Measurement of the Workability of Concrete
U. T. Meyer
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this iinvestigation examines the measurement of the workability of a concrete mass. The concrete was compacted on a vibrating table and the compaction recorded. The area under the resulting curve was measured with a planimeter. This area is a realiable measure for the useful part of the applied work. The area at the end of the compaction is so small that any prolonged vibration, or uncertainty about the endpoint of the compaction period, have practically no influence on the result, and that was the deciding point in developing and using this workability test method. To compare these results with usual workability tests, the slump and the Vebeseconds of each concrete were measured.