Agregados alternativos na elaboração de argamassas para revestimento de instalações zootécnicas

Abstract

The development of mortars with the use of non-conventional materials has been the object of studies, mainly regarding the search for new manufacturing techniques and applications that make feasible its use. This work presents as objective the evaluation of the behavior of thermal mortars made with the use of alternative materials in partial sand substitution, in the proportions of 10 and 15%. Incorporations of vermiculite, mineral (mica and quatzo) and PET residues were compared to a conventional mortar. The mortars plates were molded in rectangular shape measuring 30cm of length, 15cm of width and 20mm of thickness. The thermal behavior of the different plates produced was analyzed by the temperatures recorded on their upper and lower faces. The data were collected using sensors connected to a microcontroller of the type (Arduino®), which measured their temperatures every 5 minutes and stored on a memory card. The experiment presented two experimental periods with 7 days each. The results showed that the mortars with 10% of residues had similar behavior, however, in the plate with minerals the lower temperature was detected in the upper face, and in the lower face the result was similar to the others showing that the material is a good thermal conductor, which is the most unsatisfactory treatment for energy absorption. Regarding the substitutions with 15%, the highest thermal gradients were in the plates with PET and Minerals.