https://hdl.handle.net/10259/7105 2026-04-28T13:59:17Z https://hdl.handle.net/10259/10284 Recycled Self-Compacting Concrete: Mechanical Behavior and Durability Revilla Cuesta, Víctor; Skaf Revenga, Marta; Chica Páez, José Antonio; Serrano López, Roberto; Ortega López, Vanesa Increasing sustainability is currently one of the main objectives of the construction sector. One of the most widespread sustainable practices to reach this goal is the recycling of industrial residues within concrete mixes. What began as a practice to produce low-quality concrete has now spread, for example, to Self-Compacting Concrete (SCC), which has a high flowability in the fresh state. Recycled Concrete Aggregate (RCA) is a waste that can be used to develop SCC of good mechanical performance. RCA produced from the crushing of rejected precast components for the prefabricated concrete industry is assessed in this study. It was demonstrated that the addition of 100 % coarse RCA and 50 % fine RCA contributed to the production of an SCC with adequate flowability and an optimal mechanical and durability behavior. To do so, the design of the mixture, its flowability, its strength behavior at different curing ages and its performance in freeze/thaw, moist/dry and sulfate-attack tests are discussed. The study is complemented by analyzing the interaction of RCA with different natural fine aggregates, such as siliceous or limestone sand. It is concluded that the SCC developed with large amounts of RCA was of sufficient strength and durability for general usage. Comunicación escrita presentada en: Fifteenth International Conference on Recent Advances in Concrete Technology and Sustainability Issues (RACTSI) 2022, durante los días 10-15 de julio en Milán (Italia). 2022-07-01T00:00:00Z https://hdl.handle.net/10259/10277 Durability in abrasion terms of a full-scale porous bituminous mixture manufactured with ladle furnace slag Revilla Cuesta, Víctor; Hurtado Alonso, Nerea; Manso Morato, Javier; Pasquini, Emiliano; Skaf Revenga, Marta; Manso Villalaín, Juan Manuel A research experience on the construction of a pilot road section with a porous asphalt mixture incorporating Ladle Furnace Slag (LFS) as fine aggregate in its composition is reported. The pilot section consisted of overlaying this mixture on existing bituminous pavement and was intended to simulate a real application of this sustainable construction material. Along with the paving, quality control was conducted to ensure that this mixture complied with the requirements of the current regulations for its use. This quality control included a durabilityperformance study. Thus, water-sensitivity, accelerated-aging and frost-exposure tests from an abrasion-resistance approach were conducted on Marshall specimens compacted with 50 blows per face. The values obtained were compared with the abrasion resistance of unaged specimens. The results of the tests were generally in accordance with the applicable regulations, the full-scale porous asphalt mix with LFS exhibiting an adequate durability performance in terms of abrasion resistance. Comunicación oral presentada en: Sixth International Conference on Sustainable Construction Materials and Technologies (SCMT6) 2024, durante los días 9-13 de junio en Lyon (Francia). 2024-01-01T00:00:00Z https://hdl.handle.net/10259/10262 Study of Clayey Soils Stabilized with Ladle Furnace Slag as Alternative Binder for Use in Road Works Espinosa González, Ana Belén; Revilla Cuesta, Víctor; López Ausín, Víctor; Serrano López, Roberto; Fiol Olivan, Francisco Steelmaking industry generates a large volume of by-products that not always can be reintroduced into production processes, such as the steelmaking process itself or the production of cement. This is the case of ladle furnace slag (LFS), whose potential use is limited and usually ends up in landfill. This work investigates the feasibility of using LFS as binder for clayey soils stabilization in substitution of lime. The main parameters evaluated are plasticity index, California Bearing Ratio (CBR) and Unconfined Compressive Strength (UCS). The results show that the strength behavior of the mixtures is remarkable, obtaining increases in the CBR index between 8-14 times above unmodified clays. The mechanical performance base on UCS results show improvements of 85 % relative to natural soils three days after mixing. Moreover, if the curing time is up to 90 days, the UCS doubles or triples its value. Depending on the chemical composition of the soils, the performances of the mixtures are different, but in all cases the results are positive and encourage further research for the incorporation of ladle furnace slag as stabilizing agent. Comunicación oral virtual presentada en: The 7th International Conference on Building Materials and Construction (ICBMC), celebrada de forma online en Singapur en marzo de 2022. 2022-08-01T00:00:00Z https://hdl.handle.net/10259/10261 Research on Sustainable Bituminous Mixture for Permeable Wearing Layers in Road Pavements Skaf Revenga, Marta; Ortega López, Vanesa; Espinosa González, Ana Belén; Revilla Cuesta, Víctor; Manso Villalaín, Juan Manuel A surface layer of permeable bituminous mixture has been laid on an existing pavement section. This layer, in addition to providing the pavement with draining characteristics and acoustic comfort, incorporates a residue that is difficult to apply, the ladle furnace steel slag. The tests carried out show that the designed mixture meets the requirements in terms of mechanical properties, resistance to the action of water, and porosity. Furthermore, in-situ tests on the completed layer demonstrate its excellent permeability, as well as a surface texture suitable for use on roads and highways. The introduction of the ladle furnace slag makes it possible to design a high-performance, but also environmentally sustainable, mix. Comunicación oral virtual presentada en: The 7th International Conference on Building Materials and Construction (ICBMC), celebrada de forma online en Singapur en marzo de 2022. 2022-08-01T00:00:00Z