Evaluation of the Properties in the Fresh and Hardened State of a Metakaolin Geopolymeric Mortar Reinforced with Açaí Fibers

The use of agro-industrial residuesResidue in the production of geopolymeric mortarsMortars has been a point of growing scientific interest not only for gains in mechanical propertiesMechanical properties, but also for sustainabilitySustainability. In this context, natural fibersNatural Fiber stand out for being biodegradable and having lower energy consumption, availability, low density and low cost when compared to synthetic fibers. The natural fiberNatural Fiber from açaíAçaí is an example of agro-industrial wasteWastes generated in large quantities whose disposal is a major environmental problem. Thus, the objective of this work was to produce a metakaolinMetakaolin geopolymeric mortarMortars with the addition of açaí fibersAçaí fibers at 1 and 2% in relation to the mass of the precursor, with fibers not treated and treated with 5 and 10% of NaOH. Then, the samples were tested in the hardened state with resistance to flexion and compression tests and in the fresh state by the Vicat and dropping-ball tests.