HYDRAULIC CONDUCTIVITY OF POROUS ASPHALT

The hydraulic conductivity of porous asphalt is related to the interconnected voids within the surfacing and it is this property that markedly influences other aspects of performance of the material. The factors which control hydraulic conductivity are discussed and the current development within the European Specifications and Test Procedures are discussed. The major problem with porous asphalt is to prevent the clogging of the pores, which reduces the hydraulic conductivity. The cleaning of porous asphalt is seen as a short-term, partial remedy for clogging which may be used in certain circumstances. Evidence from various countries is presented and it is concluded that the design of the material should focus on providing voids as large as practicable, taking into account factors such as durability. (A) For the covering abstract see IRRD 890329.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/8492074167
• Corporate Authors:

  MINISTERIO DE FOMENTO, DIRECCION GENERAL DE CARRETERAS

  MADRID,   Spain 
• Authors:
  • COLWILL, D M
• Conference:
  • EUROPEAN CONFERENCE ON POROUS ASPHALT, MADRID, MARCH 12-14 1997. PAPERS. VOLUME I
• Publication Date: 1997

Language

• Undetermined

Media Info

• Features: References;
• Pagination: p. 563-83

Subject/Index Terms

• TRT Terms: Aging (Materials); Asphalt; Conferences; Drainage; Hydraulic properties; Maintenance; Porosity; Porous materials; Standards
• ITRD Terms: 5292: Ageing; 8525: Conference; 2937: Drainage; 4748: Hydraulic properties; 3847: Maintenance; 5938: Porosity; 4946: Porous asphalt; 187: Specification (standard)
• Subject Areas: Hydraulics and Hydrology; Maintenance and Preservation;

Filing Info

• Accession Number: 00740164
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• ISBN: 84-920741-6-7
• Files: ITRD, ATRI
• Created Date: Sep 26 1997 12:00AM