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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: Improved Serviceability of RC Slabs With the Use of High-Strength Concrete
Author(s): R. Favre, H. Charif, and J. P. Jaccoud
Publication: Special Publication
Appears on pages(s): 89-108
Keywords: concrete slabs; deformation; finite element method; silica fume; high-strength concretes; moment-curvature relationship; plasticizers; reinforced concrete; serviceability; structural analysis; tests; Structural Research
Abstract:The objective of this paper is to show that the use of high-strength concrete (HSC) (especially concrete with silica fume) can notably reduce the long-term deformations of reinforced concrete (RC) slabs. This may be achieved by reducing creep deformation, increasing the elastic modulus, the tensile strength, and the steel-concrete bond properties. Moreover, this paper shows that the CEB (Comite Euro-International du Beton) moment-curvature relationship established for ordinary concrete is still valid for HSC. A procedure for the nonlinear finite element analysis of RC beams and slabs is briefly described. The proposed procedure is based on the nonlinear CEB moment-curvature relationship incorporated into an iterative secant stiffness algorithm. Predicted deflections from the proposed procedure are compared with experimental results from slabs made with ordinary or HSC.
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