Characterisation of Australian and New Zealand Fly Ashes for Concrete Manufacture
The chemical and physical properties of nine different Australian and New Zealand fly ashes were determined in order to relate them to the pozzolanic properties of the ashes (with a view to utilization as a cement additive in the manufacture of concrete). It was found that, while the ashes produced from bituminous and subbituminous coal were generally acceptable as a pozzolanic source, two of three tested ashes produced from brown coal did not meet the required standards. Some ashes, in particular the Loy Yang ash, were found with some additional treatment to be potential pozzolanic additives.
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