RT Book, Section
T1 Chemical and Mechanical Characterization of a Novel CSA Blended Cement Based on CDW Inorganic Fractions
A1 Frías, Moisés
A1 Martínez-Ramírez, Sagrario
A1 Fernández-Carrasco, Lucía
A1 Giménez, Rosario García
A1 de la Villa, Raquel Vigil
A1 Monasterio, Manuel
A1 Moreno-Juez, Jaime
A1 Vegas-Ramiro, Iñigo J.
AB Cement is a construction material widely used to improve the socio-economic development of a society. However, for its production path, it needs significant amounts of raw materials (limestone, clay, bauxite, etc.), which is currently outside the Environmental Policies. For this reason, any alternative to manufacture sustainable eco-cement based on the circularity of industrial waste is a priority line for the cement sector. This work presents the characterisation results of a calcium sulfoaluminate cement clinkerized (CSA-L), in a laboratory muffle at 1250ºC for 60 min, by partial replacement of raw materials by different construction and demolitions wastes (CDW) from the fine fraction of concrete (<5 mm), deconstruction building laminated glass and recycled gypsum. Subsequently, its physical-mechanical behaviour (water demand, setting times, soundness, mechanical properties and microporosity) was analysed in an eco-blended cement made by combining 90% OPC and 10% CSA (commercial and clinkerized ones), as preliminary studies for the manufacture of eco-cement materials for 3D printing. The results obtained demonstrate the feasibility of using CDW as secondary raw materials for the formation of a CSA eco-cement, with a mineralogical composition consisting of 24% Ye’elimite (C4A3$), 6% Larnite (α-C2S) and 31% Brediggite (Ca7Mg(SiO4)4. This eco-CSA-L cement shows an enriched nature in Brediggite with respect to commercial CSA-C cement. The binary mixture of cements (OPC + 10% CSA-L) shows a rheological and mechanical behaviour close to the reference OPC.
PB Springer Science and Business Media B.V.
SN 2211-0844
YR 2023
FD 2023
LK https://hdl.handle.net/11556/2790
UL https://hdl.handle.net/11556/2790
LA eng
NO Frías , M , Martínez-Ramírez , S , Fernández-Carrasco , L , Giménez , R G , de la Villa , R V , Monasterio , M , Moreno-Juez , J & Vegas-Ramiro , I J 2023 , Chemical and Mechanical Characterization of a Novel CSA Blended Cement Based on CDW Inorganic Fractions . in RILEM Bookseries . RILEM Bookseries , vol. 44 , Springer Science and Business Media B.V. , pp. 14-22 . https://doi.org/10.1007/978-3-031-33187-9_2
NO Publisher Copyright: © 2023, The Author(s), under exclusive license to Springer Nature Switzerland AG.
NO Acknowledgments. This research is under a national project funded by the Spanish Ministry of Science, Innovation and Universities (MICIU), the Spanish National Research Agency (AEI) and the European Regional Development Fund (ERDF), grant number RTI2018-097074-B-C21/22. Also, to the Spanish Construction and Demolition Waste Recycling Association (RCDA) and the Spanish Institute of Cement and its Applications (IECA). This research is under a national project funded by the Spanish Ministry of Science, Innovation and Universities (MICIU), the Spanish National Research Agency (AEI) and the European Regional Development Fund (ERDF), grant number RTI2018-097074-B-C21/22. Also, to the Spanish Construction and Demolition Waste Recycling Association (RCDA) and the Spanish Institute of Cement and its Applications (IECA).
DS TECNALIA Publications
RD 2 sept 2024