Method and apparatus to determine amount of gas and size of gas

Details Method and apparatus to determine amount of gas and size of gas Method and apparatus to determine amount of gas and size of gas

1988-09-29

1990-06-19

Noland, Tom

Measuring and testing

Gas content of a liquid or a solid

Particular separator

73 38, 73 61R, G01N 714, G01N 3338

Patent

active

049341766

ABSTRACT:
A method of determining the amount of air contained in a viscous building material, such as concrete or asphalt, is provided. A sample of the material is placed in a fluid-tight container and a vacuum is pulled. The air will expand causing the material to expand. The amount of expansion is measured, which expansion is a function of the amount of air in the material. Also, a technique is provided for determining the size of the voids caused by the air.

REFERENCES:
patent: 2635459 (1953-04-01), Gray
patent: 2668437 (1954-02-01), Patch
patent: 2722825 (1955-11-01), Meyer
patent: 2823540 (1958-02-01), Patch
patent: 2892343 (1959-06-01), Chace
patent: 3184957 (1965-05-01), Ellis et al.
patent: 4344316 (1982-08-01), Nasser
Ivey, D. L. et al., Air Void Systems in Ready-Mixed Concrete, In. J. of Materials, JMLSA, vol. 5, No. 2, pp. 492-522, Jun. 1970.

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