Concerning the structural retrofit of reinforced concrete existing buildings, the in-depth structural analysis is of fundamental importance to perform an effective project planning. Such high-level of analysis can be achieved through an appropriate survey of the construction and an extensive characterization of materials. However, the acquisition of these data could be often unfeasible and usually expensive. This is the case of either the fast-seismic vulnerability assessment (for which, tests on structural materials are generally not provided), or the feasibility study that occurs during the preliminary design stage. Consequently, a new procedure is introduced to estimate the mechanical proprieties of existing materials. It is based on some relationships between concrete strength and age of construction, which in turn are obtained by using the database stored at Politecnico di Torino. The latter covers almost 100 years of tests performed on samples made of concrete and steel. The strength-for-age curves are herein compared with the properties of materials measured on concrete cores extracted from a series of existing school buildings in the province of Torino.

Relationship between concrete strength and age of construction - the case of school buildings in the Province of Torino / Fantilli, Alessandro Pasquale; Mancinelli, Oscar; Chiaia, Bernardino. - ELETTRONICO. - (2021), pp. 833-839. ((Intervento presentato al convegno ITALIAN CONCRETE DAYS 2020 tenutosi a Napoli nel 14-16 Aprile 2021.

Relationship between concrete strength and age of construction - the case of school buildings in the Province of Torino

Alessandro Fantilli;Oscar mancinelli;Bernardino Chiaia
2021

Abstract

Concerning the structural retrofit of reinforced concrete existing buildings, the in-depth structural analysis is of fundamental importance to perform an effective project planning. Such high-level of analysis can be achieved through an appropriate survey of the construction and an extensive characterization of materials. However, the acquisition of these data could be often unfeasible and usually expensive. This is the case of either the fast-seismic vulnerability assessment (for which, tests on structural materials are generally not provided), or the feasibility study that occurs during the preliminary design stage. Consequently, a new procedure is introduced to estimate the mechanical proprieties of existing materials. It is based on some relationships between concrete strength and age of construction, which in turn are obtained by using the database stored at Politecnico di Torino. The latter covers almost 100 years of tests performed on samples made of concrete and steel. The strength-for-age curves are herein compared with the properties of materials measured on concrete cores extracted from a series of existing school buildings in the province of Torino.
978-88-99916-11-4
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11583/2908472