Listar DQIIQ-Artículos, capítulos... por autor "43db3591-c87a-4e87-af88-2e86630fee96"
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Accelerated Carbonation of Vibro-Compacted Porous Concrete for Eco-Friendly Precast Elements
Merino-Lechuga, Antonio Manuel; González-Caro, Ágata; Fernández Ledesma, Enrique; Jiménez, José Ramón; Fernández Rodríguez, José María; Suescum-Morales, David (MDPI, 2023)This research studied the effect of accelerated carbonation in the physical, mechanical and chemical properties of a non-structural vibro-compacted porous concrete made with natural aggregates and two types of recycled ... -
Carbon Emission Evaluation of CO2 Curing in Vibro-Compacted Precast Concrete Made with Recycled Aggregates
Suescum-Morales, David; Fernández Ledesma, Enrique; González-Caro, Ágata; Merino-Lechuga, Antonio Manuel; Fernández Rodríguez, José María; Jiménez, José Ramón (MDPI, 2023)The objective of the present study was to explore three types of vibro-compacted precast concrete mixtures replacing fine and coarse gravel with a recycled/mixed concrete aggregate (RCA or MCA). The portlandite phase found ... -
Geopolymer concrete with treated recycled aggregates: Macro and microstructural behavior
Pawluczuk, Edyta; Kalinowska-Wichrowska, Katarzyna; Jiménez, José Ramón; Fernández Rodríguez, José María; Suescum-Morales, David (Elsevier, 2021)Geopolymer concrete is a more environmentally friendly alternative than conventional concrete because its production does not need cement. Instead, waste materials such as fly ash, rice husk ash, slag, etc. are used. This ... -
Mechanical behaviour of self-compacting concrete made with non-conforming fly ash from coal-fired power plants
Romero Esquinas, Álvaro; Fernández Ledesma, Enrique; Otero, R.; Jiménez, José Ramón; Fernández, José María (Elsevier, 2018)Currently, global sustainability depends on achieving integrated productivity in all economic sectors, making it possible to respond to the environmental challenges facing humanity at present. With the dual objective of ... -
Optimisation of mortar with Mg-Al-Hydrotalcite as sustainable management strategy lead waste
Lozano Lunar, Angélica; Álvarez, José Ignacio; Navarro-Blasco, Íñigo; Jiménez, José Ramón; Fernández Rodríguez, José María (MDPI, 2021)This study analyses how a Mg-Al-Hydrotalcite with carbonate in the interlayer influences the hydration of mortar allowing the management of lead waste (solid or liquid) in a cement-based material. First, the compatibility ... -
Performance of Sustainable Mortars Made with Filler from Different Construction By-Products
López Uceda, Antonio; Fernández Ledesma, Enrique; Jiménez, José Ramón; Fernández Rodríguez, José María (MDPI, 2022)One way to contribute to sustainability in the construction sector is through the incorporation of construction by-products from their own activities. This work intends to extend the possibilities for enhancement of these ... -
Preliminary Study of Recycled Aggregate Mortar for Electric Arc Furnace Dust Encapsulation
Ledesma, Enrique F.; Lozano Lunar, Angélica; Ferreira, Ruan L. S.; Fernández Rodríguez, José María; Jiménez, José Ramón (MDPI, 2021)This article shows the preliminary results of a study carried out to determine the technical feasibility of encapsulating a high percentage of EAFD in cement-based mortars manufactured with the fine fraction of recycled ... -
Promotion of Circular Economy: Steelwork Dusts as Secondary Raw Material in Conventional Mortars
Lozano Lunar, Angélica; Barbudo Muñoz, M. Auxiliadora; Fernández, J.M.; Jiménez, José Ramón (MDPI, 2018)Among the actions proposed by the European Union for the implementation of Circular Economy is the use of waste as a secondary raw material (SRM). During the fusion of the scrap, a steel dust is generated, named Electric ... -
Review of the Application of Hydrotalcite as CO2 Sinks for Climate Change Mitigation
Suescum-Morales, David; Jiménez, José Ramón; Fernández Rodríguez, José María (MDPI, 2022)In recent decades, the environmental impact caused by greenhouse gases, especially CO2, has driven many countries to reduce the concentration of these gases. The study and development of new designs that maximise the ... -
Ternary Blends for Self-Compacting Mortars Production Composed by Electric Arc Furnace Dust and Other Industrial by-Products
López Uceda, Antonio; Cantador Fernández, David; Raposeiro Da Silva, Pedro; Brito, Jorge de; Fernández Rodríguez, José María; Jiménez, José Ramón (MDPI, 2022)This study is framed within the circular economy model through the valorisation of industrial by-products. This research shows the results of producing self-compacting mortars (SCMs) with electric arc furnace dust (EAFD) ... -
The Performance of Concrete Made with Secondary Products—Recycled Coarse Aggregates, Recycled Cement Mortar, and Fly Ash–Slag Mix
Kalinowska-Wichrowska, Katarzyna; Pawluczuk, Edyta; Bołtryk, Michał; Jiménez, José Ramón; Fernández Rodríguez, José María; Suescum-Morales, David (MDPI, 2022)The properties of cement concrete using waste materials—namely, recycled cement mortar, fly ash–slag, and recycled concrete aggregate—are presented. A treatment process for waste materials is proposed. Two research experiments ... -
The role of pH on leaching of heavy metals and chlorides from electric arc furnace dust in cement-based mortars
Fernández Ledesma, Enrique; Lozano Lunar, Angélica; Ayuso Muñoz, Jesús; Pérez Galvín, Adela; Fernández, José María; Jiménez, José Ramón (Elsevier, 2018)Electric arc furnace dust (EAFD) presents a pollution hazard due to its heavy metal leachability. Its characterization is essential for recovery or disposal in hazardous waste landfills. The present work discusses the ... -
Use of Carbonated Water as Kneading in Mortars Made with Recycled Aggregates
Suescum-Morales, David; Jiménez, José Ramón; Fernández Rodríguez, José María (MDPI, 2022)The increased concern about climate change is revolutionising the building materials sector, making sustainability and environmental friendliness increasingly important. This study evaluates the feasibility of incorporating ... -
Use of Periodic Mesoporous Organosilica–Benzene Adsorbent for CO2 Capture to Reduce the Greenhouse Effect
Cantador Fernández, David; Esquivel, Dolores; Jiménez, José Ramón; Fernández Rodríguez, José María (MDPI, 2024)The CO2 adsorption of a phenylene-bridged ordered mesoporous organosilica (PMO–benzene) was analyzed. The maximum capture capacity was 638.2 mg·g−1 (0 °C and 34 atm). Approximately 0.43 g would be enough to reduce the ... -
Wastes as Aggregates, Binders or Additions in Mortars: Selecting Their Role Based on Characterization
Brazao Farinha, Catarina; Brito, Jorge de; Veiga, Rosário; Fernández, J.M.; Jiménez, José Ramón; Romero Esquinas, Álvaro (MDPI, 2018)The production of waste has increased over the years and, lacking a recycle or recovery solution, it is forwarded to landfill. The incorporation of wastes in cement-based materials is a solution to reduce waste deposition. ...