Study of the physical and mechanical properties with the chemical composition of red clays from the State of Bahia

ABSTRACT

This work verified the dependence of the physical and mechanical properties with the chemical composition of several red clays in the State of Bahia. The granulometry of the materials was preserved in screens up to 30 mesh. For physical-chemical and mechanical characterization, the following tests were performed: plasticity limit, liquidity limit, staining after burning at 900/1000/1100 °C, linear retraction, rupture stress module, determination of absorption water, particle size distribution, natural moisture, and loss of mass to fire (flaming mode). In parallel, the technique of Optical Emission Spectrometry with Inductively Coupled Plasma - ICP - OES, Model Perkin Elmer Optima 8300 was used to determine the chemical composition of the clays. The results showed the dependence of properties on the chemical composition of clays in a synergistic and conciliatory way.

Keywords
Red Clays; Composition; Physical-Chemical Properties; Description