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Rheological properties of evolutive materials monitored by an acoustic test

Arnaud L., Thinet S.

Applied Mechanics and Engineering

1999

Vol. 4, no spec.

39-44

The rheological behaviour of setting heterogeneous materials is studied by means of an experimental device. It is based on the propagation of acoustic waves at low frequency (100Hz-1kHz). It enables to follow up material setting, and hardening phases and to quantify by an inverse analysis, the evolution of the complex viscoelastic modulus from the fluid to the solid phase. Different rheological evolutions are presented for various formulations of hydraulic concrete and bituminous mix.