Influence of Addition of Fluid Catalytic Cracking Residue (FCC) and the SiO2 Concentration in Alkali-Activated Ceramic Sanitary-Ware (CSW) Binders
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Otros documentos de la autoría: Cosa, Juan; Soriano, Lourdes; Borrachero, Mª Victoria; Reig, Lucía; PAYÁ, JORDI; Monzó, José María
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Título
Influence of Addition of Fluid Catalytic Cracking Residue (FCC) and the SiO2 Concentration in Alkali-Activated Ceramic Sanitary-Ware (CSW) BindersAutoría
Fecha de publicación
2018Editor
MDPIISSN
2075-163XCita bibliográfica
Cosa, J.; Soriano, L.; Borrachero, M.V.; Reig, L.; Payá, J.; Monzó, J.M. Influence of Addition of Fluid Catalytic Cracking Residue (FCC) and the SiO2 Concentration in Alkali-Activated Ceramic Sanitary-Ware (CSW) Binders. Minerals 2018, 8, 123.Tipo de documento
info:eu-repo/semantics/articleVersión de la editorial
http://www.mdpi.com/2075-163X/8/4/123Versión
info:eu-repo/semantics/publishedVersionPalabras clave / Materias
Resumen
Production of Portland cement requires a large volume of natural raw materials and
releases huge amounts of CO2 to the atmosphere. Lower environmental impact alternatives focus on
alkali-activated cements. In this ... [+]
Production of Portland cement requires a large volume of natural raw materials and
releases huge amounts of CO2 to the atmosphere. Lower environmental impact alternatives focus on
alkali-activated cements. In this paper, fluid catalytic cracking residue (FCC) was used to partially
replace (0 wt %–50 wt %) ceramic sanitaryware (CSW) in alkali-activated systems. Samples were
activated with NaOH and sodium silicate solutions and were cured at 65 ◦C for 7 days and at 20 ◦C for
28 and 90 days. In order to increase CSW/FCC binders’ sustainability, the influence of reducing the
silica concentration (from 7.28 mol·kg−1 up to 2.91 mol·kg−1
) was analyzed. The microstructure of
the developed binders was investigated in pastes by X-ray diffraction, thermo tests and field emission
scanning electron microscopy analyses. Compressive strength evolution was assessed in mortars.
The results showed a synergetic effect of the CSW/FCC combinations so that, under the studied
conditions, mechanical properties significantly improved when combining both waste materials
(up to 70 MPa were achieved in the mortars containing 50 wt % FCC cured at room temperature for
90 days). Addition of FCC allowed CSW to be activated at room temperature, which significantly
broadens the field of applications of alkali-activated CSW binders. [-]
Publicado en
Minerals 2018, 8, 123Proyecto de investigación
APLIGEO BIA2015-70107-RDerechos de acceso
info:eu-repo/semantics/openAccess
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