Measuring and testing – Specimen stress or strain – or testing by stress or strain... – By loading of specimen
Patent
1992-08-14
1994-07-05
Williams, Hezron E.
Measuring and testing
Specimen stress or strain, or testing by stress or strain...
By loading of specimen
73794, 73841, G01N 310, G01N 324
Patent
active
053257227
ABSTRACT:
A method and apparatus for determining the stress-slip relationship of specimens in concrete including a pipe with a plurality of longitudinal slots evenly spaced around the circumference of the pipe, a specimen and concrete block located in one end of the pipe, a confining device for applying a constant force to the circumference of the concrete block before, during and after a test, a device for measuring the displacement of the specimen relative to the concrete block, and a device for measuring the radial displacement of the concrete block.
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Forrest, Jr. John L.
Kalmbaugh David
Kwok Helen C.
Sliwka Melvin J.
The United States of America as represented by the Secretary of
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