Wednesday, 7 November 2018
Austroads has published a new test method that describes the methods for determining the flexural modulus, strength and fatigue characteristics of laboratory‑manufactured cemented materials using four point bending techniques.
More than 90% of the Australian and New Zealand sealed road network consists of a sprayed seal overlying granular pavements.
Increased traffic loadings are placing increasing pressure on these pavements, with some non-standard materials no longer being fit-for-purpose.
In many rural areas, the use of high quality crushed rock is not a cost-effective treatment to improve the structure of these pavements.
Consequently there is increasing use of treatments that enhance the existing non-standard materials by adding cementitious and bituminous binders to allow recycling of scarce resources.
Test methods provide a consistent approach to materials testing and detail the scope, equipment, procedures, calculations and reporting requirements to enable a test to be performed.