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Science and Tecnology of Materials
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Inicio Science and Tecnology of Materials Eco-concrete with incorporation of blast furnace slag as natural aggregates repl...
Journal Information
Vol. 30. Num. 3.September - December 2018
Pages 131-188
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Vol. 30. Num. 3.September - December 2018
Pages 131-188
Original article
DOI: 10.1016/j.stmat.2017.12.001
Eco-concrete with incorporation of blast furnace slag as natural aggregates replacement
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M. Senania, N. Ferhouneb,
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ferhoune.noureddine@gmail.com

Corresponding author.
, A. Guettalaa, J.B. Aguiarc
a University of Mohamed Khider, Biskra 07000, Algeria
b University of larbi ben m’hidi, Oum el bouaghi 04000, Algeria
c University of Minho, Guimarães 4704-553, Portugal
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Tables (8)
Table 1. Chemical and mineralogical compositions of the cement.
Table 2. Physical properties of the cement.
Table 3. Physical properties of the sands.
Table 4. Chemical compositions (%) of the different sands and filler.
Table 5. Physical properties of the coarse aggregates.
Table 6. Physical properties of the filler slag.
Table 7. Technical characteristics of the super plasticizer.
Table 8. Mix proportions and workability of the concretes.
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Abstract

This study focused on studying the possibility of using concrete with incorporation of slag from blast furnace in the filling of short steel columns. The natural sand was totally or partially replaced by the sand slag in the composition of the concrete. The characterization of these concretes was made based on their physical properties (apparent and specific densities, porosity and fineness modulus), mechanical properties (compressive and tensile strengths) and the microstructure analysis by scanning electron microscopy (SEM). The comparison with the conventional concrete was made. The experimental results show that the percentages of sand slag on the concrete composition have an important effect on the enhancement of the mechanical proprieties. The comparison of the different determined characteristics shows the benefits of the use of sand slag in the concrete composition compared with the conventional concrete.

Keywords:
Slag filler
Concrete
Microstructure
Physical performance
Mechanical performance

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