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You searched in: Surfacing


Category: Surfacing

A prioritisation scheme for the safety management of curves

Published: 2011
  • Also known as: Curve risk analysis
  • Author: Peter Cenek et al

This paper is for skid resistance practitioners to assist them with background to the T10 policy on curves.


Category: Surfacing

Durability test method for bitumen

Published: 14 Jan 2011
  • Also known as: T13; T/13
  • Author: NZ Transport Agency

Test method to assess the long-term field durability (resistance to oxidative hardening) of NZTA M1 penetration grade bitumens.

  • Also known as: P26
  • Reference: TNZ P/26
  • Author: Transit NZ

This specification and guidance notes set out requirements for improving the macrotexture (texture) of a pavement surface using high-pressure water or grooving treatments.


Category: Surfacing

P25 Pilot Specification for Calcined Bauxite

Published: Feb 2012
  • Reference: NZTA P25 Version: P25:2011
  • Author: NZ Transport Agency

The NZ Transport Agency has released a pilot version of the P25 Specification for Calcined Bauxite for trial and comment. We welcome your feedback.

This is a performance-based specification for calcined bauxite applied with non-bituminous binder on an appropriate substrate. The expectation is that...


Category: Surfacing

Roading bitumens

Published: 2011
  • Also known as: M/1; M1
  • Reference: TNZ M/01 TNZ M/01 Notes TNZ M/01 replacement
  • Author: NZ Transport Agency

This specification and guidance notes set out the physical characteristics required to be met by all bitumen used in New Zealand. All of the products supplied as grades listed in Table 1 require approval by the NZTA, which includes the approval of a quality assurance plan for the manufacture and supply of an M/1 approved bitumen. Although only 5 grades are listed in Table 1, to avoid presenting...


Category: Surfacing

Skid resistance investigation and treatment selection

Published: 10 Jul 2013
  • Also known as: T10, T/10
  • Reference: T10 Version: 2013
  • Author: NZ Transport Agency

This specification (2013) and guidance notes outline the process for identifying sites where treatment to improve skid resistance may be justified and the process to be followed. In addition, previous versions of the T10 specification (1997, 1998, 1999, 2002, 2010, 2012) and notes (1997, 1998, 1999, 2002 and 2012) are listed as historical references.

The 2013 specification includes...


Category: Surfacing

Texture by the sand circle method measurements

Published: 1981
  • Also known as: T/3; T3
  • Reference: TNZ T/03
  • Author: Transit NZ

This test procedure covers the determination of the average texture depth of a paved surface using sand to give the volume of voids. The method is suitable for the measurement of surfaces with average texture depths greater than 0.45 mm (less than 350 mm sand circle diameter).