Resources

These notes provide guidance for the engineer to aid in their decision to reject or accept a material proposed for use a basecourse or sub-bases used on state highways and other roadways constructed in accordance with TNZ B/3 performance based specif…

The NZTA B10 Specification for Hi-Lab design, production and construction (version 1) and Notes (version 1) has been developed and published.

Specification and guidance notes for the supply of aggregate by weight.

Guidance notes provided as there is no standard TNZ M/3 Specification for sub-base aggregate.

This specification and guidance notes sets out design, maintenance and performance requirements of the surfacing and unbound flexible pavement layers for the construction of new pavements and re-construction of existing pavements.

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

This specification and guidance notes set out the material and construction requirements for geotextiles for use as separation and/or filtration applications in highway earthworks and pavements.

This method can be used to provide a simple quality control test to determine the permeability of a fabric.

This specification and guidance notes apply to the construction of subsoil drains which consist of geotextile lined trenches filled with drainage aggregate.

This specification and guidance notes refer to the use of perforated corrugated plastic pipe of up to 110 mm nominal outside diameter in subsoil drains under light duty conditions, eg for use in agricultural land, playing fields and lightly loaded or…