This study focuses on the influence of biochar – a solid, porous, carbonaceous material product resulting from biomass gasification of wood waste – on mechanical properties of cement mortars. In order to investigate its effectiveness for structural purposes, biochar is added in cement mortar in increasing percentages, up to 2.5% by weight of cement. Experimental findings show that, by including a proper biochar percentage, compressive and flexural strengths comparable to those of control specimens are obtained, with a slight increase in fracture energy. The use of biochar in building materials as carbon sink is also part of a strategy for the development of more sustainable materials within the construction industry, since the dual aim of storing carbon in a stable form in buildings and promoting waste reutilization by increasing the recycling rate could be achieved.
Mechanical characterization of cement-based materials containing biochar from gasification / Sirico, A.; Bernardi, P.; Belletti, B.; Malcevschi, A.; Dalcanale, E.; Domenichelli, I.; Fornoni, P.; Moretti, E.. - In: CONSTRUCTION AND BUILDING MATERIALS. - ISSN 0950-0618. - 246(2020), pp. 118490.1-118490.11. [10.1016/j.conbuildmat.2020.118490]
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