Rectangular flat jack 58-D0567 series

semi-oval

In-situ stress, deformability and resistance feature of masonry can be determined by the flat jack method. The test is performed by making a cut to a uniform depth into the mortar courses and inserting the flat jack or couple of jacks, which are pressured to the desired level. Test modes • For stress determination a single flat jack must be used. • For deformability and resistance determination two flat jacks must be used. • The flat jacks have to be pressured and the strain measured using the Analog or Digital mode as follows: Analog measurement • The following accessories must be used: • 58-D0568/A Hydraulic pump with gauge. See accessories. • 58-D0567/RS Connecting hose (to connect the two jacks). See accessories. • 58-C230/30D Mechanical strain gauge. See accessories. Digital measurement The following accessories must be used: • 58-D0568 Hydraulic pump, less gauge. See accessories. • 58-P0050 Pressure transducer. See accessories • 58-D0567/RS Connecting hose (to connect the two jacks). See accessories. • 58-D0585 Electronic extensometer (one to three). See accessories. • 82-P9008/F: DATALOG 8, 8 channels stand alone multipurpose data logger (see accessories)