Pervious Pavements: Installation, Operations and Strength. Part 3: Permeable Paver Systems.

摘要

Pervious pavement systems are now being recognized as a best management practice by the Environmental Protection Agency and the state of Florida. The pervious pavement systems is designed to have enhanced pore sizes in the surface layer compared to conventional pavement types, encouraging flow of water through the material. This research project investigated the infiltration rates, rejuvenation techniques, sustainable storage of the components and complete systems, water quality, and the strength properties of pervious concrete pavements. The work was conducted at the field labs of the Stormwater Management Academy at UCF. The study of permeable interlocking concrete pavement systems (pavers) by Oldcastle showed that they perform as intended, even in a worst-case scenario of excessive sediment loading conditions and high ground water table levels. Maintenance by the use of a vacuum sweeper truck improved the infiltration rate and works best when the surface is wet for all sediment types, especially fine-grained cohesive sediments such as the crushed limerock fines. Under normal sediment loading conditions it is expected that the Oldcastle paver systems will perform well above 2 in/hr. The amount of sustainable storage in the entire cross section of the permeable paver systems is about 20%.