Laboratory Evaluations of Long-Term Hydraulic Performance and Maintenance Requirements for Pervious Concrete Mixes: A Case Study in Southern Brazil

Widespread adoption and acceptance of pervious concrete systems in new areas using local materials and equipment are dependent on having information on the efficacy of the mix and their longterm needs for rehabilitation. In Porto Alegre, Brazil recent governmental mandates include incorporating permeable pavements into projects. This study expanded on research into the effectiveness of using readily available aggregate for adequate hydraulic performance and clogging resistance of pervious concrete to also determine the effectiveness of maintenance procedures. Laboratory specimens from three mixes with differently screened aggregate were cast and infiltration rates evaluated initially, post clogging, after sweeping and after powerwashing. The results indicate that all three mixes maintain similar hydraulic functionality after rehabilitation, and that powerwashing is more effective in rejuvenating infiltration capabilities than sweeping. In addition, it is recommended to perform infiltration testing twice after maintenance, as there is a slower rate measured on the second test, probably due to dislodged debris re-entering the system during the first test. Similar laboratory methodologies for mix design and maintenance evaluation might effect a faster and more efficient incorporation of this sustainable low impact development technology in other regions.

• Record URL:
  https://doi.org/10.1061/9780784479926.029
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/9780784479926
• Supplemental Notes:
  • © 2016 American Society of Civil Engineers.
• Corporate Authors:

  American Society of Civil Engineers

  1801 Alexander Bell Drive
  Reston, VA  United States  20191-4400
• Authors:
  • Haselbach, Liv
  • Dutra, Vanessa Fátima Pasa
  • Schwetz, Paulete
  • da Silva Filho, Luiz Carlos Pinto
• Conference:
  • 2016 International Conference on Transportation and Development
  • Location: Houston Texas, United States
  • Date: 2016-6-26 to 2016-6-29
• Publication Date: 2016

Language

• English

Media Info

• Media Type: Web
• Features: References;
• Pagination: pp 309-317
• Monograph Title: International Conference on Transportation and Development 2016: Projects and Practices for Prosperity

Subject/Index Terms

• TRT Terms: Admixtures; Hydraulic properties; Infiltration; Laboratory tests; Maintenance practices; Mix design; Permeability; Sustainable transportation; Washing
• Geographic Terms: Porto Alegre (Brazil)
• Subject Areas: Highways; Hydraulics and Hydrology; Maintenance and Preservation; Materials;

Filing Info

• Accession Number: 01606108
• Record Type: Publication
• ISBN: 9780784479926
• Files: TRIS, ASCE
• Created Date: Jun 20 2016 3:03PM