Life-Cycle Cost Analysis of Thin Whitetopping

摘要: This report summarizes experiences with thin whitetopping (TWT) in the state of Colorado and provides a model for an economic analysis that justifies selecting TWT pavement rehabilitation strategy. Whitetopping is concrete paving process where new placed over existing asphalt pavement. The bonds to asphalt, resulting composite Properties both materials are measured or estimated design. Whereas typical no thinner than 203 mm (8 in.) Colorado, typically place at 152 (6 thickness because it derives some support from layer. began experimenting 1990. From 1990 2003, Department Transportation has 627,095 m(squared) (750,000 yd(squared)) on 15 different roadways. In 2004, another project 81,940 (98,000 was placed. life-cycle cost used Colorado.