The OFITE Circular Cement Expansion Mold measures the expansion or shrinkage of a well cement. It has an external ring with a vertical slit on one side to allow it to expand. Before testing begins, the width of the gap is measured with a micrometer. Then, after curing, the gap is measured again.
The complete kit includes the mold, micrometer, micrometer stand, and carrying case. Click here to learn more.