<abstract xmlns="http://www.w3.org/1999/xhtml">

<p>The production of crushed sand is accompanied by the production of fine particles. The proportion of these fine particles varies from one sand to another. The current publications of standards for reference in the construction industry have been adapted by increasing the limit of fine particles in crushed sand, but this is insufficient because sands with high rate of fine particles are not used in the industry. The principal objective of this study is to investigate the influence of crushed sands with different mineralogical natures (limestone and siliceous) and with varying proportions of fine particles on the evolution of the modulus of deformability and of longitudinal and transverse Elasto-instantaneous deformations. The experimental results showed that the longitudinal and transverse Elasto-instantaneous deformations and the modulus of deformability varied according to the nature of the sands (river sand, quarry sand, dune sand) and according to the fine content of the sands. Logarithmic regressions showed an accurate fit for the correlation coefficient R<sup>2</sup>. The test results demonstrated that deformations are influenced by sand type and indicated an optimal of 10% of fine particles. Empirical equations can predict the modulus of deformability from prismatic concretes.</p>
</abstract>

The production of crushed sand is accompanied by the production of fine particles. The proportion of these fine particles varies from one sand to another. The current publications of standards for reference in the construction industry have been adapted by increasing the limit of fine particles in crushed sand, but this is insufficient because sands with high rate of fine particles are not used in the industry. The principal objective of this study is to investigate the influence of crushed sands with different mineralogical natures (limestone and siliceous) and with varying proportions of fine particles on the evolution of the modulus of deformability and of longitudinal and transverse Elasto-instantaneous deformations. The experimental results showed that the longitudinal and transverse Elasto-instantaneous deformations and the modulus of deformability varied according to the nature of the sands (river sand, quarry sand, dune sand) and according to the fine content of the sands. Logarithmic regressions showed an accurate fit for the correlation coefficient R2. The test results demonstrated that deformations are influenced by sand type and indicated an optimal of 10% of fine particles. Empirical equations can predict the modulus of deformability from prismatic concretes.

Effect of Sands on the Evolution of the Modulus of Deformability and Longitudinal and Transverse Elasto-Instantaneous Deformations as a Function of the Relative Constraint in Concrete

Laboratory of Materials and durability of constructions (lMdc)

Department of Civil Engineering and Mechanical

EL Bachir EL Ibrahimi, University of Bordj Bou Arreridj

Department of Civil Engineering and Hydraulics

Journal of Applied Engineering Sciences

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

The production of crushed sand is accompanied by the production of fine particles. The proportion of these fine particles varies from one sand to another. The...

Effect of Sands on the Evolution of the Modulus of Deformability and Longitudinal and Transverse Elasto-Instantaneous Deformations as a Function of the Relative Constraint in Concrete

Publié en ligne: 21 déc. 2022

Pages: 185 - 192

Reçu: 27 avr. 2022

Accepté: 02 mai 2022

DOI: https://doi.org/10.2478/jaes-2022-0025

Mots clés
Modulus of deformability, longitudinal and transverse elasto-instantaneous deformations, crushed sand, fine particles, correlation coefficient

© 2022 M.L.K. Khouadjia et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Effect of Sands on the Evolution of the Modulus of Deformability and Longitudinal and Transverse Elasto-Instantaneous Deformations as a Function of the Relative Constraint in Concrete

Publié en ligne: 21 déc. 2022

Pages: 185 - 192

Reçu: 27 avr. 2022

Accepté: 02 mai 2022

DOI: https://doi.org/10.2478/jaes-2022-0025

Mots clésModulus of deformability, longitudinal and transverse elasto-instantaneous deformations, crushed sand, fine particles, correlation coefficient

© 2022 M.L.K. Khouadjia et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Mots clés
Modulus of deformability, longitudinal and transverse elasto-instantaneous deformations, crushed sand, fine particles, correlation coefficient