Cements incorporating brown coal fly ash from the Latrobe Valley region of Victoria, Australia

Journal Article · Sat May 01 04:00:00 EDT 1993 · Cement and Concrete Research; (United States)

DOI:https://doi.org/10.1016/0008-8846(93)90001-P· OSTI ID:6540985

Macphee, D E; Taylor, A H ^[1]; Black, C J ^[2]

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1. CSIRO, Highett, Victoria (Australia)
2. State Electricity Commission, Richmond, Victoria (Australia)

The State Electricity Commission of Victoria generates about 85% of its electrical capacity from the combustion of brown coal mined from extensive coal reserves in the Latrobe Valley region, producing approximately 460,000 tons of solid waste annually. This is expected to rise to 550,000 tons per year by 1994. Approximately 80% (wt) of solid waste if fly ash. Black coal fly ashes have been extensively used as extenders for Portland cement, but brown coal ashes are traditionally less satisfactory in cement systems because of their lower hydraulicity and inferior contribution of the ash to the strength development of the matrix. The composition of Latrobe Valley coal and the distribution of ash-forming constituents in the coal result in the formation of a unique fly ash during combustion. The unusual composition and properties of the ash initiated the present study on the potential for using this material in cement and concretes. The work reported in this paper describes physical and chemical characteristics of Latrobe Valley fly ashes and discusses the formation of cement blends containing various amounts of fly ash and their properties. Preliminary results show moderate strength development in the products.

• OSTI ID: 6540985
• Journal Information: Cement and Concrete Research; (United States), Journal Name: Cement and Concrete Research; (United States) Vol. 23:3; ISSN CCNRAI; ISSN 0008-8846
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010800* -- Coal
Lignite
& Peat-- Waste Management
AEROSOL WASTES
ASHES
AUSTRALASIA
AUSTRALIA
BROWN COAL
BUILDING MATERIALS
CARBONACEOUS MATERIALS
CEMENTS
CHEMICAL COMPOSITION
CHEMICAL PROPERTIES
COAL
COMBUSTION PRODUCTS
DEVELOPED COUNTRIES
ENERGY SOURCES
FLY ASH
FOSSIL FUELS
FOSSIL-FUEL POWER PLANTS
FUELS
MATERIALS
MECHANICAL PROPERTIES
PHYSICAL PROPERTIES
POWER PLANTS
RESIDUES
THERMAL POWER PLANTS
VICTORIA
WASTE PRODUCT UTILIZATION
WASTES