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Título: | New developments in low clinker cement paste mineralogy |
Autor: | Frías, Moisés CSIC ORCID ; Vigil de la Villa, Raquel; García-Giménez, Rosario; Martínez-Ramírez, S. CSIC ORCID ; Fernández-Carrasco, Lucía CSIC ORCID | Palabras clave: | Mineralogy Hydrated phases |
Fecha de publicación: | 2018 | Editor: | Elsevier | Citación: | Applied Clay Science 166: 94–101 (2018) | Resumen: | The use of industrial waste as a cement addition often changes the composition and development of the hydrated phases and with them matrix performance and durability, in particular at later ages. The effect of the presence in blended cement of 20% to 50% kaolinite based activated carbon waste (ACW) on paste hydration has been characterized by means of XRD, SEM/EDX, TG/DTG, NMR and FTIR to identify and monitor the mineralogical phases forming in materials at ages of up to 180 d. The results showed that the main reaction products forming in the first 7 d included C-S-H gels, C4ACH12 and C4AH13 (hydroxy-AFm). Whilst monocarboaluminate (Mc) content declined with rising percentages of ACW, the amount of hexagonal phase hydroxy-AFm rose. Then microstructure of the C-S-H gels developing in the OPC and the 50% additioned paste differed. Compact C-S-H gel plates, and phyllosilicate-like laminar spongy microplates with high polymerised C-S-H gel formed in the blended cement paste. | Versión del editor: | https://doi.org/10.1016/j.clay.2018.09.009 | URI: | http://hdl.handle.net/10261/173142 | DOI: | 10.1016/j.clay.2018.09.009 | ISSN: | 0169-1317 |
Aparece en las colecciones: | (IETCC) Artículos |
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