The influence of clay composition and lithology on the industrial potential of earthenware. (30th May 2018)

• Record Type: Journal Article
• Authors: El Boudour El Idrissi, Hicham; Daoudi, Lahcen; El Ouahabi, Meriam; Collin, Frédéric; Fagel, Nathalie
• Is Part Of: Construction & building materials. Volume 172(2018)
• Page Start: 650
• Page End: 659
• Publication Date: 2018-05-30
• Subjects: Earthenware -- Clay composition -- Lithology -- Shards properties -- Industrial potential; Building materials -- Periodicals; 624.18
• DOI: 10.1016/j.conbuildmat.2018.04.019
• Languages: English
• ISSNs: 0950-0618

Abstract

Highlights: Earthenware properties of different clay lithologies have been evaluated. Argillite exhibits the highest mechanical strength among the studied lithologies. The difference between clay fraction and total clay content may depend on lithology. Particle size has more influence on mechanical strengths than fluxing agents. Various clay lithologies are suitable for construction materials industry. Abstract: This paper investigates the influence of clay composition and lithology on the industrial potential of earthenware. The 26 ceramic pastes collected were subjected to particle-size analysis, X-ray diffraction and X-ray fluorescence to investigate their compositions. The shards properties were determined through porosity tests, shrinkage, flexural and compressive strengths. Based on obtained results, all studied ceramic pastes turn out to offer a great potentiality for the earthenware industry despite their varied lithology. Argillite-based pastes exhibit the highest mechanical strengths while colluvium and schist-based pastes exhibit the lowest mechanical strengths. Further, the results have established a reference database for the perpetual restoration work of Marrakech monuments and can help to tracing back the source areas of the archaeological materials of this city.