The Compressive Strength and Microstructure of Alkali-Activated Binary Cements Developed by Combining Ceramic Sanitaryware with Fly Ash or Blast Furnace Slag
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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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comunitat-uji-handle2:10234/7035
comunitat-uji-handle3:10234/8617
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Título
The Compressive Strength and Microstructure of Alkali-Activated Binary Cements Developed by Combining Ceramic Sanitaryware with Fly Ash or Blast Furnace SlagAutoría
Fecha de publicación
2018Editor
MDPIISSN
2075-163XCita bibliográfica
COSA, Juan, et al. The Compressive Strength and Microstructure of Alkali-Activated Binary Cements Developed by Combining Ceramic Sanitaryware with Fly Ash or Blast Furnace Slag. Minerals, 2018, vol. 8, no 8, p. 337.Tipo de documento
info:eu-repo/semantics/articleVersión de la editorial
https://www.mdpi.com/2075-163X/8/8/337Versión
info:eu-repo/semantics/publishedVersionPalabras clave / Materias
Resumen
The properties of a binder developed by the alkali-activation of a single waste material can
improve when it is blended with different industrial by-products. This research aimed to investigate
the influence of blast ... [+]
The properties of a binder developed by the alkali-activation of a single waste material can
improve when it is blended with different industrial by-products. This research aimed to investigate
the influence of blast furnace slag (BFS) and fly ash (FA) (0–50 wt %) on the microstructure and
compressive strength of alkali-activated ceramic sanitaryware (CSW). 4 wt % Ca(OH)2 was added to
the CSW/FA blended samples and, given the high calcium content of BFS, the influence of BFS was
analyzed with and without adding Ca(OH)2. Mortars were used to assess the compressive strength
of the blended cements, and their microstructure was investigated in pastes by X-ray diffraction,
thermogravimetry, and field emission scanning electron microscopy. All the samples were cured
at 20 ◦C for 28 and 90 days and at 65 ◦C for 7 days. The results show that the partial replacement
of CSW with BFS or FA allowed CSW to be activated at 20 ◦C. The CSW/BFS systems exhibited
better mechanical properties than the CSW/FA blended mortars, so that maximum strength values of
54.3 MPa and 29.4 MPa were obtained in the samples prepared with 50 wt % BFS and FA, respectively,
cured at 20 ◦C for 90 days. [-]
Publicado en
Minerals 2018, 8Proyecto de investigación
APLIGEO BIA2015-70107-RDerechos de acceso
info:eu-repo/semantics/openAccess
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