Viability of incorporating scheelite waste into mortar
DOI:
https://doi.org/10.6008/CBPC2179-6858.2021.003.0035Keywords:
Scheelite waste, Alternative mortar, Alternative materialsAbstract
In order to reconcile the progress of the construction sector with the preservation of the environment, studies have been developed in order to minimize the environmental impacts caused by the construction industry. Thus, the study of the production of alternative materials is a promising aspect in this sense. Among the materials whose researches have been developed, is the mortar, a material widely used during the construction process, being composed, in general, by agglomerant, small aggregate and water. In view of this, the present work aimed to follow the above mentioned line of thought, producing alternative mortar incorporated with scheelite waste, in partial substitution of the natural small aggregate, verifying its performance through the analysis of simple compression resistance and water absorption. For this, the physical characterization of the materials was carried out and then the dosage and moulding of the specimens. Five specimens were molded for each composition of 1:3 trace (in volume) and for each age of cure (7, 14 and 28 days). After curing the specimens, the test of resistance to simple compression and water absorption was performed, for the analysis of the performance of the alternative mortar. It was verified that at 28 days the two compositions studied (30% and 50%) presented resistance close to the reference mortar and water absorption values a little higher than the same. Given the results obtained, it was concluded that there is feasibility of incorporating scheelite waste in the mortar, which reflects in a promising contribution to the construction industry, materials and environmental preservation.
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