In the present paper, the results of an experimental campaign concerning the rheological properties of hardened self-compacting concrete are presented. Four mixes of self-compacting concrete have been employed, with different compressive strength. Strength levels have been selected to cover the range of application from cast-in-place to prestressed structures. For each mix, compressive strength and elastic modulus evolution with time have been monitored over a period of about one year. Creep tests have also been performed at two different stress levels, 35% and 55% of compressive strength, and at two different ages at loading (7 and 28 days). The influence of concrete strength, stress level and aging have been observed. Finally, experimental data are compared with international standard provisions.

COMPARISON BETWEEN LONG TERM PROPERTIES OF SELF COMPACTING CONCRETES WITH DIFFERENT STRENGTH

MAZZOTTI, CLAUDIO;CECCOLI, CLAUDIO
2008

Abstract

In the present paper, the results of an experimental campaign concerning the rheological properties of hardened self-compacting concrete are presented. Four mixes of self-compacting concrete have been employed, with different compressive strength. Strength levels have been selected to cover the range of application from cast-in-place to prestressed structures. For each mix, compressive strength and elastic modulus evolution with time have been monitored over a period of about one year. Creep tests have also been performed at two different stress levels, 35% and 55% of compressive strength, and at two different ages at loading (7 and 28 days). The influence of concrete strength, stress level and aging have been observed. Finally, experimental data are compared with international standard provisions.
SCC 2008: Challenges and Barriers to Application
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Mazzotti C.; Ceccoli C.
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11585/67517
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