dc.contributor | Universidade Estadual Paulista (Unesp) | |
dc.contributor | ICITECH - Instituto de Ciencia y Tecnología del Hormigón, Universitat Politècnica de València | |
dc.date.accessioned | 2018-12-11T16:38:51Z | |
dc.date.available | 2018-12-11T16:38:51Z | |
dc.date.created | 2018-12-11T16:38:51Z | |
dc.date.issued | 2015-07-21 | |
dc.identifier | Construction and Building Materials, v. 94, p. 670-677. | |
dc.identifier | 0950-0618 | |
dc.identifier | http://hdl.handle.net/11449/167916 | |
dc.identifier | 10.1016/j.conbuildmat.2015.07.108 | |
dc.identifier | 2-s2.0-84937562007 | |
dc.identifier | 2-s2.0-84937562007.pdf | |
dc.description.abstract | Abstract 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. | |
dc.language | eng | |
dc.relation | Construction and Building Materials | |
dc.relation | 1,607 | |
dc.rights | Acesso aberto | |
dc.source | Scopus | |
dc.subject | Auto-combustion | |
dc.subject | Cement paste | |
dc.subject | Lime paste | |
dc.subject | Mechanical properties | |
dc.subject | Microstructural characterization | |
dc.subject | Mortar | |
dc.subject | Portland cement | |
dc.subject | Pozzolanic reactivity | |
dc.subject | Sugar cane straw ash | |
dc.title | Assessment of sugar cane straw ash (SCSA) as pozzolanic material in blended Portland cement: Microstructural characterization of pastes and mechanical strength of mortars | |
dc.type | Artículos de revistas | |