Method of determining density

Details Method of determining density Method of determining density

1981-01-23

1983-06-21

Byers, Jr., Nile C.

Road structure, process, or apparatus

Process

In situ treatment of earth or roadway

250308, E01C 718, E01C 2300

Patent

active

043891365

ABSTRACT:
An in situ non destructive method employing a radiation device to rapidly determine the density of very thin top layers of material independently of the underlying base material comprising of the steps of: measuring the density D.sub.b of the base layer with an radiation measuring device, determining the thickness t of the top layer, measuring the density D.sub.g of the composite with the radiation measuring device, and determining the density of the top layer from the expression: ##EQU1##

REFERENCES:
patent: 2897734 (1959-08-01), Bodine
patent: 3252389 (1966-05-01), Gardner
patent: 3599543 (1971-08-01), Kerridge
patent: 4079237 (1978-03-01), Schlesinger
patent: 4113403 (1978-09-01), Tertinek
patent: 4140906 (1979-02-01), Morrison

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