论文信息 - A unique experimental method for monitoring aggregate settlement in concrete

A unique experimental method for monitoring aggregate settlement in concrete

Abstract A unique experimental method for monitoring the settlement of aggregate in fresh concrete is introduced and demonstrated. Using nuclear medicine techniques, real-time images of aggregate settlement due to vibration are obtained. These images are used to study the rheological properties of the vibrated concrete mix. The technique developed allows the experimental verification of a number of assumptions regarding the rheology of fresh concrete and the implications of the accepted rheological model of fresh concrete. Additionally, the effects of vibration on aggregate settlement are clearly shown, including effects resulting from the location of the vibrator and the size and density of the aggregate.

Michael F. Petrou | Kent A. Harries | Francis Gadala-Maria | Venkata Giri Kolli

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