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Title	A MULTISCALE MODEL FOR EFFECTIVE MODULI OF CONCRETE INCORPORATING ITZ WATER-CEMENT RATIO GRADIENTS, AGGREGATE SIZE DISTRIBUTIONS, AND ENTRAPPED VOIDS
Accession No	00986464
Authors	Nadeau, J C
Journal Title	Cement and Concrete Research Vol. 33 No. 1
Corp. Authors / Publisher	Elsevier
Publication Date	20030100
Description	p. 103-113; Figures(9); References(32); Tables(3)
Languages	English
Abstract	Many factors affect the hardened properties of concrete, including water-cement ratio, aggregate size distribution, and voids. In this article, the authors describe their model, developed for the effective elastic properties of concrete, which is a function of the volume fractions, size distributions, and elastic properties of fine aggregate (FA) and coarse aggregate (FA) and entrapped voids. The model is also a function of the overall water-cement ratio and specific gravity of cement. The model explicitly depicts the water-cement ratio gradients through the interfacial transition zone (ITZ). The water-cement ratio gradients, in turn, affect the variation of the cement paste elastic properties through the ITZ, while maintaining the total fractions of cement and water consistent with the overall water-cement ratio. The model conserves the total volumes of cement and water, or their relative proportions, to maintain a specified overall water-cement ratio.
TRT Terms	Air voids ; Concrete ; Concrete aggregates ; Dynamic modulus of elasticity ; Elasticity (Mechanics) ; Fine aggregates ; Interfaces ; Mathematical models ; Microstructure ; Mortar ; Specific gravity ; Transition zone (Fluid mechanics) ; Water cement ratio
Subject Areas	H32 CEMENT AND CONCRETE; I32 Concrete
Availability	Elsevier Find a library where document is available Order Document: http://worldcat.org/issn/00088846
TRIS Files	HRIS
Database	TRIS Online

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