In the present paper, the results of an experimental campaign concerning the long-term properties of self-compacting concrete are presented. Five mixes of SCC and one mix of CVC have been employed, with different compressive strength covering the range of application from cast-in-place to prestressed structures. For each mix, compressive strength, elastic modulus and shrinkage evolution with time have been monitored. Creep tests have also been performed at different stress levels and at two ages at loading (7 and 28 days). The influence of concrete strength, stress level have been observed, together with the role played by the mix parameters. The Poisson’ ratio evolution with time has been also observed; the role played by the application of long term loads and by different curing conditions on the concrete residual strength has been also investigated. Finally, experimental data both in terms of shrinkage and creep are compared with international code provisions.

An Experimental Campaign on the Long-Term Properties of Self Compacting Concrete

MAZZOTTI, CLAUDIO;SAVOIA, MARCO
2012

Abstract

In the present paper, the results of an experimental campaign concerning the long-term properties of self-compacting concrete are presented. Five mixes of SCC and one mix of CVC have been employed, with different compressive strength covering the range of application from cast-in-place to prestressed structures. For each mix, compressive strength, elastic modulus and shrinkage evolution with time have been monitored. Creep tests have also been performed at different stress levels and at two ages at loading (7 and 28 days). The influence of concrete strength, stress level have been observed, together with the role played by the mix parameters. The Poisson’ ratio evolution with time has been also observed; the role played by the application of long term loads and by different curing conditions on the concrete residual strength has been also investigated. Finally, experimental data both in terms of shrinkage and creep are compared with international code provisions.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/120549
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