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.
Role of Stabilized and Drainable Bases in Early-Age Cracking on Concrete Airfield Pavements
Transportation Research Record: Journal of the Transportation Research Board
Transportation Research Record: Journal of the Transportation Research Board ; 2004 , 1 ; 150-162
2007-01-01
Article (Journal)
Electronic Resource
English
Role of Stabilized and Drainable Bases in Early-Age Cracking on Concrete Airfield Pavements
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