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Influence of different methods of treating natural açai fibre for mortar in rural construction

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dc.contributor.authorRocha, D.L.
dc.contributor.authorAzevedo, A.R.G.
dc.contributor.authorMarvila, M.T.
dc.contributor.authorCecchin, D.
dc.contributor.authorAlexandre, J.
dc.contributor.authorCarmo, D.F.
dc.contributor.authorFerraz, P.F.P.
dc.contributor.authorConti, L.
dc.contributor.authorRossi, G.
dc.date.accessioned2021-05-05T09:38:23Z
dc.date.available2021-05-05T09:38:23Z
dc.date.issued2021
dc.descriptionReceived: January 20th, 2021 ; Accepted: April 15th, 2021 ; Published: May 4th, 2021 ; Correspondence: daianececchin@yahoo.com.breng
dc.description.abstractAçai is a typical Amazonian fruit that has enormous potential for use in medicines and foods, whose consumption has been growing year after year. One of the major environmental impacts related to Açai is the generation of agro-industrial wastes, which are disposed of in landfills. One of the major problems related to the reuse of natural fibres in cementitious materials is related to their durability due to the alkalinity of the matrix. Thus, the objective of this work was to evaluate three different methodologies for surface treatment of Açai fibre, by immersion in NaOH, KOH and Ca(OH)2 solution to mortar application in rural construction. After the treatments, the fibres were added in a proportion of 2.5 and 5.0% in relation to the cement mass, in addition to the reference mortar (without fibre) in the making of the prismatic specimens (40×40×160 mm) and cured for 28 days in room temperature. Right after the curing period, the specimens were evaluated according to the mechanical strength of flexion and compression, workability, water absorption by capillarity and mass density in the hardened state of each methodology. The results showed that the best treatment methodology is with NaOH solution, with the addition of 5% Açai fibre in relation to the cement mass, producing a suitable mortar for use in rural buildings.eng
dc.identifier.issn1406-894X
dc.identifier.publicationAgronomy Research, 2021, vol. 19, Special Issue 1, pp. 910–921eng
dc.identifier.urihttp://hdl.handle.net/10492/6471
dc.identifier.urihttps://doi.org/10.15159/ar.21.062
dc.rightsCreative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) ; openAccess
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subjectagro-industrial wasteseng
dc.subjectaçaieng
dc.subjectreuseeng
dc.subjectrural constructionseng
dc.subjectsustainabilityeng
dc.subjectarticleseng
dc.titleInfluence of different methods of treating natural açai fibre for mortar in rural constructioneng
dc.typeArticleeng

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2021, Vol. 19, Special Issue 1