Evaluation of pre-treatment efficiency on sugarcane bagasse fibers for the production of cement composites

Autor(es)

Cabral, Matheus R. ^{[1, 2]} ; Nakanishi, Erika Y. ^[1] ; Dos Santos, Valdemir ^[1] ; Palacios, Joahnn H. ^[2] ; Godbout, Stephane ^{[2, 3]} ; Savastano Junior, Holmer ^[1] ; Fiorelli, Juliano ^[1]

Afiliação do(s) autor(es)

^[1] Univ Sao Paulo, Dept Biosyst Engn, Av Duque de Caxias Norte 225, BR-13635900 Pirassununga, SP - Brazil

^[2] Res & Dev Inst Agri Environm, 2700 Einstein St, Quebec City, PQ G1P 3W8 - Canada

^[3] Laval Univ, Soil & Agr Engn, Pavillon Paul Comtois 2425, Rue Agr, Quebec City, PQ - Canada

• Tipo de documento: Artigo Científico
• Fonte: ARCHIVES OF CIVIL AND MECHANICAL ENGINEERING; v. 18, n. 4, p. 1092-1102, SEP 2018.
• Citações Web of Science: 6

Resumo

In the present study, physical, chemical, morphological, crystallographic analysis of the non-treated and treated (100 degrees C during 30 min) sugarcane bagasse fibers were examined. Sugarcane bagasse fibers pre-treatment effect on the Portland cement hydration was monitored by inhibition tests and differential scanning calorimetry in the first 24 h. Furthermore, 28 days age physical-mechanical properties of cement composite materials with sugarcane bagasse fibers were also evaluated. Inhibition index of treated sugarcane bagasse fibers was 5.9%, while for the non-treated sugarcane bagasse fibers it was 67.3%. Cement composites containing treated sugarcane bagasse fibers showed lower physical properties (water absorption and thickness swelling) than the cement composites reinforced with non-treated sugarcane bagasse fibers (p < 0.05). Likewise, mechanical properties under flexure (modulus of rupture, MOR, and modulus of elasticity, MOE) of cement composites with treated sugarcane bagasse fibers showed higher values than the cement composites with non-treated sugarcane bagasse fibers (p < 0.05), thus proving the pre-treatment efficiency on sugarcane bagasse fibers for cement composites. (C) 2018 Published by Elsevier B.V. on behalf of Politechnika Wroclawska. (AU)

• Processo FAPESP: 13/23810-8 - Estudo de matrizes cimentícias com cinzas agroindustriais e fibras vegetais para fibrocimento
• Beneficiário: Valdemir dos Santos
• Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado
• Processo FAPESP: 16/07372-9 - Painéis à base de biomateriais com gradação funcional para uso como abrigo para leitões
• Beneficiário: Erika Yukari Nakanishi
• Modalidade de apoio: Bolsas no Brasil - Doutorado