Evaluation of cement and fly ash treated recycled asphalt pavement and aggregates for base construction : research project capsule

794457895Research project capsule.PDFTech ReportBase course (Pavements)Pavement layersAsphalt pavementsCementFly ashWaste productsAggregatesLouisianaLouisiana Transportation Research CenterRupnow, TysonLouisiana Transportation Research CenterLouisiana. Dept. of Transportation and DevelopmentLouisiana State University (Baton Rouge, La.)NTL-HIGHWAY/ROAD TRANSPORTATION-MaterialsNTL-HIGHWAY/ROAD TRANSPORTATION-Soils and GeologyNTL-HIGHWAY/ROAD TRANSPORTATION-Construction and MaintenanceUS Transportation CollectionINTRODUCTION: Many entities currently use recycled asphalt pavement (RAP) and other aggregates as base material, temporary haul roads, and in hot mix asphalt construction. Several states allow the use of RAP combined with cement for stabilized base course under both asphalt and concrete pavements. There is disagreement on how and what properties to test for cement treated RAP (CTRAP) for both asphalt and concrete pavement structures. This project will give the state agency the information needed to properly evaluate CTRAP and other aggregates. OBJECTIVE: The objective of this project is to determine the feasibility of CTRAP, fly ash treated RAP (FTRAP), and cement and fly ash treated aggregates as a structural layer for both Portland cement concrete and hot mix asphalt pavements systems