Physical characterization of sea shell for a concrete formulation

This paper investigates the feasibility of using shells from marine coasts of the souss massa region in agadir (morocco),as aggregates in the production of a composite material called ecological concrete. different steps were conducted: firstly,a prospecting phase carried out on various sites of the concerned region in order to identify and quantify the different types of waste shells available in sites and also to establish a regional maritime waste cartography. then a sort was done,followed by a thermal treatment to eliminate any kind of impurities,and then a crushing was made to the collected shells. secondly,physical characterizations of different aggregates,including shells,to more particularly determine the measurement of bulk density,the apparent particle density and compactness of shells. a geometric characterization through a particle size analysis was also performed. the obtained parameters were compared to those of the sand dune and quarry sand. furthermore,a study on the chemical characterization on these shells must be conducted. © 2017,university of mohammed premier oujda morocco.