Impact of content and length of curaua fibers on mechanical behavior of extruded cementitious composites: Analysis of variance

Autor(es)

Teixeira, R. S. ^[1] ; Santos, S. F. ^[2] ; Christoforo, A. L. ^[3] ; Paya, J. ^[4] ; Savastano, Jr., H. ^[5] ; Rocco Lahr, F. A. ^[1]

Afiliação do(s) autor(es)

^[1] Univ Sao Paulo, Dept Struct Engn, Av Trabalhador Sao Carlense 400, BR-13566590 Sao Carlos, SP - Brazil

^[2] Sao Paulo State Univ UNESP, Dept Mat & Technol, Av Ariberto Pereira Cunha 333, BR-12516410 Guaratingueta, SP - Brazil

^[3] Fed Univ Sao Carlos UFSCar, Dept Civil Engn, Rodovia Washington Luis, Km 235 S-N, BR-13565905 Sao Carlos, SP - Brazil

^[4] Univ Politecn Valencia, Inst Sci & Technol Concrete, Camino Vera S-N, Edificio 4N, E-46022 Valencia - Spain

^[5] Univ Sao Paulo, Dept Biosyst Engn, Av Duque Caxias Norte 225, BR-13635900 Pirassununga, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: CEMENT & CONCRETE COMPOSITES; v. 102, p. 134-144, SEP 2019.
• Citações Web of Science: 0

Resumo

The use of composite materials in construction has grown considerably in recent years, such as cementitious matrices and concrete reinforced with fibers. The vegetable fibers have become an alternative due to its abundance, low cost and low energy consumption for its production, and appropriate properties mechanical. Curaua fiber is a plant native from Amazonas harvested manually in commercial farming and it is used in the manufacture of ropes and baskets or as reinforcement in composite with organic matrix of components for cars, buses and trucks. On the other hand, the extrusion process can produce composites with high-density matrix with fibers, low permeability and good interface between fiber and matrix. This process is also compatible with the use of vegetable fibers as raw materials in the production of cost-effective construction elements such as ceiling panels and drywalls. The objective of this research was use the analysis of variance (ANOVA) for evaluating with rigor mathematical the influence of content and length of curaua fibers on the mechanical behavior of the extruded cementitious composites. Composites without fibers and reinforced with 1% and 2% by mass of fibers as well as 6 mm and 10 mm of length these curaua fibers were evaluated. The composites with fibers of 10 mm have showed better mechanical results. Besides, the composites with fibers curaua after 200 accelerated aging cycles were better than one non-aging. (AU)

• Processo FAPESP: 13/03823-8 - Parâmetros reológicos do processo e sua influência sobre o desempenho de fibrocimento extrudados
• Beneficiário: Holmer Savastano Junior
• Modalidade de apoio: Auxílio à Pesquisa - Regular
• Processo FAPESP: 12/51467-3 - Agroindustrial wastes and their potential use as appropriate materials for housing and infraestructure (Agrowaste)
• Beneficiário: Holmer Savastano Junior
• Modalidade de apoio: Auxílio à Pesquisa - Temático