Measuring and testing – Liquid analysis or analysis of the suspension of solids in a... – Content or effect of a constituent of a liquid mixture
Patent
1978-01-20
1980-04-08
Ciarlante, Anthony V.
Measuring and testing
Liquid analysis or analysis of the suspension of solids in a...
Content or effect of a constituent of a liquid mixture
73 73, G01N 1500
Patent
active
041966147
ABSTRACT:
A process and associated meter devices which will provide accurate and rapid measurement of the quantitites of cement and water in a sample of fresh concrete. A special volumetric flask is filled with a sample of fresh concrete to a known volume. The volumetric flask and its contents are then attached to the hollow body of a shaker meter which forms an extension of the upper part of the volumetric flask. A predetermined volume of special mixing liquid with precisely known density different than water is then added and thoroughly mixed with the concrete sample by shaking. A portion of the resulting cement-water-mixing liquid suspension, or liquor, is then poured off and strained into a vial where its relative density, which is a function of the amount of each constituent present, is determined by a special hydrometer. Another portion of the resulting suspension, or liquor, is filtered through a suitable paper, or other material, so that all cement is removed. The relative density of the filtrate is a function only of the amounts of free water and mixing liquid present in the original concrete sample and their densities. The same special hydrometer is used to measure the density of the filtrate and particular equations which have been developed for use in this invention can then be applied to accurately determine the amounts of cement and water contained in the original concrete sample.
REFERENCES:
patent: 2357083 (1944-08-01), Clagett
patent: 2372595 (1945-03-01), Maxon
Ciarlante Anthony V.
Roberts John T.
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