Self-Compacting Recycled Concrete Using Biomass Bottom Ash
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AuthorCabrera, Manuel; Martínez-Echevarría Romero, María José; López Alonso, Mónica; Agrela, Francisco; Rosales, Julia
Biomass bottom ashSelf-compacting concreteMechanical behaviour
Cabrera, M.; Martinez-Echevarria, M.J.; López-Alonso, M.; Agrela, F.; Rosales, J. Self-Compacting Recycled Concrete Using Biomass Bottom Ash. Materials 2021, 14, 6084. https://doi.org/ 10.3390/ma14206084
SponsorshipFEDER/ Ministry of Science, Innovation and Universities—Agencia Estatal de Investigación (State Research Agency)/Valorisation of biomass bottom ash for sustainable construction applications (1264457-R)—BIOCEM
In recent years, the use of self-compacting concrete has been a great advantage and garnered undoubted interest in construction. Due to the environmental impact caused by the consumption of natural aggregates in the manufacture of concrete, a more sustainable approach is needed. An approach for more sustainable construction is to use industrial waste such as bottom ash from the combustion of biomass as a replacement for natural aggregates. This research aims to use biomass bottom ash as a replacement for natural sand (10%, 20% and 30% replacement); in addition, by utilizing a crushing process of the bottom ash, the ash has been used as a filler replacement (replacement 20%, 40% and 60%). The fresh and hardened properties have been evaluated according to the standard. The results show the feasibility of using biomass bottom ash in self-compacting concrete, providing a sustainable alternative in order to minimise environmental impacts related to the extraction and depletion of natural resources.