Influence of Flat-Shaped Aggregates in Granular Skeleton on Its Compactness

Abstract

This paper introduces a study of the compactness properties of granular skeleton depending on the quantity of flat-shaped aggregate. To achieve our goal, we took two granular classes 06/10 and 10/20 from Lilikopé quarry, then we made the determination of the percentages of the flat shapes by the manual method, vernier caliper. The method used for compactness is the method number 61 of LCPC (Laboratoire Central des Ponts et Chaussé de la France/Central Laboratory of Bridges and Roads of France). The determination of the compactness considering granular skeletons is composed of: 0, 25, 50, 75, and 100% of flat-shaped aggregates. A program that highlights the influence of aggregates shapes in a granular skeleton on compactness will bring out later more perspectives for the use of flat aggregates. The objective is often to combine the grains to minimize the porosity in order to minimize the use of a binder. They require the knowledge of some basic data on the optimization of this parameter in addition to other factors.