Corrosion of steel in concrete is a worldwide economical, social and safety problem. In order to investigate about influence of type of reinforcement, 48 specimens have been exposed to 3.5 wt% sodium chloride solution and a cathodic current has been imposed to accelerate corrosion process. After about one year, six of them have been tested in order to evaluate the loss of load-bearing capacity. Reinforcement bar diameter loss has been evaluated by performing gravimetric measurement. Three different kinds of bars have been used: non-ribbed bars, ribbed bars and ribbed galvanized bars in order to simulate “old” structures, “modern” structures and a possible way to build “more durable” structures, respectively.
Influence of the type of reinforcement on load bearing capacity of corroded reinforced concrete structures / Bossio, Antonio; Lignola, GIAN PIERO; Monetta, Tullio; Prota, Andrea; Bellucci, Francesco; Cosenza, Edoardo; Manfredi, Gaetano. - (2014), pp. 7842_1-7842_10. (Intervento presentato al convegno EUROCORR 2014 tenutosi a Pisa nel 8-12 Settembre 2014).
Influence of the type of reinforcement on load bearing capacity of corroded reinforced concrete structures
BOSSIO, ANTONIO
;LIGNOLA, GIAN PIERO;MONETTA, tullio;PROTA, ANDREA;BELLUCCI, FRANCESCO;COSENZA, EDOARDO;MANFREDI, GAETANO
2014
Abstract
Corrosion of steel in concrete is a worldwide economical, social and safety problem. In order to investigate about influence of type of reinforcement, 48 specimens have been exposed to 3.5 wt% sodium chloride solution and a cathodic current has been imposed to accelerate corrosion process. After about one year, six of them have been tested in order to evaluate the loss of load-bearing capacity. Reinforcement bar diameter loss has been evaluated by performing gravimetric measurement. Three different kinds of bars have been used: non-ribbed bars, ribbed bars and ribbed galvanized bars in order to simulate “old” structures, “modern” structures and a possible way to build “more durable” structures, respectively.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.