Request list

is empty

You are here

Vibrating Wire Concrete Stress Cell

If you cannot find the part number in the documentation please provide detail. Specific to this item, it could include part number or application detail, (ex. 20 meters of cable, or 20 litres of volume)

The cell consists of a rectangular flat jack formed from two plates of steel welded together around the periphery. The narrow gap between the plates is filled with hydraulic oil. A Vibrating Wire Pressure Transducer is connected to the cell by a short length of steel tubing, forming a closed hydraulic system.

The Vibrating Wire Concrete Stress Cell is used for measuring total stresses in tunnelling process, mass concreting and rock walls in underground works.

Both cell and transducer are embedded in the medium to be monitored. As the concrete or shotcrete cures, the cell expands due to the rise in temperature.

Upon cooling, a slight gap forms between the cell and the concrete. The compensating tube allows adjustment of initial cell volume to offset concrete shrinkage. This forces extra oil into the cell, thereby expanding it to establish firm contact with the cooled concrete.

Product Features:

• Uses proven Vibrating Wire technology
• Measures stress on and within linings of underground excavations
• Monitors the stress distribution within rock
• Compensation tube offsets the effects of concrete hydration shrinkage, restoring cell contact pressure
• Internal thermistor monitors temperature variations
• Stainless steel cell construction

An armoured, screened cable connects the transducer to a terminal unit, a portable readout unit or data logger.

Ordering Information:

Tangential, 100 X 200Mm, Vibrating Wire Stress Cell
Oil filled, stainless steel stress cell
P10-1-SS-3 300kPa pressure range
P10-1-SS-5 500kPa pressure range
P10-1-SS-10 1000kPa pressure range
P10-1-SS-20 2000kPa pressure range
P10-1-SS-40 4000kPa pressure range
P10-1-SS-60 6000kPa pressure range
P10-1-SS-100 10000kPa pressure range
P10-1-SS-150 15000kPa pressure range
P10-1-SS-3-T 300kPa pressure range with thermistor
P10-1-SS-5-T 500kPa pressure range with thermistor
P10-1-SS-10-T 1000kPa pressure range with thermistor
P10-1-SS-20-T 2000kPa pressure range with thermistor
P10-1-SS-40-T 4000kPa pressure range with thermistor
P10-1-SS-60-T 6000kPa pressure range with thermistor
P10-1-SS-100-T 10000kPa pressure range with thermistor
P10-1-SS-150-T 15000kPa pressure range with thermistor

Radial, 150 X 250mm, Vibrating Wire Stress Cell
Oil filled, stainless steel stress cell
P10-2-SS-3 300kPa pressure range
P10-2-SS-5 500kPa pressure range
P10-2-SS-10 1000kPa pressure range
P10-2-SS-20 2000kPa pressure range
P10-2-SS-40 4000kPa pressure range
P10-2-SS-60 6000kPa pressure range
P10-2-SS-100 10000kPa pressure range
P10-2-SS-150 15000kPa pressure range
P10-2-SS-3-T 300kPa pressure range with thermistor
P10-2-SS-5-T 500kPa pressure range with thermistor
P10-2-SS-10-T 1000kPa pressure range with thermistor
P10-2-SS-20-T 2000kPa pressure range with thermistor
P10-2-SS-40-T 4000kPa pressure range with thermistor
P10-2-SS-60-T 6000kPa pressure range with thermistor
P10-2-SS-100-T 10000kPa pressure range with thermistor
P10-2-SS-150-T 15000kPa pressure range with thermistor

Radial, 200 X 300mm, Vibrating Wire Pressure Cell
Oil filled, stainless steel stress cell
P10-3-SS-3 300kPa pressure range
P10-3-SS-5 500kPa pressure range
P10-3-SS-10 1000kPa pressure range
P10-3-SS-20 2000kPa pressure range
P10-3-SS-40 4000kPa pressure range
P10-3-SS-60 6000kPa pressure range
P10-3-SS-100 10000kPa pressure range
P10-3-SS-150 15000kPa pressure range
P10-3-SS-3-T 300kPa pressure range with thermistor
P10-3-SS-5-T 500kPa pressure range with thermistor
P10-3-SS-10-T 1000kPa pressure range with thermistor
P10-3-SS-20-T 2000kPa pressure range with thermistor
P10-3-SS-40-T 4000kPa pressure range with thermistor
P10-3-SS-60-T 6000kPa pressure range with thermistor
P10-3-SS-100-T 10000kPa pressure range with thermistor
P10-3-SS-150-T 15000kPa pressure range with thermistor

Installation Equipment
W6-8.4 Compensating tube crimping tool
W6-6.1 Cable ties. Pack of 100No

Connecting Cable and Fittings
CA-1.1-2-A Armoured cable, 2 cores. Price per metre, 1.5mm², PVC jacket
CA-1.1-4-A Armoured cable, 4 cores. Price per metre, 1.5mm², PVC jacket, for instruments with thermistors
CA-4.1 Joint sealing kit
CA-4.2 Coloured adhesive tapes. Set of 10 No
CA-4.3 Crimping tool
CA-4.4 Crimping sleeves. Set of 100 No
W6-6.1 Nylon ties. Price each, 150mm x 3.5mm. Pack of 100No
ST1-3.5 Nylon ties. Price each, 370mm x 4.7mm. Pack of 100No

Manual
MAN-170 Vibrating Wire Concrete Stress Cell