Characterisation of Cementitiously Stabilised Pavement Materials

The Australian Experience

Autores

  • G. White University of New South Wales’ Australian Defence Force Academy campus, Canberra, Australia. Senior Pavement Engineer with consulting engineers Sinclair Knight Merz, Canberra, Australia.
  • C.T. (Rajah) Gnanendran School of Aerospace, Civil and Mechanical Engineering, University of New South Wales’ Australian Defence Force Academy campus, Canberra, Australia.

Palavras-chave:

Cementitious stabilisation, Indirect diametrical tensile test, Material characterisation

Resumo

Cementitious stabilisation of pavement materials has a long history of use in Australia and other countries. Since its first recorded attempts in the 1940s, stabilisation has been further developed and now a wide range of binder options exist. The Australian Accelerated Load Facility (ALF) program has allowed advancement of stabilisation material assessment in the field, whilst layered elastic analysis has allowed these materials to be directly considered in pavement thickness design. These circumstances have lead to the desire to improve the laboratory characterisation of these materials. Australian practice has moved towards the use of Indirect Diametrical Tensile testing for strength, modulus and fatigue life determination, using samples prepared by gyratory compaction methods. The development of generic relationships between strength, modulus and fatigue life, which are able to be customised to specific materials by a simple and timely test, are now being investigated.

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Publicado

2018-09-22

Edição

2005: Proceedings Seventh International Conference on the Bearing Capacity of Roads, Railways and Airfields

Seção

Articles