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Title: Laboratory Tests on Vibration of Concrete

Author(s): Sven G. Bergstrom

Publication: Journal Proceedings

Volume: 49

Issue: 6

Appears on pages(s): 893-908

Keywords: no keywords

Date: 6/1/1953

A brief survey of tests dealing with pressures, displacements, and energy consumption in fresh concrete compacted by internal vibration. Three methods of determining the radius of action of the internal vibrator and the effects of variation in the radius of action with the concrete mix and with the vibrator characteristics are discussed. A graph presents some data on the energy consumption during vibration. Described is an apparatus for studying variations in the properties of fresh concrete with time of vibration. The type of these variations characterizes the fresh concrete in respect to required time of vibration and liability to segregation. Mention is made of a few test results concerning the relation between properties of hardened concrete and time of vibration.


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