ASTM C1196

Full Name

ASTM C1196 – Standard Test Method for In Situ Compressive Stress Within Solid Unit Masonry Estimated Using Flatjack Measurements


This test method covers the determination of the average compressive stress in existing unreinforced solid-unit masonry.

This test method concerns the measurement of in-situ compressive stress in existing masonry by use of thin, bladder-like flatjack devices that are installed in cut mortar joints in the masonry wall.

This test method provides a relatively non-destructive means of determining masonry properties in place.


compressive stress; flatjack; in situ; masonry; nondestructive evaluation