In the eld of sustainable construction materials, the production of eco-friendly concretes, obtained by the addition of waste products such as biochar and recycled polymer particles, others interesting alternatives to traditional materials. Biochar is a carbonaceous solid by-product obtained from the thermo-chemical conversion of biomass and its addition into concrete admixtures can oer an eco-friendly carbon sequestration solution, capable to slightly improve the concrete fracture energy. Recycled polymer materials can be used to partially replace conventional aggregates in the preparation of lighter concretes helping to face the disposal challenge presented by this non-degradable plastic waste. However, for both concrete types the influence of these additions on the corrosion behaviour of embedded steel rebars is still unexplored. Within this context, this work presents the first results in terms of corrosion potential and polarization resistance measurements and electrochemical impedance spectroscopy analysis, of an extensive study dealing with the reinforcement corrosion resistance during cyclic exposures to chloride-containing solutions.
Durability of reinforced concretes containing biochar and recycled polymers / Zanotto, F.; Sirico, A.; Merchiori, S.; Vecchi, F.; Balbo, A.; Bernardi, P.; Belletti, B.; Malcevschi, A.; Grassi, V.; Monticelli, C.. - (2021), pp. 79-79. (Intervento presentato al convegno ENGINEERED MATERIALS FOR SUSTAINABLE STRUCTURES (EM4SS21) tenutosi a Modena (online) nel 26 April 2021 – 28 April 2021).
Durability of reinforced concretes containing biochar and recycled polymers
A. Sirico;F. Vecchi;P. Bernardi;B. Belletti;A. Malcevschi;
2021-01-01
Abstract
In the eld of sustainable construction materials, the production of eco-friendly concretes, obtained by the addition of waste products such as biochar and recycled polymer particles, others interesting alternatives to traditional materials. Biochar is a carbonaceous solid by-product obtained from the thermo-chemical conversion of biomass and its addition into concrete admixtures can oer an eco-friendly carbon sequestration solution, capable to slightly improve the concrete fracture energy. Recycled polymer materials can be used to partially replace conventional aggregates in the preparation of lighter concretes helping to face the disposal challenge presented by this non-degradable plastic waste. However, for both concrete types the influence of these additions on the corrosion behaviour of embedded steel rebars is still unexplored. Within this context, this work presents the first results in terms of corrosion potential and polarization resistance measurements and electrochemical impedance spectroscopy analysis, of an extensive study dealing with the reinforcement corrosion resistance during cyclic exposures to chloride-containing solutions.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
