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Specifications

Construction of unbound granular pavement layers (B2)

Published: 2005

This specification and guidance notes shall apply to the construction of unbound granular pavement layers. The term pavement layer applies to any layer using sub-base or basecourse aggregates.


In-situ stabilisation of modified pavement layers (B5)

Published: 2008

This specification applies to the in-situ stabilisation of granular pavement layers using cement, lime, bitumen emulsion or foamed bitumen. This specification also applies to the stabilisation of sub-base or base layers to produce a modified material.


Pilot specification for in-situ subgrade stabilisation (B9)

Published: 2020

This specification shall apply to the in-situ stabilisation of subgrade layers comprising either natural in situ soils, imported fill materials or a combination of both using cement, lime or a combination of these.


Supply of aggregate by weight (G2)

Published: 1981

Specification and guidance notes for the supply of aggregate by weight. These conditions apply when the supply of aggregate is a separate contract item and the quantity for payment purposes is specified as the loose volume in delivery trucks.


Quality assurance level contracts (Q3/Q4)

Published: 1995

Q/3 normal QA level contract specification covers the quality assurance requirements for contracts which have been assessed at the normal quality assurance level. Q/4 high QA level contract covers the quality assurance requirements for contracts which have been assessed at the high quality assurance level. Both specifications should be applied to all contracts on state highways which involve road construction, road maintenance and structures. The guideline notes covers the roles of the client, consultant and contractor in the application of quality assurance provisions in roading contracts.


Benkelman beam deflection measurements (T1)

Published: 1977

This test procedure covers the determination of the rebound deflection of a pavement under a standard wheel load and tyre pressure, with or without temperature measurements.


Procedures for design and indirect tensile strength testing of modified and bound pavement materials (T19)

T19 specification sets out procedures for determining an optimised blend of aggregate and binders for the stabilisation of pavements.


Pavement specification guidelines for cycling routes

Published: 2019

Guidelines for pavement specifications for primary cycling routes including cycle lanes and cycle paths, shared paths and separated cycleways, as well as pavement shoulders where cycling demand is high and where a high level of service is desired. For a secondary or minor route in a cycling network, a lower level specification may be appropriate.


Ethylene glycol accelerated weathering test

Published: 2019

This ethylene glycol accelerated weathering test method (NZTA T20) has been developed to assess the durability of aggregates for pavement construction.

It is based on elements of NZS 4407 Test 3.10 (The Crushing Resistance of Coarse Aggregate under a Specified Load) and AS 1141.22 (Methods for sampling and testing aggregates - Wet/Dry strength variation).

The method also uses laboratory equipment and methods described in other parts of NZS 4407 so users are advised to read this method in conjunction with NZS 4407.


Manuals

NZ guide to pavement structural design

This version of the New Zealand guide to pavement structural design is to be used for the design of new pavements.

For rehabilitation refer to the New Zealand guide to pavement evaluation and treatment.

This guide replaces the NZ supplement to the 2004 Austroads pavement design guide.


NZ guide to pavement evaluation and treatment design

The 2017 New Zealand guide to pavement evaluation and treatment design provides guidance for investigating, testing, designing and constructing pavement rehabilitation treatments in New Zealand.

This guide replaces the NZ supplement to the 1999 Austroads pavement design guide.


NZ supplement to the 2004 Austroads pavement design guide

Published: 2007

This version of the New Zealand supplement to 2004 Austroads pavement design guide is to be used for the design of new pavements. For rehabilitation refer to the 1999 version.

This guide is now superseded by the 2017 NZ guide to pavement structural design.


NZ supplement to the 1999 Austroads pavement design guide

Published: 2000

This version of the New Zealand supplement to 1999 Austroads pavement design guide is to be used for the design of pavement rehabilitation treatments. For new construction refer to the 2004 version.

This guide is now superseded by the 2017 NZ guide to pavement evaluation and treatment design.


Technical memoranda

Roughness requirements for finished pavement construction (TM7003)

Published: 2006

Guidelines for the roughness requirements for finished pavement construction.

 

For further information contact pavements@nzta.govt.nz. 


Other pavement related topics