Caracterização físico-química de um solo arenoso visando sua aplicação em construções de terra

Abstract

Given the environmental impacts caused by the construction industry, it is necessary to seek ways to implement ecological and natural materials, breaking society's paradigms when it comes to building. Soil is the most abundant component on the earth's surface and can be used in several applications, such as: rammed earth, adobe and plaster. Therefore, the objective of this work is to carry out the physical and chemical characterization of a sample of sandy soil from the municipality of Tamarana, at natural temperature, and calcined at 400 and 700 ºC to then suggest applications as building material for earthen constructions. Among the physical characterizations discussed, it is possible to mention the granulometric analysis, the Atterberg limits, specific gravity of the grains and the organic matter content. Next, for chemical characterization, X-ray diffraction and X-ray fluorescence tests were performed. The results found in both tests follow a trend of their values according to the rise in soil calcination temperatures. In the raw state, the sample had a higher amount of clay, while for the one calcined at 700 ºC, the highest concentration of sand in its composition. Analyzing the XRD plots, it determined low presence of amorphous region. Using the norms as comparatives to suggest the application of this soil, it was noted that in some cases addressed the stipulated requirements were met, however some interventions can be made so that its use is made possible in earth constructions.