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Title: A Method Of Determining The Constituents Of Fresh Concrete

Author(s): W. M. Dunagan

Publication: Journal Proceedings

Volume: 26


Appears on pages(s): 202-210

Keywords: none

DOI: 10.14359/8153

Date: 12/1/1929

The test outlined in this paper makes available another solution to the problem of determining the constituents of fresh concrete. The solution offered is to take samples of the fresh concrete and determine the amounts of water, cement, and fine and coarse aggregate using the Archimedian principle of water displacement, eliminating all necessity for the drying of any of the constituents. The test can be run in about 15 min and at any time before the concrete has definitely hardened. Except for the initial weighing idone as soon as the sample is selected, the test can be deferred to any time within the setting period, for after the initial weighing of the sample any water lost is of no consequence since water in water weighs nothing.


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