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Open-graded porous asphalt

Published: | Category: Construction , Asphalt , Specifications | Audiences: Road traffic engineers & consultants, Roading contractors

This specification and guidance notes describe the required properties of open graded porous asphalt for use as a surfacing course for road pavements. This mix type is intended to be used as a surfacing where there is a requirement for texture depth, noise reduction and /or splash and spray suppression.

Related information
Research Report 626: The long-term acoustic performance of New Zealand standard porous asphalt

Publication details

  • Author:
  • Published: 2007
  • Reference: TNZ P/11
  • Conditions: Use is mandatory on state highways and recommended on other road controlling authority roads.
  • Also known as: P11