Apparatus and method for measuring the expansion properties of a

Details Apparatus and method for measuring the expansion properties of a Apparatus and method for measuring the expansion properties of a

1982-01-11

1983-10-11

Ciarlante, Anthony V.

Measuring and testing

Miscellaneous

G01N 3338, G01N 3344

Patent

active

044084897

ABSTRACT:
An apparatus is disclosed which is useful for measuring the expansion properties of semi-solid materials which expand to a solid phase, upon curing, such as cement compositions. The apparatus includes a sleeve, preferably cylindrical, which has a vertical slit on one side, to allow the sleeve to expand. Mounted on the outside of the sleeve are several sets of pins, consisting of two pins each. The two pins in each set are located on opposite sides of the slit. In the test procedure, the sleeve is filled with wet cement, which is then cured to a solid. As the cement cures it causes the sleeve to expand. The actual expansion of the sleeve represents an expansion factor for the cement. This factor is calculated by measuring the distance across the pins of each set, when the sleeve is empty, and again after the cured cement expands the sleeve.

REFERENCES:
patent: 3779085 (1973-12-01), Rice

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