Apparatus and method for measuring the expansion properties of a cement composition

Patent · Sat Jan 01 00:00:00 EST 1983

OSTI ID:864725

Spangle, Lloyd B ^[1]

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1. Claremore, OK

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.

• DOE Contract Number: EG-77-C-02-4190
• Assignee: Dow Chemical Company (Midland, MI)
• Patent Number(s): US 4408489
• OSTI ID: 864725
• Country of Publication: United States
• Language: English

Related Subjects

apparatus
method
measuring
expansion
properties
cement
composition
disclosed
useful
semi-solid
materials
expand
solid
phase
curing
compositions
sleeve
preferably
cylindrical
vertical
slit
allow
mounted
outside
sets
pins
consisting
set
located
opposite
procedure
filled
wet
cured
cures
causes
represents
factor
calculated
distance
empty
expands
cement composition
solid materials
solid material
solid phase
expansion properties
vertical slit
/73/