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Performance-based standards and specifications state the characteristics desired by users without regard to the specific means to be employed in producing the product. This concept is the basis of the new Australian standard for cement, AS 3972 Portland and Blended Cements. The new Australian standard for cement was published in 1991 as a performance-based specification. An overview of the major features of this standard is presented together with background information on its development and current implications. Work is continuing in some areas to establish additional performance tests and criteria. The paper also outlines the testing programs currently being undertaken by the cement industry in Australia to establish these additional tests and criteria.
Research engineer, Cement and Concrete Association of Australia, North Sydney, NSW
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