Recently, within the field of new cementitious building materials development, there has been a growing interest in the use of biochar, which represents the solid by-product resulting from biomass pyrolysis or gasification processes. The addition of biochar particles into concrete admixtures can offer an ecofriendly carbon sequestration solution while possibly improving concrete mechanical properties. However, the role of biochar on durability of concrete and steel corrosion is still unexplored. Within this context, this work presents the first results in terms of corrosion potentials (Ecor) polarization resistance (Rp) measurements and electrochemical impedance spectroscopy (EIS) recording, of an extensive study on the influence of biochar as a concrete additive during wet and dry (w/d) exposures in saturated Ca(OH)2 solution, containing 0.1 N CaCl2.
Durability of reinforced concrete containing biochar / Zanotto, F.; Sirico, A.; Vecchi, F.; Balbo, A.; Bernardi, P.; Belletti, B.; Malcevschi, A.; Grassi, V.; Merchiori, S.; Monticelli, C.. - ELETTRONICO. - (2021), pp. 65-72. (Intervento presentato al convegno CACRCS DAYS 2020 - 2nd Workshop on Capacity Assessment of Corroded Reinforced Concrete Structures tenutosi a Virtual, online nel 1-4 December).
Durability of reinforced concrete containing biochar
Sirico A.;Vecchi F.;Bernardi P.;Belletti B.Investigation
;Malcevschi A.;
2021-01-01
Abstract
Recently, within the field of new cementitious building materials development, there has been a growing interest in the use of biochar, which represents the solid by-product resulting from biomass pyrolysis or gasification processes. The addition of biochar particles into concrete admixtures can offer an ecofriendly carbon sequestration solution while possibly improving concrete mechanical properties. However, the role of biochar on durability of concrete and steel corrosion is still unexplored. Within this context, this work presents the first results in terms of corrosion potentials (Ecor) polarization resistance (Rp) measurements and electrochemical impedance spectroscopy (EIS) recording, of an extensive study on the influence of biochar as a concrete additive during wet and dry (w/d) exposures in saturated Ca(OH)2 solution, containing 0.1 N CaCl2.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
