COVID-19 SERVICES UPDATE: Information for all alert levels, Waka Kotahi services and more

SCAM ALERTS: Refund email and Vehicle licence (rego) renewal phishing emails

ONLINE SERVICES: We currently have an issue with receiving some payments and are working to resolve this issue as quickly as possible. We apologise for any inconvenience.

EASTER WEEKEND – PLAN AHEAD: Heading away for the long weekend? Check our holiday journeys tool(external link)

Resources

Back to Resources

Sub-base aggregate

Published: | Category: Construction , Pavement & surfacing , Specifications | Audiences: Road controlling authorities, Road traffic engineers & consultants

Guidance notes provided as there is no standard TNZ M/3 Specification for sub-base aggregate. The variety of satisfactory materials is too wide to set a rational standard specification and custom written specifications must be used that match the design of each individual project. These notes set out the recommended format of the sub-base specification and minimum requirements.

Publication details

  • Author:
  • Published: 1986
  • Reference: TNZ M/03
  • Also known as: M/3