Pervious Pavements: Installation, Operations and Strength. Part 2: Porous Asphalt.

Accession Number

PB2012-111352

Publication Date

Aug 2011

Media Count

95p

Personal Author

E. Stuart I. Uju M. Chopra M. Hardin M. Wanielista

Abstract

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 are designed to have enhanced pore sizes in the surface layer compared to conventional pavement types, encouraging flow of water through the material. The advantages include reducing the volume of surface runoff; reduced need for stormwater infrastructure, less land acquisition for stormwater ponds, improved road safety by reduced surface ponding and glare, and a reduced urban heat island effect. This research project investigated the infiltration rates, rejuvenation techniques, sustainable storage of the components and complete systems, water quality, and the strength properties of porous asphalt pavements. The work was conducted at the field labs of the Stormwater Management Academy at UCF. Porous asphalt section showed noticeable amount of raveling at the surface under day-to-day loads after installation. The asphaltic binder never seemed to set up especially during the high temperatures causing the sediments on the surface to stick to the asphalt. Compared to other sections, there was noticeable ponding and runoff from porous asphalt sections even under low intensity short duration events. This pavement type also experienced the highest decline of infiltration rate under sediment loading and it was not possible to improve the infiltration rates using vacuuming. This system is not recommended as an effective pervious system, particularly for the mix design used at our research facility and under the high temperature climates like Florida.

Keywords

Asphalt pavements
Best management practice
Binders
Infiltration
Porosity
Safety
Sediments
Storm water runoff
Strength
Surface roads
Sweeping
Urban areas
Vacuuming
Water quality


$48.00-COLOR DOCUMENT

Source Agency

Federal Highway Administration

NTIS Subject Category

50A - Highway Engineering
68D - Water Pollution & Control

Corporate Author

University of Central Florida, Orlando. Stormwater Management Academy.

Document Type

Technical report

Title Note

N/A

NTIS Issue Number

1219

Contract Number

N/A

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