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Effect of sugar cane straw ash (SCSA) as solid precursor and the alkaline activator composition on alkali-activated binders based on blast furnace slag (BFS)

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Effect of sugar cane straw ash (SCSA) as solid precursor and the alkaline activator composition on alkali-activated binders based on blast furnace slag (BFS)

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dc.contributor.author Moraes, J.C.B es_ES
dc.contributor.author Mitsuuchi Tashima, Mauro es_ES
dc.contributor.author Akasaki, Jorge Luis es_ES
dc.contributor.author J.L.P.Melges es_ES
dc.contributor.author Monzó Balbuena, José Mª es_ES
dc.contributor.author Borrachero Rosado, María Victoria es_ES
dc.contributor.author Soriano Martínez, Lourdes es_ES
dc.contributor.author Paya Bernabeu, Jorge Juan es_ES
dc.date.accessioned 2018-04-22T04:12:35Z
dc.date.available 2018-04-22T04:12:35Z
dc.date.issued 2017 es_ES
dc.identifier.issn 0950-0618 es_ES
dc.identifier.uri http://hdl.handle.net/10251/100824
dc.description.abstract [EN] Alkali-activated materials (AAM) comprise one of the solutions to diminish the use of Portland cement in building construction and, consequently, a reduction in the environmental problems related to CO2 emissions and energy consumption may be achieved. These kinds of binders are obtained when a mineral precursor (calcium silicate or aluminosilicate material) is mixed with an alkaline solution. In this study, the blast furnace slag (BFS) combined with a new waste from the sugar cane industry, sugar cane straw ash (SCSA), is utilised. This new residue was studied replacing partially the blast furnace slag in BFS/SCSA proportions of 100/0, 85/15, 75/25, 67/33 and 50/50. The alkaline solution concentration plays an important role in obtaining AAM with good mechanical properties. Therefore, this paper intends to assess the influence of the activating solution (composed of sodium hydroxide and sodium silicate) through different H2O/Na2O (called g) and SiO2/Na2O (called e) molar ratios. For BFS/SCSA proportions of 100/0 and 75/25, the g values assessed were 22, 28 and 37, whereas the e values selected were 0 and 0.75. In order to study the effects of SCSA in the mixture, other BFS/SCSA proportions (0¿50% replacement) were assessed by only g and e ratios of 28 and 0¿0.75, respectively. To reach these objectives, mortars and pastes were manufactured in order to study their behaviour in the following tests: compressive strength (3, 7, 28 and 90 days of curing at 25 C), Fourier transform infrared spectroscopy (FTIR), thermogravimetric analysis (TGA), X-ray diffraction (XRD), mercury intrusion porosimetry (MIP) and field emission scanning electron microscopy (FESEM). The results showed that the alkaline solution influenced the compressive strength development, and specimens reached more than 60 MPa after 90 days of curing es_ES
dc.description.sponsorship The authors would like to thanks to CNPq processo no 401724/2013-1 and the "Ministerio de Educacion, Cultura y Deporte" of Spain ("Cooperacion Interuniversitaria" program with Brazil PHB-2011-0016-PC). Thanks are also given to the Electron Microscopy Service of the Universitat Politecnica de Valencia. en_EN
dc.language Inglés es_ES
dc.publisher Elsevier es_ES
dc.relation MINISTERIO DE ECONOMIA INDUSTRIA Y COMPETITIVIDAD /BIA2015-70107-R es_ES
dc.relation.ispartof Construction and Building Materials es_ES
dc.rights Reserva de todos los derechos es_ES
dc.subject Environmentally friendly material es_ES
dc.subject Biomass waste es_ES
dc.subject Compressive strength es_ES
dc.subject Microstructural studies es_ES
dc.subject Sustainability es_ES
dc.subject Electron Microscopy Service of the UPV
dc.subject.classification INGENIERIA DE LA CONSTRUCCION es_ES
dc.title Effect of sugar cane straw ash (SCSA) as solid precursor and the alkaline activator composition on alkali-activated binders based on blast furnace slag (BFS) es_ES
dc.type Artículo es_ES
dc.identifier.doi 10.1016/j.conbuildmat.2017.03.166 es_ES
dc.rights.accessRights Abierto es_ES
dc.date.embargoEndDate 2019-07-30 es_ES
dc.contributor.affiliation Universitat Politècnica de València. Departamento de Ingeniería de la Construcción y de Proyectos de Ingeniería Civil - Departament d'Enginyeria de la Construcció i de Projectes d'Enginyeria Civil es_ES
dc.contributor.affiliation Universitat Politècnica de València. Instituto de Ciencia y Tecnología del Hormigón - Institut de Ciència i Tecnologia del Formigó es_ES
dc.description.bibliographicCitation Moraes, J.; Mitsuuchi Tashima, M.; Akasaki, JL.; J.L.P.Melges; Monzó Balbuena, JM.; Borrachero Rosado, MV.; Soriano Martinez, L.... (2017). Effect of sugar cane straw ash (SCSA) as solid precursor and the alkaline activator composition on alkali-activated binders based on blast furnace slag (BFS). Construction and Building Materials. 144:214-224. doi:10.1016/j.conbuildmat.2017.03.166 es_ES
dc.description.accrualMethod S es_ES
dc.relation.publisherversion https://doi.org/10.1016/j.conbuildmat.2017.03.166 es_ES
dc.description.upvformatpinicio 214 es_ES
dc.description.upvformatpfin 224 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 144 es_ES
dc.relation.pasarela S\356323 es_ES
dc.contributor.funder Ministerio de Economía, Industria y Competitividad es_ES


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