Abstract:
This experimental study aimed to improve the chemical and mechanical properties of concrete
using dune sand from southern Algeria (region of Aïn Salah). The characteristics of the raw
materials were analyzed and several concrete formulations and mortar formulation containing
varying proportions of dune sand and fine dune sand were tested. The results showed that the use
of dune sand up to 30% improves the compressive strength of the concrete as well as itsresistance
to sulfate attacks, highlighting its utility as a sustainable and economical alternative to ordinary
sand. Additionally, the use of this sand contributes to reducing the environmental impact of the
concrete industry by lowering carbon emissions and the consumption of traditional natural
resources. The study demonstrates the potential for wider application of this technique following
further research and development.
