RT Conference Proceedings
T1 Synergistic Effect of CDWs as Eco-Pozzolans: 												Ternary Cements
A1 Vigil de la Villa, Raquel
A1 García-Giménez, Rosario
A1 Frías, Moisés
A1 Martínez Ramírez, Sagrario
A1 Fernández-Carrasco, Lucía
A1 Lahoz Ruiz, Eduardo
A1 Moreno-Juez, Jaime
A1 Vegas-Ramiro, Iñigo
A2 Coffetti, Denny
A2 Coppola, Luigi
A2 Holland, Terence
AB Sustainable development and circular economy policies currently prioritize the recovery of industrial waste and rubble as secondary raw materials. CDWs fine fractions of concrete nature are focusing special attention due to their accumulation, subjected to weather conditions and without any industrial application at present. These wastes have little pozzolanic activity which is why it is necessary to combine it with other active additions for the ternary cements manufacture. In the present, a laminar glass waste from the deconstruction has been selected in order to obtain the binary mix. A binary mixture of pozzolan recycled concrete/glass with a 1:2 ratio has been prepared to evaluate the synergy of both wastes in the pozzolanic reaction, and its possible commercialization for future ternary cements that are more sustainable. The characterization of materials and reaction kinetics mainly in the ternary pastes have been characterized by XRF, ICP/MS, NMR, FTIR, XRD-Rietveld and SEM/EDX, detecting calcite, quartz, mica, feldspar and clay minerals and as hydrated phases ettringite, aluminates and C-S-H gels. According to these results, it can be highlighted that from the scientific point of view, this mixture of pozzolans from CDWs are viable for use as ecoefficient pozzolans for the more sustainable ternary cements.
PB American Concrete Institute
SN 9781641951845
SN 0193-2527
YR 2022
FD 2022-07-01
LK https://hdl.handle.net/11556/1904
UL https://hdl.handle.net/11556/1904
LA eng
NO Vigil de la Villa , R , García-Giménez , R , Frías , M , Martínez Ramírez , S , Fernández-Carrasco , L , Lahoz Ruiz , E , Moreno-Juez , J & Vegas-Ramiro , I 2022 , Synergistic Effect of CDWs as Eco-Pozzolans : Ternary Cements . in D Coffetti , L Coppola & T Holland (eds) , Recent Advances in Concrete Technology and Sustainability Issues - Conference Proceedings, 15th International Conference . American Concrete Institute, ACI Special Publication , vol. SP-355 , American Concrete Institute , pp. 485-494 , 15th International Conference on Recent Advances in Concrete Technology and Sustainability Issues , Milan , Italy , 13/07/22 .
NO conference
NO Publisher Copyright: © 2022 American Concrete Institute. All rights reserved.
NO This research was funded by Spain’s Ministry of Science, Innovation and Universities under National Project RTI2018-097074-B-C21 and C22, the EU’s ERDF, Spanish State Research Agency (AEI), Spanish Association for the Recycling of Construction and Demolition Waste (RCD), Sika (Madrid, Spain) and Spanish Institute of Cement and its Applications (IECA).
DS TECNALIA Publications
RD 26 jul 2024