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Search Results - Case Studies, September 2012

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Spent fluid cracking catalyst is produced at Mobil and Shell refineries.

Case Studies
Reuse of oil catalyst in cement manufacture

A joint Boral, Shell and Mobil project that used oil industry spent catalyst as a raw material replacement in cement has diverted 4000 tonnes per year of material from landfill, conserved virgin resources and provided cost savings. Brian McGrath reports. Read more »
The recycling and subsequent reuse of crushed rock and glass reduces the demand for virgin materials.

Case Studies
Blending of recycled glass and crushed rock in road pavements

An extensive laboratory testing program in Victoria, with assistance from recycled aggregates producer Alex Fraser Group, has enabled a team of researchers to analyse the suitability of a recycled glass-crushed rock blend as a sub-base material. Read more »
Various concrete pavement surfaces after polishing to AS1141.41.

Case Studies
Specifying manufactured sands for concrete applications

With the diminishing availability of natural sand resources in many regions around the world, quarry engineers and concrete technologists have taken up the challenge in improving the production and selection of quality man-made sands suitable for concrete production.  Read more »
 Field trial – Hanson Brandy Hill quarry.

Case Studies
Coal power station waste as a fine aggregate replacement in concrete

With sand resources likely to be depleted in the future, attention is turning to options for fine aggregate. Rishabh Satsangi discusses research into the use of coal bottom ash as a viable substitute for the application of sand in concrete manufacturing. Read more »
Coastwide Readymix Concrete’s new Warnervale concrete plant will provide product for the $150 million Warnervale Town Centre project.

Case Studies
Concrete batching plant underpins new development

A New South Wales Central Coast readymixed concrete plant is well positioned to take advantage of expected growth in the region and the development of the Warnervale Town Centre project. Read more »
Don Reed at Hassans Wall Lookout, the highest lookout in the Blue Mountains at 1100m above sea level.

Case Studies
Know your rock and travel: The Don Reed story

Don Reed is a well known figure in the quarrying industry. He has spent half of his career to date working for major companies and the other half as a consultant. Doug Prosser spoke to Don at length about his work in the extractive industry, which spans nearly 40 years and numerous continents. Read more »
The equipment and testing sequence shown in the improved MBV method.

Case Studies
New test method for assessing fine aggregate

Traditionally, good quality manufactured sand for use in concrete mixes has been achieved by measuring and chemically treating the deleterious clays within the fines. Leon Bablouzian, Nathan Tregger and Tasha Eagle outline a new test procedure for assessing clay contamination.
Read more »
Australia is very fortunate to have high quality black coal deposits readily available.

Case Studies
Developing high performance construction materials with coal combustion products

A by-product of the coal-fired power process, coal combustion products – CCPs – are an alternative for roadbase materials and concrete applications. Michael van Koeverden discusses the properties of CCPs and how they can be adapted to roadbase design. Read more »
Ostwald Bros bid for the project with the Caterpillar RM500 in mind because it could cost-effectively handle the work.

Case Studies
Rotary mixer goes to work on flood-damaged roads

Ostwald Bros is leading the way in restoring Queensland’s infrastructure, thanks to a RM500 reclaimer. Read more »


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