Application of a Granular Model to Identify the Particle Size of the Granular Mixtures of Concrete Based on Dune Sands

Abstract

The control of the determination of concrete depends on the basic properties of the desired concrete and thanks to the type of granular mixture of concrete. We arrive at the required concrete quality. And in this study, we can identify the granular distribution class of concrete using the fractal model. In particular, the granular distribution can be determined by the fractal dimension, either for each granular component separately, or for the dry granular mixture of the concrete. The fractional dimension is obtained by transforming the particle size curve to a fractal line. In this study, we used some experimental results obtained from projects already carried out in arid regions. Knowing that we have applied parameters such as granular extent and fractional dimension to the study of these existing projects, we can define a dry mix of concrete through the granular distribution. Therefore, we used the program that we proposed previously of transforming the grain size curves to a fractal line which was obtained for each grain mixture with a very acceptable correlation.

Determining the characteristics of dune sand used in the building of different sites for the desert environment.

“…Hence, by transforming the granulometric curve into a fractal line and calculating the value of the fractal dimension (FD), (Abdeldjalil & Yous 2020;Abdeldjalil 2022;Ghorbel et al, 2019;Abdeldjalil 2022), was able to identify the granular distribution of the dune sand utilized as a granular component of concrete.…”

“…The second test was more accurate since it was conducted on all the sand and the material was clipped at 6.3mm in order to provide limits for each type of sand. The result obtained must be expressed in grams of blue (Abdeldjalil, 2022). In general, sands can be classi ed as either silica sands or silica-limestone sands.…”

“…Fine aggregates (sand) occupy approximately one third of the volume of concrete and two thirds of cement mortar, which showed the importance given to the use of this material in the eld of construction and industry (Minglei et (Abdeldjalil, 2022 a). Since ancient times, dune sand has been used as a base material in elements as a raw material (Minglei et al, 2023), (Abadou et al, 2020), (Ghorbel et al, 2019), (Abdeldjalil & Yous 2020), (Abdeldjalil, However, in recent years it has become apparent that the availability of high-quality sand is decreasing, especially in areas where natural sand was used, with a few exceptions.…”

“…The ever-increasing demand for construction in Algeria, particularly in dry regions (Abdeldjalil, 2022 a), (Daheur et al;, has resulted in the haphazard use of sand and its inadequate technical and scienti c utilization.…”