Thermal behavior evaluation of clays from algodonal formation and their impact on technological properties

Abstract

It is presents the characterization of the clays from the algodonal formation and the mechanical properties of the products manufactured in brickyard “Hora”, located in Ocaña, Norte de Santander, Colombia.Tests of scanning electron microscopy, thermal gravimetric analysis, differential scanning calorimetry, initial rate of absorption, 24-hour immersion, compressive strength, and modulus of rupture were performed. The results indicate that the clay contains a considerable amount of silico-aluminate, while the products have low mechanical strength and high percentage of water absorption. The clays used present difficulty in the process of shaping and compacting the products. None of the samples comply with the values established in the standard and do not allow their use as non-structural masonry products for interior or exterior use.