kelly L
- Publication Date: 2007
Language
- English
Media Info
- Media Type: Print
- Features: Figures; Photos; References; Tables;
- Pagination: pp 150-162
- Monograph Title: Soil Mechanics 2007
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Serial:
- Transportation Research Record: Journal of the Transportation Research Board
- Issue Number: 2004
- Publisher: Transportation Research Board
- ISSN: 0361-1981
Subject/Index Terms
- TRT Terms: Airport runways; Base course (Pavements); Cracking of concrete pavements; Guidelines; Hot mix asphalt; Lean concrete; Pavement design; Pavement performance; Permeability; Rigid pavements; Specifications; Subsurface drainage
- Uncontrolled Terms: Cement treated bases
- Subject Areas: Aviation; Design; Geotechnology; Highways; Pavements; Terminals and Facilities; I22: Design of Pavements, Railways and Guideways; I42: Soil Mechanics;
Filing Info
- Accession Number: 01045154
- Record Type: Publication
- ISBN: 9780309104302
- Files: PRP, TRIS, TRB, ATRI
- Created Date: Mar 30 2007 7:01AM