Materiaaltesten Fundering  Flat Jacks

Flat Jacks

Description

Introduction
The 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 pressurized to the desired level.

Test modes:
For stress determination a single flat jack has to be used.
For deformability and resistance determination two flat jacks have to be used.

The flat jacks have to be pressurized and the strain measured using the Analog or Digital mode as follows:

Analog measurement
The following accessories have to 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 have to 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: DATALOG 8, 8 channels stand alone multipurpose data logger (see accessories)

Note. In order to fill conveniently the testing cut, use the sets of steel sheets of the same flat jack dimensions. See accessories.

Weights:

  • 58-D0567/C2, 58-C0567/C20 …..kg. approx.
  • 58-D0567/E2, 58-D0567/E20  …..kg. approx.

Label/Normering

Technische specificaties

Technical Specifications

 CodeAnalogical system
(quantity needed)		Digital system
(quantity needed)
System with one flat jack System with two flat jacks System with one flat jack System with two flat jacks 
Rectangular flat jacks58-D0567/C2 1212
58-D0567/C111 or more 1 or more 1 or more 1 or more 
58-D0567/C201 or more 2 or more 1 or more 2 or more 
Semi-oval flat jacks58-D0567/E2 1212
58-D0567/E11 1 or more 1 or more 1 or more 1 or more 
58-D0567/E201 or more 2 or more 1 or more 2 or more 
Hydraulic pump58-D0568/A 1111
82-P0050--11
82-P0349/ELT--11
58-D0568/4  --11
58-D0567/RS -1-1
Strain measurement58-C0230/30D 11--
58-D0585--1 or more 1 or more 
Datalogger82-P9008/F --11
82-P9008/ELT--22
82-P9008/SOF--1 (optional)1 (optional)


NOTE: Flat jacks are supplied without Km constant value.

Order nummers

58-D0567/C2: Rectangular flat jack 400x200 mm, 50 bar 58-D0567/C20: Rectangular flat jack 400x200 mm, 50 bar, less valves.

Accessoires & toebehoren

 

58-D0567/C11: Set of five steel sheets 58-D0567/E11: Set of five steel sheets for semioval flat jacks 82-P9008/ELT: Set of four cables for connecting load cells, pressure transducers, strain gauges, LDT / LVDT / potentiometric type displacement transducers to DATALOG 8 (82-P9008) and GEODATALOG 8 ( 30-WF6008) 82-P9008/SOF:

DATACOMM 2 data acquisition software and LAN cablefor PC connection of DATALOG 8 (82-P9008, P9008/F) - Up to 8 datalogger (total 64 channels) can be connected to a single PC creating a modular network (LAN hub is required) 

82-P0050: Pressure transducer 0-50 bar (connecting cable notincluded)58-D0567/E2: Semioval flat jack 350x260 mm, 50 bar 58-D0567/E20: Semioval flat jack 350x250 mm, 50 bar, less valves. 82-P0349/ELT: Connecting cable for pressure transducer. Suitablefor Smart-Line, Sercomp, MCC, Advantest control consoles and Compact-Line compression machines. 82-P9008:

DATALOG 8, 8 channels stand alone multipurpose data logger. 110-230V / 50-60Hz / 1 Ph.

58-C0230/30D: Device for the measurement of length variation with digital dial gauge. Measuring base 300 mm. Measuring range 5 mm. Resolution 0.001 mm. Comprehends digital dial gauge with output for PC connection (special cable required). Conforming to BS 1881:206 58-D0567/RS: Connecting flexible hose, 700 mm length for testing two flat jacks. 58-D0568: Hydraulic hand pump with reservoir and flexible hose 58-D0568/A: Hydraulic hand pump with pressure gauge 100 bar range 58-D0568/4: Connecting coupling for pressure transducer 58-D0585: Tubolar electronic extensometer.

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