Valuation of Local Materials in Road Construction in Arid Zones

Akacem, Mustapha; Moulay Omar, Hassan; Djafari, Driss; Abbou, Mohammed

Algerian Journal of Renewable Energy and Sustainable Development
Volume 3, Numéro 2, Pages 115-131
2021-12-15

Valuation Of Local Materials In Road Construction In Arid Zones

Authors : Akacem Mustapha . Moulay Omar Hassan . Djafari Driss . Abbou Mohammed .

Abstract

The materials constituting the pavement bodies, until today, have been limited to certain so-called noble materials (rolled sands, aggregates, etc.), but these are in the process of being exhausted under the effect of intensive exploitation and the scarcity ofquality quarries.With the objective of preserving the deposits of aggregates in the process of exhaustion for future generations and of exploiting the aeolian sands in abundance in the regions of southern Algeria, we aim to enhance the latter in the bodyof the roadway mixed with the tuffs, this would imply a reduction in construction costs (use of local aggregates of lower quality available in large quantities, reduction in transport costs). From an environmental point of view, this would limit the impacts with a reduction in CO2emissions linked to transport.In this work, we applied a new approach based on the technique of mixtures to valorize and exploit the sand of dunes existing in abundance, with the treatment in hydraulic binders, which allowed us to go up to 20% of sand dunes.