Advances in Civil Engineering · 2011 · 14 citations · 3 references
EngineeringCivil EngineeringGeotechnical EngineeringGround ImprovementPavement EngineeringGeosynthetics In Ground ImprovementPavement ConstructionPavement DesignPavement GeotechnicsPavement MaterialsPavement Performance AnalysisAsphalt Pavement ConstructionBase Course ConstructionBase Course DesignField ObservationsGround Improvement For PavementsMoisture ContentPavement Base ConstructionReclaimed Asphalt Pavement
The use of Reclaimed Asphalt Pavement (RAP) in lieu of virgin crushed stone aggregate is becoming a widely accepted practice for a number of construction applications, particularly pavement base courses. A number of laboratory RAP studies have considered the mechanical properties of RAP bases in order to support pavement designs incorporating RAP. These studies have revealed a number of interesting relationships between RAP moisture content, compaction, and stiffness. This paper discusses the experiences of a design-build contractor integrating a geosynthetic ground improvement program with a RAP base during the reconstruction of a 1.95 ha asphalt parking lot. Field observations of base course construction with RAP explore some of the implications of laboratory findings. A number of interesting observations on the technical, construction, and economic issues resulting from the project challenges and the use of RAP are presented.
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