Developments in Australian RCC

Paper by PETRIE MATHEWS from ISCR 6th 1990

Australia has now over three years of experience in the use of high strength RCC in pavements with over 40 projects completed. Whilst the majority of Australian projects have been relatively small in comparison to American and European experience, nevertheless they have enabled a continued development of design, construction and testing techniques. Mix design has become more refined with binders including cement, flyash, ground granulated blast furnace slag and condensed silica fume. Pavement jointing systems comprising sealed, saw cut joints have become standard practice with joint spacing being reduced to around 6 to 8 metres to allow pavement thickness design based on load transfer. Testing methods have become more consistent with early age compressive testing of oven cured RCC cylinders being a typical field quality control technique.

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