Moraes, JCB.; Akasaki, JL.; Melges, JLP.; Monzó Balbuena, JM.; Borrachero Rosado, MV.; Soriano Martínez, L.; Paya Bernabeu, JJ.... (2015). Assessment of sugar cane straw ash (SCSA) as pozzolanic material in blended portland cement: Microstructural characterization of pastes and mechanical strength of mortars. Construction and Building Materials. 94:670-677. https://doi.org/10.1016/j.conbuildmat.2015.07.108
Por favor, use este identificador para citar o enlazar este ítem: http://hdl.handle.net/10251/65020
Title:
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Assessment of sugar cane straw ash (SCSA) as pozzolanic material in blended portland cement: Microstructural characterization of pastes and mechanical strength of mortars
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Author:
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Moraes, J. C. B
Akasaki, Jorge Luis
Melges, J. L. P.
Monzó Balbuena, José Mª
Borrachero Rosado, María Victoria
Soriano Martínez, Lourdes
Paya Bernabeu, Jorge Juan
Tashima, Mauro Mitsuuchi
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UPV Unit:
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Universitat Politècnica de València. Instituto de Ciencia y Tecnología del Hormigón - Institut de Ciència i Tecnologia del Formigó
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
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Issued date:
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Abstract:
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The aim of this paper is to assess the pozzolanic reactivity of sugar cane straw ash (SCSA) obtained through an auto-combustion process and the mechanical properties of SCSA-containing systems. Characterization of SCSA ...[+]
The aim of this paper is to assess the pozzolanic reactivity of sugar cane straw ash (SCSA) obtained through an auto-combustion process and the mechanical properties of SCSA-containing systems. Characterization of SCSA (X-ray diffraction, chemical composition, particle size, and microscopy) and reactivity studies on hydrated lime/SCSA and Portland cement/SCSA pastes through infrared spectroscopy, thermogravimetric analysis, and microscopy demonstrated the high pozzolanic activity. This reactivity made it possible to achieve good mechanical properties in mortars in which 15 30% of
the cement was replaced by SCSA. After 90 days of curing, the SCSA fixed 100% of the lime present in lime/SCSA pastes, and the compressive strength of mortars containing SCSA reached 44 MPa, a value similar to those found for control mortars after the same number of curing days. The results for the microstructural and mechanical properties showed that SCSA is a good pozzolanic material.
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Subjects:
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Sugar cane straw ash
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Auto-combustion
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Portland cement
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Microstructural characterization
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Mechanical properties
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Pozzolanic reactivity
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Lime paste
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Cement paste
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Mortar
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Electron Microscopy Service of the UPV
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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.2015.07.108
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Publisher:
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Elsevier
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Publisher version:
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http://dx.doi.org/10.1016/j.conbuildmat.2015.07.108
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Project ID:
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info:eu-repo/grantAgreement/MECD//PHB-2011-0016-PC/ES/Nuevos conglomerantes basados en la activación alcalina de cenizas de babazo y de hoja de caña de azúcar/
info:eu-repo/grantAgreement/CNPq//401724%2F2013-1/
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Thanks:
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The authors would like to thank CNPq-Brazil (process no 401724/2013-1) and the Ministerio de Educacion, Cultura y Deporte of Spain (the Cooperacion Interuniversitaria program with Brazil: PHB-2011-0016-PC). We also thank ...[+]
The authors would like to thank CNPq-Brazil (process no 401724/2013-1) and the Ministerio de Educacion, Cultura y Deporte of Spain (the Cooperacion Interuniversitaria program with Brazil: PHB-2011-0016-PC). We also thank CAPES-Brazil for the Grant for J.C.B. Moraes and Electron Microscopy Service of the Universitat Politecnica de Valencia.
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Type:
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Artículo
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