Published September 1, 1992 | Version v1
Patent Metadata-only

Nuclear gauge with compensation for sample of insufficient neutron moderating activity

Creators

Description

Method and apparatus for determining the asphalt content of a bituminous paving mix wherein Marshall plug samples of the bituminous paving are subjected to a neutron source and the neutrons that are thermalized by hydrogen nuclei present in the Marshall plug sample are detected and counted to provide an indication of the asphalt content of the sample. A neutron moderating substance, such as a polyethylene sample holder having receptacles for closely fitting the Marshall plug samples, is included with the sample pan to increase the number of thermalized neutron resulting from the interaction of neutrons with hydrogen nuclei present in the sample

Availability note (English)

Available from the Patents Office, Private Bag X400, Pretoria, 0001, South Africa.

Additional details

Publishing Information

Imprint Pagination
22 p.
IPC:
Int. Cl. G 01 T; C 08 L.
IPC
Int. Cl. G 01 T; C 08 L.
Patent number
ZA patent document 92/0935/A/

INIS

Country of Publication
South Africa
Country of Input or Organization
South Africa
INIS RN
25013742
Subject category
S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
Resource subtype / Literary indicator
Non-conventional Literature
Descriptors DEI
ASPHALTS; EQUIPMENT; HYDROGEN; NEUTRON SOURCES; NEUTRONS; PAVEMENTS; SAMPLE HOLDERS
Descriptors DEC
BARYONS; BITUMENS; ELEMENTARY PARTICLES; ELEMENTS; FERMIONS; HADRONS; NONMETALS; NUCLEONS; ORGANIC COMPOUNDS; OTHER ORGANIC COMPOUNDS; PARTICLE SOURCES; RADIATION SOURCES; TAR

Optional Information

Secondary number(s)
US priority 656959.