The Nottingham Asphalt Tester (NAT) is equipment used for rapid determination of modulus, permanent deformation and fatigue of bituminous mixtures. It uses cylindrical specimens that are cored from the highway or prepared in laboratory.

These mechanical properties are essential to people involved in the production of roads and the development of materials used in road construction. NATs are used across the world by materials testing laboratories, universities, oil companies, regional laboratories, contractors and consulting engineers.

The NAT was invented in the 1980s at the University of Nottingham by Keith Cooper, who later founded Cooper Research Technology Ltd.[1][2][3]

References

  1. ↑ Porter, John (2002). The Motorway Achievement: Frontiers of Knowledge and Practice, Volume 2. Thomas Telford. p. 284. ISBN 9780727731975.
  2. ↑ King, Nick. "emda grant puts Cooper Research Technology on the road to growth". East Midlands Development Association. Archived from the original on 20 March 2012. Retrieved 13 July 2011.
  3. ↑ Lincolnshire County, Council. "Nottingham Asphalt Tester". LCC. Archived from the original on 10 December 2019. Retrieved 13 June 2011.


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