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Hydration of C3S and Al-doped C3S in the presence of gypsum
dc.contributor.author | Neto, José da Silva Andrade | |
dc.contributor.author | Rodríguez, Erick D. | |
dc.contributor.author | Monteiro, Paulo J. M. | |
dc.contributor.author | Gómez-de-la-Torre, María de los Ángeles | |
dc.contributor.author | Kirchheim, Ana Paula | |
dc.date.accessioned | 2021-12-16T11:51:55Z | |
dc.date.available | 2021-12-16T11:51:55Z | |
dc.date.issued | 2022 | |
dc.identifier.citation | Cement and Concrete Research 152 (2022) 106686 | es_ES |
dc.identifier.uri | https://hdl.handle.net/10630/23441 | |
dc.description.abstract | A complete understanding of the effect of gypsum on the C3S hydration and the role of aluminum has not been achieved. The effects of gypsum (at 2.5 wt% and 5.0 wt%) on the hydration of tricalcium silicate (C3S) and aluminum-doped C3S (Al-C3S) hydration are assessed. Isothermal calorimetry, thermodynamic modeling, XRD, TGA, and 27Al and 29Si MAS-NMR were performed to analyze gypsum's influence on the hydration of C3S and Al- C3S. The inclusion of gypsum retarded the initial hydration (first 3 h) for both C3S and Al-C3S due to the interaction between the sulfate ions and C3S. In contrast, gypsum enhanced the hydration of both C3S and Al-C3S afterward. The removal of Al3+ ions of the pore solution by the formation of ettringite is not the mechanism behind the enhancement of C3S hydration by gypsum, which mainly results from changes in C-S-H morphology and increases in the ionic strength. | es_ES |
dc.description.sponsorship | CAPES (Coordination for the Improvement of Higher Education Personnel) [88882.439908/2019-01]. Spanish Junta de Andalucía [UMA18-FEDERJA-095 and P18-RT-720] Graduate Program in Civil Engineering: Construction and Infrastructure (PPGCI) of the Federal University of Rio Grande do Sul (UFRGS). CNPq (Brazilian National Council for Scientific and Technological Development) through the research fellowship PQ CNPq. | es_ES |
dc.language.iso | eng | es_ES |
dc.publisher | sciencedirect | es_ES |
dc.rights | info:eu-repo/semantics/embargoedAccess | |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/4.0/ | * |
dc.subject | Cemento | es_ES |
dc.subject | Sulfatos | es_ES |
dc.subject | Yeso | es_ES |
dc.subject.other | Cement hydration | es_ES |
dc.subject.other | Doped alite | es_ES |
dc.subject.other | Sulfate | es_ES |
dc.subject.other | Alite | es_ES |
dc.title | Hydration of C3S and Al-doped C3S in the presence of gypsum | es_ES |
dc.type | info:eu-repo/semantics/article | es_ES |
dc.centro | Facultad de Ciencias | es_ES |
dc.identifier.doi | https://doi.org/10.1016/j.cemconres.2021.106686 | |
dc.rights.cc | Attribution-NonCommercial-NoDerivatives 4.0 Internacional | * |
dc.type.hasVersion | info:eu-repo/semantics/submittedVersion | es_ES |