New Cellular Geopolymer Concretes (CGC) Based on Blast Furnace Slag and Spent FCC Catalyst
A. Font, J. Monzó, L. Soriano, M.V. Borrachero, J. Payá
Abstract. In current society, the study and development of new construction materials with the aim of improve its sustainability and clean production represents an important goal to be achieved by scientific communities worldwide. This work presents the preliminary studies of new cellular geopolymer concretes (CGC), which combines energy and economic savings achievable through the use of cellular concrete, with the reduction of greenhouse gas emissions well-known linked with the substitution of traditional Portland cement binder by new geopolymer binder. Blast furnace slag (BFS) and spent FCC catalyst (FCC) were used as mineral precursors in CGC preparation, and two methods of pore formation were evaluated in each matrix: (i) mechanical, by addition of commercial grade synthetic surfactant (sodium lauryl sulfate); and (ii) a combined procedure, by mixing of this surfactant and aluminum powder. Pore distribution analyses were also performed. The results confirm the viability of producing cellular geopolymer concretes based on FCC as well as BFS by combined both foaming and aerating techniques. The obtained CGCs were mechanically characterized (5-8 MPa), yielding densities 30% lower respect to OPC systems, showing a compacted matrix and a homogeneous pore structure.
Cellular Concrete, Geopolymer, Aluminum Powder, Sodium Lauryl Sulfate
Published online , 10 pages
Copyright © 2018 by the author(s)
Published under license by Materials Research Forum LLC., Millersville PA, USA
Citation: A. Font, J. Monzó, L. Soriano, M.V. Borrachero, J. Payá, ‘New Cellular Geopolymer Concretes (CGC) Based on Blast Furnace Slag and Spent FCC Catalyst’, Materials Research Proceedings, Vol. 7, pp 685-694, 2018
The article was published as article 66 of the book Non-Conventional Materials and Technologies
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