Per: iully da silva amaral pereira (UENF), José Alexandre Tostes Linhares Júnior (UENF), Samuel Araújo Azevedo Malafaia (UENF), Juliana Fadini Natalli (UENF), Sergio Neves Monteiro (UENF), Markssuel Teixeira Marvila (UENF), Afonso Rangel Garcez Azevedo (UENF)
Abstract:
Sustainability is a widely discussed topic in civil construction, because this industry is one of the biggest polluters in CO2 emissions, which has aroused the need to seek more sustainable alternatives in relation to the environment. Thus, one of the advantages found in this industry is the ability to incorporate waste into its materials, resulting in reduced environmental impacts. In this scenario, this study evaluates the potential of treating natural fibers in coating mortars, checking the consistency index, mass density in the fresh state, incorporated air content and viscosity. The mixtures were prepared with 1.5% pineapple leaf fiber, superficially treated with tannic acid in proportions of 5 and 10%, in addition to the reference for comparative analysis. The mortars were prepared using the proportion 1:1:6:1.5 (cement: lime: sand: water) and, although they showed a reduction in workability, only one of them was outside the standards established by the norm. The other evaluated properties indicated a reduction, resulting in benefits, in comparison with the reference. Therefore, the feasibility of applying this treatment and incorporating fresh natural fiber into mortars is evident.