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TORRENT

The Torrent permeability tester permits a rapid and non-destructive measurement of the quality of the cover concrete with respect to its durability.

Concrete permeability, with respect to air and water, is an excellent indicator of the potential durability and resistance of a particular concrete against the ingress of aggressive media in the gaseous or liquid state.

Features

  • The data is automatically collected by the display unit and the permeability coefficient kT as well as the penetration depth L of the vacuum are automatically calculated
  • Measurement takes 2 - 12 minutes depending on permeability of the concrete
  • The quality class of the concrete cover of dry concrete can be read from a table using the kT value
  • In the case of moist concrete, kT is combined with electrical concrete resistance ρ (rho) and the quality class is determined from a nomogram
  • Optional resistance Wenner-probe to correct the influence of concrete moisture is available.

Application

  • To determine the quality of the cover concrete
  • To assess the durability of a concrete structure

Standardization

  • SN 505 252/1, Annex E

Technical Data

Display unit
Memorynon-volatile memory for 200 measured objects
Display128 x 128 graphic LCD
InterfaceRS 232 or optional adapter to USB
Power supplysix 1.5 V, LR 6 (AA) batteries for 60 h operation or optional commercial power unit 9 VDC/0.2A
Temperature range-10 °C to +60 °C
Carrying case 325 x 295 x 105 mm (12.8 x 11.6 x 4.1 in)
Total weight2.1 kg (4 lb, 10 oz)
Control unit with membrane pressure regulator and pressure sensor
Vacuum connectionsmall flange 16 KF
Carrying case520 x 370 x 125 mm (205 x 146 x 49 in)
Total weight6.3 kg (13 lb, 14 oz)
Vacuum Pump
The pump is required for operation.
Please order pump separately as it is not supplied with the unit.
Suction capacity1.5 m3/h
Final total pressureApprox. 10 mbar