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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: Concrete subjected to vibrations in early-ages
Author(s): Juliana Ferreira Fernandes, Túlio Nogueira Bittencourt, Paulo Helene
Appears on pages(s): 592 600
Keywords: mortar; concrete; rheology; slump test; yield stress.
Abstract:This study describes the early-age behavior of high-strength concrete made with high initial strength cement and exposed to an environment with vibrations. A sequence of tests is presented which includes the molding of concrete specimens subjected to traffic vibrations, as well as a mechanical characterization and steel-concrete bonding tests. Results indicated that early age concrete specimens subjected to vibrations undergo losses in tensile strength and in their modulus of elasticity. Such reduction in stiffness may have a negative impact on structural serviceability and result in higher deflections. Thus, a reduction in tensile strength should be taken into account when designing rigid floors, given that tensile strength is a key factor which guarantees the system’s durability. The effect of vibration on early-age concrete and its effects on properties which influence the structural behavior of the system are discussed.
Brazilian Institute of concrete, International Partner Access.
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