abstract
This work investigates the production a green geopolymer-based concrete for a sustainable construction material using biomass wastes from a kraft pulp industry: fly ash (as main alumina-silicate source) and grits (as aggregate). Moreover, a simple, reproducible, ambient temperature, and low-cost manufacture is followed. Mix design aims to maximize wastes incorporation and optimize the mechanical performance. Preliminary tests indicate that the used wastes may be successfully employed to produce green geopolymeric concretes with satisfying mechanical performance (up to 18 MPa), according to the European standards. Furthermore, they represent a viable solution to reduce the environmental footprint associated with waste disposal. (C) 2018 Elsevier B.V. All rights reserved.
keywords
SUSTAINABILITY; TECHNOLOGY; INDUSTRY
subject category
Materials Science; Physics
authors
Saeli, M; Novais, RM; Seabra, MP; Labrincha, JA
our authors
João António Labrincha Baptista
Full professor
Manfredi Saeli
Post-Doc Fellowship
Maria Paula Seabra
Assistant Professor
Rui Miguel Novais
Assistant Professoracknowledgements
This work is financed by Portugal 2020 through European Regional Development Fund in the frame of Operational Competitiveness and Internationalization Programme (POCI) in the scope of the project PROTEUS - POCI-01-0247-FEDER-017729 and in the scope of the project CICECO - Aveiro Institute of Materials CTM/50011 (Compete Reference: POCI-01-0145-FEDER-007679), Associated Laboratory of University of Aveiro, co-financed by Fundacao para a Ciencia e Tecnologia/MCTES.