Resources

This note is to advise that the NZ Transport Agency (NZTA) Specification B/9P:2020, In-situ subgrade stabilisation, has been released for use on agreed pilot projects and is available for download from the Transport Agency’s website.

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

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

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.

This specification sets out the requirements for the supply, cartage and laying of maintenance aggregate for unsealed roads, including preparation of the surface prior to laying.

This specification and guidance notes set out the requirements and maintenance standard for the repair of potholes in unsealed roads.

The purpose of this note is to advise project managers that there has been an update to the Guide to assessing air quality impacts from state highway projects.

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…

This technical advice note outlines interim requirements for the use of mechanical reinforcement couplers and anchors, subsequent to the publication of the Bridge manual 3rd edition amendment 3.