Specific Design of a Self-Compacting Concrete with Raw-Crushed Wind-Turbine Blade

• DOI: 10.3390/jcs8120540
• Publication Date: 2024-12-19T15:54:20Z
• Authors: Manuel Hernando-R...; Víctor Revilla-Cu...; Nerea Hurtado-Alonso; Javier Manso-Morato; Vanesa Ortega-López
• Keywords: Superplasticizer; Crushed stone

Wind-turbine blades pose significant disposal challenges in the wind-energy sector due to increasing demand for wind farms. Therefore, this study researched revaluation of Raw-Crushed Wind-Turbine Blade (RCWTB), obtained through a non-selective blade crushing process, as partial substitute aggregates Self-Compacting Concrete (SCC). The aim was determine most adequate water/cement (w/c) ratio and amount superplasticizing admixtures required achieve flowability 7-day compressive strength SCC proportions RCWTB, production more than 40 mixes. results reported that RCWTB additions decreased slump flow by 6.58% per 1% on average, well strength, although minimum value 25 MPa always reached. Following multi-criteria decision-making analysis, w/c 0.45 superplasticizer content 2.8% cement mass were optimum produce with up 2% RCWTB. A 0.50 an superplasticizers 4.0% 4.6% 3% 4% respectively. mixes containing 5% did not self-compacting properties under any design condition. All modifications mix showed statistically effects according analysis variance at confidence level 95%. Overall, confirms incorporation into careful is feasible terms opening new research avenue recycling wind-turbine component.