ABSTRACT
Pervious pavements are generally weak in material strength and can be easily clogged. Thus, they were only used in sidewalks, squares, and parking lots, but not for vehicular loads. An innovative eco-technology recently developed in Taiwan uses air-circulated aqueduct frames and impervious Portland cement concrete on top of an aggregate (crushed stone or gravel base) layer to form a structured permeable concrete pavement (called JW eco-technology pavement) can alleviate such problems. The main features include: (1) The aggregate layer may serve as a detention reservoir to increase flood control capabilities; (2) The stored water may lower pavement surface temperature in summer and help to reduce heat island effects; (3) This eco-technology can prevent water accumulation on pavement surface to improve pedestrian and driving safety; and (4) Enriching the ecological system. Through proper designs, the structured JW pavement can possess adequate load bearing capacities as conventional concrete pavements do.
