Back to Resources

P25 Pilot specification for calcined bauxite

Published: | Category: Skid resistance & texture , Surfacing , Specifications | Audience: Roading contractors

The NZ Transport Agency has released a pilot version of the P25 Specification for calcined bauxite for trial and comment.

This is a performance-based specification for calcined bauxite applied with non-bituminous binder on an appropriate substrate. The expectation is that the surfacing (including the substrate) will have a life of 6 to 8 years with zero or minimal maintenance.

This specification applies where the substrate is provided by the principal or the contractor.

Publication details

  • Author:
  • Published: February 2012
  • Reference: NZTA P25
  • Version: P25:2011