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Concrete

Axial-circumferential compression device

ASTM C469
Main features
  • Ideal for axial deformation and diametrical extension measurement.
  • Suitable for dia.150x300mm (6"x12") and dia.100x200mm (4"x8") 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. 
NOTE:
  • the model fitted with displacement transducers can be connected to our readout and control units AUTOMAX Multitest, MCC 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 dia.150x300mm (6"x12") and dia.100x200 mm (4x8") concrete cylinders, or core, subjected to axial loading. It works by measuring the relative displacement of datum points on the cylinder surface.

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

The models fitted with displacement transducers can be connected to a suitable data logger or, directly to our Automatic control consoles AdvantestMCC or Automax Multitest which can provide cyclic loading and automatic determination of the Modulus of Elasticity.
The data logger  as, for example, our model 82-P9008, can be  used with compression testers for axial deformation measurement when it's not mandatory to perform loading / unloading cycles, but only loading ramps. In this case, one of the channel of the data logger should be used for the load signal coming from an additional pressure transducer with 3 way connector fitted to the compression tester. Please get in touch with our technicians for complete information and service
 

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Technical specifications

 

Ordering info

55-C0221/D
Axial-circumferential compression device complete with 2 digital gauges 25x0,001 mm with output for PC connection (special cable required, see accessories).

55-C0221/E
Axial-circumferential compression device for cylinder dia.150x300mm complete with two high precision displacement transducer, LDT type, 10mm travel.        

55-C0221/F
Axial-circumferential compression device for cylinder dia.100x200mm  complete with two high precision displacement transducer, LDT type, 10mm travel.        

Accessories

82-D1261/LINK
Serial cable for PC connection (suitable for model 55-C0221/D)

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.

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