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Repeated Loading of Stabilized Recycled Aggregate Base Course

by Khaled Sobhan, Bucknell University, Lewisburg, PA 17837, United States,
Raymond J. Krizek, Bucknell University, Lewisburg, PA 17837, United States,



Document Type: Proceeding Paper

Part of: Recycled Materials in Geotechnical Applications

Abstract:

The fatigue behavior, resilient properties, and progressive accumulation of damage due to repeated flexural loads on a fiber-reinforced pavement base course material composed of cement-stabilized recycled concrete aggregate and fly ash were studied. Unreinforced material had a fatigue strength comparable to virtually all typical stabilized highway materials. The degradation of the dynamic elastic modulus due to repeated loading was found to be less than 25% of the initial modulus. The resilient modulus in flexure for this material was found to be comparable to values reported for traditional soil-cements materials.

Subject Headings: Fiber reinforced composites | Base course | Recycling | Fiber reinforced concrete | Construction materials | Concrete pavements | Material failures

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