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HEDRA alert to geotechnical and civil engineers

Recently, I have had an opportunity to compare the Shrink/Swell test (S/S) with the Conditioned Core Shrink test (CCS) as part of my PhD. While doing so an improved test method was devised with the help from the Swinburne University soil laboratory and JM Field work. 

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Soil moisture differences

There is a distinct difference in soil moisture in the far Western suburbs of the capital cities along the east coast. This occurred during the recent El Nino and will probably cause new slab deflections once the rains take effect (Hedra Notice Board, April 2016).