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Revista IBRACON de Estruturas e Materiais

On-line version ISSN 1983-4195

Rev. IBRACON Estrut. Mater. vol.1 no.1 São Paulo Mar. 2008

https://doi.org/10.1590/S1983-41952008000100003 

Variability of the bond and mechanical properties of self-compacting concrete

 

 

F. M. Almeida filhoI; B. E. BarragánII; J. R. CasasIII; A. L. H. C. El DebsIV

IDepartamento de Engenharia de Estruturas, Escola de Engenharia de São Carlos/USP, ffilho@sc.usp.br, 13566-590, São Carlos, Brasil
IIDepartamento de Ingeniería de la Construcción, ETSECCPB-UPC/Barcelona, bryan.barragan@upc.edu, Barcelona, Espanha
IIIDepartamento de Ingeniería de la Construcción, ETSECCPB-UPC/Barcelona, joan.ramon.casas@upc.edu, Barcelona, Espanha
IVDepartamento de Engenharia de Estruturas, Escola de Engenharia de São Carlos/USP, analucia@sc.usp.br, 13566-590, São Carlos, Brasil

 

 


ABSTRACT

This main objective of this research is to evaluate the variability of the mechanical properties (compressive strength, modulus of elasticity and tensile strength) and bond strength of the self-compacting concrete (SCC), with 50 MPa compressive strength at 28 days, varying the maximum aggregate size and the SCC fluidity. The tests were made in 15 x 30 cm concrete cylinders and in beams standardized by Rilem-Ceb-Fib (1973). In agreement with the obtained results, can be concluded that the variability of the self-compacting concrete is small for the modulus of elasticity and for the compressive strength, but the tensile strength presented a significant variability due to the failure mode. About the bond strength, the variability was small showing that the self-compacting concrete is reliable and possesses great potential for use in the civil construction.

Keywords: Self-compacting concrete, variability, hardened state, steel-concrete bond, beams, statistical analysis.


 

 

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