Controls Group Axial-circumferential compression device Axial-circumferential compression device

Axial-circumferential compression device

Main features
  • Ideal for axial deformation and diametrical extension measurement.
  • Suitable for 150mm dia. x 300mm (6"x12") cylinders.
  • Easy and quick application to the specimen.
  • Two different types of measuring systems are available:digital dial gauges or high precision displacement transducers LDT type. 
  • the model fitted with displacement transducers can be connected to our readout and control units AUTOMAX E MODULUS, MCC series and ADVANTEST or to our multichannels datalogger (see accessories and additional information for the proper configuration);
  • the model fitted with digital dial gauges can download readings to a PC with a dedicated cable (see accessories).
General description
General description
The compressometer / extensometer for static Modulus of Elasticity and Poisson’s Ratio to ASTM C469 is a device for measuring the longitudinal strain and corresponding diametrical strain of a 150mm dia. x 300mm (6"x12") long concrete test cylinder, or core, subjected to axial loading. It works by measuring the relative displacement of datum points on the cylinder surface.

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Technical specifications

The available models are:
  • 55-C0221/D fitted with two digital gauges 25x0,001 mm.
  • 55-C0221/E fitted with two high precision displacement transducers LDT type, 0,001mm x 10mm. 

Ordering info

Axial-circumferential compression device complete with 2 digital gauges 25x0,001 mm with output for PC connection (special cable required, see accessories).

Axial-circumferential compression device complete with two high precision displacement transducer, LDT type, 10mm travel.        


Serial cable for PC connection (suitable for model 55-C0221/D)
82-P9008: DATALOG 8, 8 channels stand alone multipurpose data logger.
  • Adjustable 5.7" touch screen colour graphic display                                       
  • 8 independent input analogue channels         
  • Numerical and graphical display of readings   
  • Compatible with load cells, pressure transducers, strain gauges, LDT / LVDT / potentiometric displacement transducers       
  • Programmable VEXC via firmware from 1 to 10 V for each couple of channels (up to 4)         
  • Effective resolution: 131,000 points
  • Requires power supply. Battery packs for in situ application are available as accessories. For more info please refer to link to other product below. 
  • 110-230V / 50-60Hz / 1 Ph
Set of four cables for connecting load cells, pressure transducers, strain gauges, LDT / LVDT / potentiometric type displacement transducers to DATALOG 8 (82-P9008)
Note: cables P9008/ELT are necessary in addition to 82-P0349/ELT          

DATACOMM 2 data acquisition software and LAN cable for PC connection of DATALOG 8 (82-P9008).      
  • Up to 8 datalogger (total 64 channels) can be connected to a single PC creating a modular network (LAN hub is required)                 
  • Free user setting of channel groups (nr. and  type of channels)                             
  • Numerical and graphical display of the readings
  • Fully customizable multi-diagrams function including multi-channels plotted against the same axes and / or one channel plotted in relation to another                           
  • Data export ASCII format                    
  • Possibility to save and recall different calibration files allowing quick transducers swapping                                                                

Additional Information

Typical configuration to read simultaneously displacements / load data using the Datalogger:

Code Description Q.ty
82-P9008  8 channels stand alone multipurpose data logger 1
82-P9008/ELT Set of four connection cables 1
45-R0023 Three way connector 1
82-P0700 Pressure transducer 700 bar cap. 1
82-P0349/ELT Connection cable to Datalogger 1

NOTE: the configuration shown here above is suitable with CONTROLS compression machine.