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Home > Publications > International Concrete Abstracts Portal
The International Concrete Abstracts Portal is an ACI led collaboration with leading technical organizations from within the international concrete industry and offers the most comprehensive collection of published concrete abstracts.
Title: Variability and Specification Requirements of Drying Shrinkage of Concrete
Author(s): A. Leshchinsky, J. Pattison and L. Dobkin
Publication: Special Publication
Appears on pages(s): 1271-1282
Keywords: Concretes; drying; shrinkage; variability.
Abstract:In hot climate countries drying shrinkage of concrete is one of the major characteristics influencing its durability. In Australia, the majority of project specifications for concrete with requirements on durability set up criteria for drying shrinkage. Incorrect specification of this characteristic affects concrete durability and/or increases costs of construction. The paper analyses different sources of drying shrinkage variability, namely, metrological, within-sample, batch-to-batch, day-to-day, etc. The variabiiity of drying shrinkage resuits is compared with that of compressive strength data. Project specification requirements in terms of frequency of testing and acceptance criteria of drying shrinkage are discussed. The authors provide recommendations on drying shrinkage for project specification requirements which (a) decrease the consumer’s risk from the stand point of guarantee of getting the specified drying shrinkage and (b) decrease the concrete producer’s risk in the case of non-compliance of concrete in terms of drying shrinkage.
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