resumo
In this investigation, an innovative and sustainable solution for glass fibre off-cuts is proposed. For the first time, glass fibre fabrics (non-woven mat) produced during wind turbine blade manufacture were used to produce reinforced inorganic polymer composites. The influence of fabric amount on the composites' microstructure, water absorption, strength and apparent density was investigated. Results show that the fabrics exhibited an impressive flexural strength gain (up to 144%) at the 28th day, when compared to the non-reinforced geopolymer, while simultaneously increasing the composites' ductility. This feature may extend the application range of such geopolymers. Moreover, the fabric prevents the complete collapse of the composites upon failure, while the matrix alone fails catastrophically under load. (C) 2018 Elsevier Ltd. All rights reserved.
palavras-chave
BIOMASS FLY-ASH; MECHANICAL-PROPERTIES; COMPOSITES; NANOCLAY; MORTARS; WATER
categoria
Construction & Building Technology; Engineering; Materials Science
autores
Novais, RM; Carvalheiras, J; Capela, MN; Seabra, MP; Pullar, RC; Labrincha, JA
nossos autores
João António de Sousa Carvalheiras
Estudante de doutoramento
João António Labrincha Baptista
Professor Catedrático
Maria Paula Seabra
Professor Auxiliar
Marinélia Capela
Investigador
Rob Pullar
Colaborador
Rui Miguel Novais
Professor Auxiliaragradecimentos
This work was developed within the scope of the project CICECO-Aveiro Institute of Materials, POCI-01-0145-FEDER-007679 (FCT Ref. UID /am /50011/2013), financed by national funds through the FCT/MEC and when appropriate co-financed by FEDER under the PT2020 Partnership Agreement. R.C. Pullar thanks the FCT for funding under grant IF/00681/2015.