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Foundation integrity testing products

JF Strainstall's foundation integrity testing products are highly accurate and reliable, providing cost-effective and long-term operation.

JF Strainstall's foundation integrity testing products are highly accurate and reliable, providing cost-effective and long-term operation.

 TDR2 pile integrity tester

The TDR2 is a lightweight and rugged, self-contained pile integrity testing system.

This highly versatile pile integrity test system can be used to test pre-cast concrete, cast-in-place concrete and timber piles of varying dimensions.

TDR2 can locate anomalies including shaft restraints, overbreak, cracks, reductions in sections and zones of poor quality concrete. This innovative system can also measure pile length, pile stiffness and mobility to further assess concrete quality and pile section.

Using solid state memory the TDR2 unit is built for security and speed of operation, with a backlit screen for working in dark environments. Supplied with a tough case and high quality waterproof connectors as standard, the unit can be easily transported and used in inclement weather conditions. 

TDR2 testing system


Benefits of the TDR2 pile integrity test system:

  • Fast testing of 200 plus piles per day
  • Operates for up to 8 hours on full charge
  • Storage for over 700 results
  • Simulation software for analysis of pile and soil properties
  • Compliant with ASTM D5882 and AFNOR NFP94-160-2 & 4
  • Complete testing package available

All of our equipment is supplied fully calibrated to UK national standards.

TDR2 system specifications  
TDR2 unit
Features Twin channel hand held spectrum analyser
Daylight viewable screen
Tactile large keys for operating with gloves
Low power with long battery life
Flash memory for instant start up and power down
On-site length and stiffness measurement
Rugged lightweight unit with waterproof connectors
Keypad Sealed, colour coded and full alphanumeric keypad, tactile and audio feedback
Operating temperature 0°C to +50°C
Display Monochrome LCD transflective with back light
Contrast keypad, adjustable backlit display with auto-off
122mm x 77mm with protective plate
Acquisition  2 channel, 16 bit acquisition at 25KHz sample rate
Pre-trigger on both channels
Auto-ranging gain feature
Frequency range  0Hz to 5000Hz
Storage 700+ results, 3 data sets per pile with full header information - site, pile no, diameter, operator, transducers and date / time stamp 
Displays Velocity vs time
Force vs time
Force vs frequency
Mobility vs frequency
Accuracy - black tip Frequency - 0-1000Hz, ±0.5%
Mobility - 20-800Hz, ±15%
Mobility - 800-1000Hz, ±50%
Power Battery - 1.2V NiMH rechargeable AA cells
Auto power off and battery indicator
Battery life 8 hours + on full charge
Charge time Approx 6 hours
Charging External wall plug-in charger for 100/110/250VAC inputs (trickle charge)
External cigar plug-in charger for 12VDC inputs (fast charge)
Dimensions L 218mm x W 187mm x D 55mm
Weight 1.35kg
TDR impulse hammer 
Type Constant current load cell
Weight 1.2kg with fibre glass shaft
Nominal output 0.15 Volts/N
Frequency range 0-1000Hz (black tip)
500-5000Hz (aluminium tip)
Range 0-10,000N
TDR geophone  
Type Vertical SM-6
Natural frequency 4.5Hz
Nominal output 30 volts/m/sec
Operating temperature -30°C to +60°C

The TDR2 system is supplied with a powerful software analysis program, to enable more detailed analysis of changes in the pile section and the influence of soil. 

The TPAP software is an easy to use platform for analysing results and producing reports. Piles are tabulated and automatically sorted into numerical order, and test results can then be accessed directly from the table.

Analysis of pile length can be carried out either in the velocity or mobility views and interpretation can be confirmed using the simulation and impedance log modules, removing subjective elements.

Simulation modules

This powerful tool can be used to predict the mobility curve using soil and pile properties. It can also be used to assess piles with anomalies by using curve matching in real-time. Up to 10 geotechnical layers can be input to simulate real ground conditions.

Impedance log

The pile shaft inpedance is separated from soil effects and plotted against depth. This can effectively be viewed as a pile cross section profile. Often, complex time domain results can be resolved using this method. 

The Transient Dynamic Response (TDR) test is a rapid method of assessing the integrity of both pre-cast and cast in-situ concrete piles.

After ensuring that the concrete in the pile head is visually free of loose materials and contaminants, a geophone sensor is placed in contact with the pile head and struck axially using the systems force response hammer.

The response of both transducers is measured simultaneously, and the velocity and force signals and processed and displayed on the test unit. 

By assuming a wave speed velocity it is possible to calculate the pile length. Reflections can also be obtained from acoustic anomalies within the pile shaft. At low frequencies the response is generally linear allowing measurement of the dynamic pile head stiffness.


 TECO pile integrity tester

The TECO time domain system is used for checking the integrity of concrete piled foundations.

Using solid state memory the equipment is built for security of data and speed of operation. With a rugged yet lightweight casing, backlit LCD screen and waterproof connectors the TECO unit is easy to transport and can be used in inclement weathers.

A user friendly menu system guides the operator and displays data in an easy to follow format. Data is transferred to the windows based TEAP analysis software through a USB interface.

The site unit can measure pile length and provides the operators with a choice of filters to suit the application. This versatile system can be used to test pre-cast concrete, cast-in-place concrete and timber piles of most dimensions.

 

TECO


Benefits of the TECO pile integrity system:

  • Lightweight and rugged design
  • Operates for up to 8 hours on full charge
  • Backlit LCD screen for working in dark environments
  • Storage for over 700 results
  • User friendly software
  • Compliant with ASTM D5882
  • Complete testing package available

All of our equipment is supplied fully calibrated to UK national standards.

