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Flat Jack Test
Flat Jack Test – Single and Double Flat Jack test

This test method concerns the measurement of in-situ masonry deformability properties in existing masonry by use of thin, bladder-like flat jack devices that are installed in saw cut mortar joints in the masonry wall.

Applications –
  • Determination of the average compressive stress in existing  masonry
  • Assessing the in-situ Compressive strength of masonry
 
Flat Jack Test
Flat Jack Test – Single and Double Flat Jack test