Back to Resources

Ethylene glycol accelerated weathering test

Published: | Category: Construction , Pavement & surfacing , Specifications | Audiences: General, Road traffic engineers & consultants, Roading contractors

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.

Keywords: ethylene gylcol, aggregate durability

Publication details

  • Author:
  • Published: 10 June 2020
  • Version: 2.0
  • Also known as: NZTA T20