Performance of Concrete Incorporating Latrobe Valley Brown Coal Ash


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Title: Performance of Concrete Incorporating Latrobe Valley Brown Coal Ash


Publication: CIA



Appears on pages(s):


Date: 2/13/2011

Power stations in the Latrobe Valley generate electricity by firing a lignite coal commonly referred to as brown coal. Approximately 600 000 tonnes of Latrobe Valley brown coal Ash (LVA) is produced each year. Currently, LVA is not being exploited in any significant quantities in engineering applications. In this paper, a brief discussion will be provided on the composition and characteristics of LVA from Loy Yang power generating station. Research at CSIRO has shown that Loy Yang ash (LY) can be a potentially effective supplementary material for use in the formulation of blended cements for concrete. Structural Grade concretes up to 40 MPa can be produced with significant amounts of LY in the binder. Both mechanical and durability properties in concrete mixes produced with ternary binders containing 20% LY were either comparable to or superior to that of concrete produced with Type GP cement of similar strength Grade. The concrete mixes containing ternary LY blends typically show relatively high early strength followed by sustained strength development under standard conditions.

Concrete Institute of Australia, International Partner Access.

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