Formulation of Ordinary Concrete using the Dreux-Gorisse Method
Hamza Chbani, Bouchra Saadouki, Boudlal El Mostapha, Mohamed Barakat
Abstract
In this paper an experimental study was carried out with the aim of determining the formulation of an ordinary concrete intended for the construction of slabs and engineering structures. The targeted concrete has a mechanical compressive strength of 25 MPa with a slump of 8 cm which gives a plastic concrete of class S2. The experimental procedure starts with a physical characterization of the aggregates, we calculate the density, porosity and compactness. A granulometric analysis was carried out to determine the proportion of aggregates according to their size. After applying the Dreux-Gorisse method, the concrete formulation found is characterized by a water/cement ratio of 0.7, a percentage of 30% sand, 45% gravel 3/8, and 25% gravel 8/16.