Macro and Microtexture Evaluation of an Urban Road

The surface course of a flexible pavement must be stable and provide a safe and comfortable ride for its users. The adherence between the vehicle tires and the pavement surface is of great relevance for user’s safety. This interaction is controlled by the macro and micro texture of the surface. Several research studies confirm the relation between surface texture and surface friction, and their influence on the skid resistance against aquaplaning under wet conditions and critical speeds. One of the most busy roads of Brasilia (capital of Brazil), the L3 avenue, was recently duplicated. A dense concrete asphalt layer was constructed using the most common mineral aggregate applied in pavement services in Brasilia (limestone). This kind of aggregate becomes easily polished and projects using dense mixtures generally produce deficient pavement surfaces in terms of macro and micro texture. This paper presents the results of a survey about the macro and micro texture of the recently built L3 pavement, based on sand patch and British pendulum tests.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/9780874141597
• Corporate Authors:

  University of Iowa, Iowa City

  Department of Civil and Environmental Engineering
  Iowa City, IA  United States  52242
• Authors:
  • de Aguiar, Charles Silva
  • Falcao, Paulo Roberto Farias
  • de Castro, Li Chong Lee Barcelar
  • de Farias, Marcio Muniz
• Conference:
  • Fifth International Conference on Maintenance and Rehabilitation of Pavements and Technological Control (MAIREPAV5)
  • Location: Park City UT
  • Date: 2007-8-8 to 2007-8-10
• Publication Date: 2007

Language

• English

Media Info

• Media Type: Print
• Features: Figures; References; Tables;
• Pagination: pp 331-336
• Monograph Title: International Conference on Maintenance and Rehabilitation of Pavements and Technological Control (MAIREPAV5), Fifth Proceedings

Subject/Index Terms

• TRT Terms: Flexible pavements; Macrotexture; Microtexture; Pavement performance; Pendulum tests; Surface course (Pavements); Urban highways
• Uncontrolled Terms: Sand patch method
• Subject Areas: Highways; Pavements; I22: Design of Pavements, Railways and Guideways; I23: Properties of Road Surfaces;

Filing Info

• Accession Number: 01130033
• Record Type: Publication
• ISBN: 9780874141597
• Files: TRIS
• Created Date: Jun 17 2009 12:07PM