Portable asphalt stress and strain measuring device

Details Portable asphalt stress and strain measuring device Portable asphalt stress and strain measuring device

1992-10-16

1993-09-28

Cuchlinski, Jr., William A.

Thermal measuring and testing

Thermal testing of a nonthermal quantity

374 56, 73787, G01N 2500

Patent

active

052482006

ABSTRACT:
A thermally stable fixture for testing asphalt samples is characterized by easurements of both thermal stresses and strains in the sample. The device uses air as the sample cooling or heating fluid for inducing thermal stresses and strains therein. Strains are detected by a linear variable differential transformer mounted on the sample suspended within the fixture. Stresses are detected by a load cell connected with a mounting plate for the sample. Temperatures are detected by temperature sensors attached to the sample and to the fixture for measuring sample and ambient air temperatures, respectively.

REFERENCES:
patent: 3554019 (1971-01-01), Van Den Hove et al.
patent: 3733049 (1973-05-01), Van Den Hove et al.
patent: 4056973 (1977-11-01), Prevorsek et al.
patent: 4266424 (1981-05-01), Muenstedt
patent: 4700577 (1987-10-01), Tripp
patent: 4798477 (1989-01-01), Mountain
patent: 4923307 (1990-05-01), Gilmore et al.
patent: 5009512 (1991-04-01), Lessi et al.

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