TECO system specifications  
TECO unit
Features Single channel hand held spectrum analyser
Daylight viewable screen
Tactile large keys for operating with gloves
Low power with long battery life
Flash memory for instant start up and power down
On-site length measurement
Rugged lightweight unit with waterproof connectors
Up-gradable to twin channel TDR2 system
Keypad Sealed, colour coded and full alphanumeric keypad, tactile and audio feedback 
Operating temperature  0°C to +50°C
Screen Monochrome LCD transflective with backlight
Contrast keypad adjustable, backlit display with auto-off, 122mm x 70mm with protective screen cover 
Acquisition 1 channel, 16 bit acquisition at 25KHz sample rate
Pre-trigger, auto-ranging gain feature
Frequency range 0Hz to 5000Hz
Storage 700+ results, including 3 data sets per pile with full header information including site, pile no, diameter, operator, transducers and date/time stamp
Numbering Manual or auto numbering
Signal polarity Positive or negative
Display Velocity v time
Integrated output from accelerometer in time domain, auto vertical scale
User defined horizontal scale in depth m
Filtering Slow, medium or fast filters to suit depth measurement
Signal velocity Default 4000m/sec, but can be user defined
Accuracy Time domain: ±0.5%
Velocity: ±5%
Power Battery: 1.2V NiMH rechargeable AA cells
Battery indicator and user defined auto power off
Battery life 8 hours + operation on full charge
Charge time Approx 6 hours
Charging External wall plug-in charger for 100/110/250VAC inputs (trickle charge)
External cigar plug-in charger for 12VDC inputs (fast charge)
Dimensions L 218mm x W 187mm x D55mm
Weight 1.35Kg
Impulse hammer  
Type Non-instrumented with fibre glass handle and hard/soft tips
Weight 0.5Kg
Accelerometer  
Type ICP type with military type IP65 connector and cable
Range 1-10000Hz
Nominal output 100mV/g

The TEAP2012 software is supplied as standard and provides an easy to use platform for analysing test results and producing reports. The software can tabulate the data and present all response curves either individually or up to 8 test results per page for comparison.

Response curves can be filtered and exponentially amplified to help detect weak responses from depth and signal polarity can be reversed to suit the users' preference.

Piles are tabulated and automatically stored into numerical order. The test results can then be accessed directly from the table.

The user is able to define what variables to include in report tables select different concrete velocities and save commonly used interpretations. Overall site comments can be included with the table and the user's company logo can be stamped on each page.

The print menu enables 4 or 8 plots per page to be presented and depth scales to be normalised.

 


 TECO-LITE pile integrity tester

The TECO-LITE is a wireless foundation testing system, used for checking the integrity of concrete pile foundations.

The TECO-LITE system uses a rugged PDA to receive and analyse data, with a wireless Bluetooth transducer to measure the acceleration response of the foundation.

The PDA screen is clearly visible in bright daylight and is provided with a backlight for night operations if required.

Data can be transferred to the windows based TEAP analysis software through a USB interface or Bluetooth for more detailed analysis and reporting.

The flexibility of this system means it can be used to test pre-cast concrete piles, cast-in-place foundations and timber piles of most dimensions. Typical anomalies that may be located include shaft discontinuities, overbreak or bulges, reductions in section or necking and zones of poor quality concrete.

 

TECOlite


Benefits of the TECO-LITE wireless pile integrity testing system:

  • Wireless transducer
  • Rapid testing - up to 300 piles per day
  • Lightweight and rugged PDA test unit
  • Operates for up to 8 hours on full charge
  • User friendly software
  • Compliant with ASTM D5882
  • Complete testing package available

All of our equipment is supplied fully calibrated to UK national standards.

TECO-LITE system specifications  
PDA unit
Features Highly sensitive u-blox GPS receiver
Digital compass
Altimeter / barometer
8m pixel auto focus camera
Built in WiFi, Bluetooth and cellular WWAN
Memory 1GB RAM & MicroSD/MicroSDHC slot
Storage 4GB iNAND flash
Display 4.7 in FWVGA IPS capacitive multi-touch colour
Keypad Numeric with 3 programmable function keys
Battery type 3.7V 5200 mAh Li-on warm swappable
Battery life Up to 8 hours on full charge
Connection USB A host, USB micro, RS232, 3.5mm headset
Communication Bluetooth, cellular (WWAN) and wireless LAN
Dimensions L 191mm x W 80mm x D 35mm
Weight 300Kg
Operating temperature  -20oC to +60oC
Environmental sealing IP67
Test sealing TEAP mobile PIT software
Accelerometer  
Accelerometer type ICP type, nominally 100mV/g
Frequency range 1-10000Hz
Acquisition 1 channel, 16 bit acquisition at 25KHz sample rate
Pre-trigger and auto-ranging gain feature
Wireless range Approx 20m depending on topography
Battery 600mAh, Li-on smart, rechargeable
Battery life Up to 8 hours operation on full charge
Charge time Approx 2 hours
Charging USB charging lead using either AC adapter (100-240VAC, 50/60Hz), DC car charger (12VDC) or PC USB port 
Battery indicator LED indicator on start up
Impulse hammer
Type Non-instrumented with fibre glass handle and hard/soft tips
Weight 0.5Kg

Featuring TEAP analysis software as standard, data can be tabulated and all response curves presented for reporting either individually or up to 8 test results per page.

Response curves can be filtered and exponentially amplified to help detect weak responses from depth and signal polarity can be reversed to suit the operators' preference.

The user is able to define which variables to include in report tables, select different concrete velocities and save commonly used interpretation comments.

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