Marmol De Los Dolores, G.; HOLMER SAVASTANO JUNIOR; Monzó Balbuena, JM.; Borrachero Rosado, MV.; Soriano Martinez, L.; Paya Bernabeu, JJ. (2016). Portland cement, gypsum, and flu ash binder systems characterization for lignocellulosic fiber-cement. Construction and Building Materials. 124:208-218. doi:10.1016/j.conbuildmat.2016.07.083
Por favor, use este identificador para citar o enlazar este ítem: http://hdl.handle.net/10251/82108
Title:
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Portland cement, gypsum, and flu ash binder systems characterization for lignocellulosic fiber-cement
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Author:
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Mármol de los Dolores, Gonzalo
HOLMER SAVASTANO JUNIOR
Monzó Balbuena, José Mª
Borrachero Rosado, María Victoria
Soriano Martínez, Lourdes
Paya Bernabeu, Jorge Juan
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UPV Unit:
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Universitat Politècnica de València. Escuela Técnica Superior de Ingenieros de Caminos, Canales y Puertos - Escola Tècnica Superior d'Enginyers de Camins, Canals i Ports
Universitat Politècnica de València. Instituto de Ciencia y Tecnología del Hormigón - Institut de Ciència i Tecnologia del Formigó
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Issued date:
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Abstract:
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The present work aims to obtain an optimal Portland cement, gypsum and fly ash (OPC-G-FA) ternary binder matrix and assess both the addition of paper pulp-by means of mechanical dispersion in aqueous suspension-for ...[+]
The present work aims to obtain an optimal Portland cement, gypsum and fly ash (OPC-G-FA) ternary binder matrix and assess both the addition of paper pulp-by means of mechanical dispersion in aqueous suspension-for cementitious composites reinforcement and the fiber properties over time. To evaluate microfibers preservation from pulp in low-alkaline environments, ternary binder matrices OPC-G-FA are optimized to achieve lower pH values. For that purpose, pH and electrical conductivity over time were analyzed. Only samples with the lowest content in Portland cement (15 20%) offered low alkalinity for short-term. The use of ternary binder systems enhances microfibers conservation compared with control samples (matrices 100% Ordinary Portland Cement) by using FA that, as expected, reduces the presence of Ca(OH)2 in the matrix. Mechanical results prove that obtained matrices yield to a mechanical properties maintenance unlike samples with OPC matrices where toughness is reduced by 95%
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Subjects:
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Fiber-cement
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Lignocellulosic fibers endurance
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Ternary Portland cement
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Pozzolan and Gypsum systems
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Copyrigths:
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Reserva de todos los derechos
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Source:
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Construction and Building Materials. (issn:
0950-0618
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DOI:
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10.1016/j.conbuildmat.2016.07.083
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Publisher:
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Elsevier
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Publisher version:
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https://doi.org/10.1016/j.conbuildmat.2016.07.083
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Project ID:
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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq – Brazil) by means of a grant [351196/2014-5].
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Thanks:
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Financial support for this research project was provided by Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPq - Brazil) by means of a grant [351196/2014-5].
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Type:
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Artículo
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