关键词: |
Asphalt pavement, Stormwater percolation, Porous pavement, Permeable pavement, Drainable pavement, Pervious structure, Open-graded pavement, Water infiltration, Stormwater runoff quality, Porous pavement specifications, Development, Specification, Construction, Asphalt material layers, Performance, Traffic loading |
摘要: |
Porous Pavement Structures (PPS) have many benefits, including reduced or eliminated runoff, filtering of runoff and regeneration of groundwater. These structures have been used successfully across the United States for several years. In addition to adequately draining storm-water, there are a number of criteria these structures need to meet. These include adequate structural continuity to resist deformation from traffic loading, adequate asphalt binder performance to resist breakdown from oxidation and adequate void capacity in the subsurface reservoir layer to hold drained runoff while infiltration into the ground occurs. CTDOT currently has no specification for the construction of PPS or the production of PPS stone and/or asphalt material layers. This research located and reviewed specifications in existence elsewhere, interviewed asphalt pavement producers, and developed a suitable PPS specification for CTDOT. Development of criteria for design, performance, site selection and use of appropriate materials for PPS is included in the study analysis. |