A Methodological Test to Study the Concrete Workability with the Fractal Model
The main parameters affecting the workability are the
water content, particle size, and the total surface of the grains, as long
as the mixing water begins by wetting the surface of the grains and
then fills the voids between the grains to form entrapped water, the
quantity of water remaining is called free water. The aim of this study is to undertake a fractal approach through
the relationship between the concrete formulation parameters and
workability. To develop this approach a series of concrete taken from
the literature was investigated by varying formulation parameters
such as G/S, the quantity of cement C and the quantity of water W. We also call another model as the model of water layer thickness
and model of paste layer thickness to judge their relevance, hence the
following results: the relevance of the water layer thickness model is
considered as a relevant when there is a variation in the water
quantity. The model of the paste layer thickness is only applicable if
we considered that the paste is made with the grain value Dmax =
2.85: value from which we see a stability of the model.
[1] Adam M. Neville, « Propriétés des bétons », Eyrolles, 2000, 824 pages. [2] Hans W. Reinhardt, Timo Wüstholz, “about the influence of the content
and composition of aggregates on the rheological behavior of selfcompacting
concrete”, Materials and Structures, 39, 683‐693, 2006.
[3] K. Chouicha, " La dimension fractale et l’étendue granulaire comme
paramètres d’identification des mélanges granulaires ", Materials and
Structures, 2006, 39, pp.665-681
[4] T. Sedran: Rhéologie et rhéomètrie des bétons. Application aux bétons
autonivelants, thèse de doctorat, LCPC, 1999.
[5] A. Lecomte, A. Thoomas," Caractère fractal des mélanges granulaires
pour bétons de haute compacité ", Materials and Structures, 1992, 25,
pp. 255-264.
[1] Adam M. Neville, « Propriétés des bétons », Eyrolles, 2000, 824 pages. [2] Hans W. Reinhardt, Timo Wüstholz, “about the influence of the content
and composition of aggregates on the rheological behavior of selfcompacting
concrete”, Materials and Structures, 39, 683‐693, 2006.
[3] K. Chouicha, " La dimension fractale et l’étendue granulaire comme
paramètres d’identification des mélanges granulaires ", Materials and
Structures, 2006, 39, pp.665-681
[4] T. Sedran: Rhéologie et rhéomètrie des bétons. Application aux bétons
autonivelants, thèse de doctorat, LCPC, 1999.
[5] A. Lecomte, A. Thoomas," Caractère fractal des mélanges granulaires
pour bétons de haute compacité ", Materials and Structures, 1992, 25,
pp. 255-264.
@article{"International Journal of Chemical, Materials and Biomolecular Sciences:70548", author = "F. Achouri and K. Chouicha", title = "A Methodological Test to Study the Concrete Workability with the Fractal Model", abstract = "The main parameters affecting the workability are the
water content, particle size, and the total surface of the grains, as long
as the mixing water begins by wetting the surface of the grains and
then fills the voids between the grains to form entrapped water, the
quantity of water remaining is called free water. The aim of this study is to undertake a fractal approach through
the relationship between the concrete formulation parameters and
workability. To develop this approach a series of concrete taken from
the literature was investigated by varying formulation parameters
such as G/S, the quantity of cement C and the quantity of water W. We also call another model as the model of water layer thickness
and model of paste layer thickness to judge their relevance, hence the
following results: the relevance of the water layer thickness model is
considered as a relevant when there is a variation in the water
quantity. The model of the paste layer thickness is only applicable if
we considered that the paste is made with the grain value Dmax =
2.85: value from which we see a stability of the model.", keywords = "Concrete, fractal method, paste layer thickness,
water layer thickness, workability.", volume = "9", number = "4", pages = "570-7", }