Method of and an arrangement for measuring the properties of a s

Details Method of and an arrangement for measuring the properties of a s Method of and an arrangement for measuring the properties of a s

1989-10-06

1990-10-02

Chapman, John

Measuring and testing

With fluid pressure

Porosity or permeability

G01N 1508, G01N 3338

Patent

active

049599941

ABSTRACT:
The invention relates to a method and an arrangement for measuring the properties, particularly the degree of compaction of a stiff compactable mass such as fresh concrete, to be cast or a similar soil mass. In order to make the control of compaction more effective, gaseous pressure fluid is blown through the mass during the compaction of the mass, simultaneously, observing increases in the pressure of the gaseous pressure fluid in the surface portions of the mass due to increased flow resistance. The pressure fluid is blown through an opening formed in a wall adjoining the mass to be compacted and by means of a source of pressure fluid connected to the opening. Changes in the flow resistance are measured by means of a measuring device.

REFERENCES:
patent: 3335787 (1967-08-01), Dietert et al.

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