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Servo-Hydraulic Universal Testing Machine

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A new generation of Universal Testing Machine combining state of the art technology with proven reliability and precision for research and standard testing

The Servo-Hydraulic Universal Testing Machine (CRT-UTM-HYD) is a well designed, inexpensive machine specifically developed for the testing of materials used in pavement construction. A motorized, adjustable cross head reduces the time between test set-ups. The programmable temperature cabinet provides the possibility to perform frequency/temperature sweeps. Accurate waveforms are digitally generated and applied by the actuator producing repeatable conditions that are simulative of those created by moving or static vehicles. The actuator is double-acting allowing both compressive and tensile forces to be applied. Various systems are available for the measurement of the modulus of unbound materials.

Standards

Modulus:
  • EN 12697-26 Annex C
  • EN 12697-26 Annex D & E
  • ASTM D7369
  • ASTM D4123
  • ASTM D3497
  • AASHTO TP31
  • AASHTO TP62 / TP79

Permanent Deformation:
  • EN 12697-25 Methods A & B
  • DD226
Simple Performance Tests:
  • Flow number
  • Flow time
  • NCHRP9-19; NCHRP9-29
Fatigue:
  • EN 12697-24 Annex E
  • ASTM D7313 DCT (Disc shaped compact tension test)
  • EN 12697-44 SCB (Semi circular bending test)
Chinese Tests:
  • Bending; Creep; Splitting Test
  • T 0738-2011
Unbound Materials:
  • AASHTO T307 (previously TP46)
  • NCHRP 1-28A

Key Features

  • Designed to perform a range of tests on asphaltic paving materials, sub-grade soils and granular sub-base materials
  • Double acting fatigue rated hydraulic actuator with integral stroke transducer
  • Utilises Star servo valve with ‘Sapphire Technology’
  • Motorised adjustable lower cross head with automatic hydraulic frame clamping
  • Integral programmable temperature controlled cabinet
  • Issued with UKAS accredited certificate of calibration for EN 12697-24; EN 12697-25, EN 12697-26
  • Accessories available to perform a range of standard and non standard test methods
  • Can be supplied with standard software to perform EN, ASTM and AASHTO test methods and universal software to design non standard test routines


Key Uses

  • Assessment of resistance to permanent deformation (rutting)
  • Measurement of stiffness modulus
  • Assessment of resistance to fatigue cracking
  • Resilient modulus of unbound materials
  • Mix design

cDAC – ADVANCED DATA ACQUISITION SYSTEM

  • 20 bit resolution, 5kHz per channel
  • Will accept any voltage transducer in any channel using TEDS Thermocouples
  • 1024 data points per cycle
  • Up to 16 digital input & output channels
  • Ethernet/USB/RS232 to PC communication

cDAC LIGHTS ON

Software

  • User friendly, intuitive and reliable Windows software developed using LabVIEW
  • Standard test software available to meet specific EN, ASTM and AASHTO test methods
  • Universal test software for the development of test methods using static, sinusoidal, haversine, square, triangular with user selected frequencies and data collection rates
  • Stored test data can be imported into a spreadsheet package to be analysed by the user
  • Utilities are included for transducer check, diagnostic routines and calibration

DIMENSION-Software

*cDAC & Dimension optional. Please enquire for details.

Accessories

Accessories are not included in the price of main device (unless stated otherwise) and may be purchased separately if required.


CRT-ITSMFAT-SET Indirect tensile stiffness modulus and fatigue measurement system to perform EN 12697-26 (Annex C) EN 12697-24 (Annex E) Ø100&150mm specimens.
CRT-ITSM-SET Indirect tensile stiffness modulus measurement system to perform EN 12697-26 (Annex C) Ø100&150mm specimens.
CRT-FAT-SET Indirect tensile fatigue measurement system to perform EN 12697-24 (Annex E) for Ø100mm specimens. To be used with CRT-ITSM-SET.
CRT-FAT-SET100_150 Indirect tensile fatigue measurement system to perform EN 12697-24 (Annex E) for Ø100mm specimens. To be used with CRT-ITSM-SET.
CRT-FAT-SET150 Add-on for CRT-FAT-SET for 150mmØ specimens. To be used with CRT-ITSM-SET and CRT-FAT-SET.
CRT-PD-SET Dynamic and static creep measurement system to perform EN12697-25 (Method A)
CRT-PRESTRIAX-SET Dynamic and static creep measurement system – confining stress to perform test according to EN 12697-25 Method B.
CRT-IT-RESMOD Resilient modulus test system to perform AASHTO TP31 and ASTM D4123
CRT-IT-D7369 Resilient modulus test system to perform ASTM D7369
CRT-INDTENS-CREEP Indirect Tensile Creep measurement system according to AASHTO T322
CRT-DTC-HYD Direct Compression & Tension Measurement System to perform test according to EN 12697-26 Annex E for CRT-UTM-HYD
CRT-T307 Triaxial system to perform AASHTO T307 for Ø200x100mm specimens of unbound materials
CRT-T307+ Triaxial system to perform AASHTO T307 for Ø200x100mm and Ø150x300mm specimens of unbound materials. To use with CRT-UTM-NU pillar extensions are required.
CRT-T307-EXTRA Additional parts to upgrade from T307 to T307+
CRT-SPTLV Test system to perform dynamic modulus according to AASHTO TP62, SPT flow number (NCHRP 9-19), SPT flow time (NCHRP 9-19)
CRT-INDTENS-CREEP Indirect Tensile Creep measurement system according to AASHTO T322
CRT-PUMA PUMA – Precision Unbound Materials Analyser for 150mmØ specimens
CRT-UTM-SCB Semi circular bending system to perform EN 12697-44 SCB test

Specifications

Technical specifications are subject to change without notice.


Model CRT-UTM-HYD25
Maximum Load 25kN
Load Transducer Variable dependant on capacity
Actuator Stroke mm 50
Frequency 0 to 70 Hz
Electrical Supply¹ 3 Phase 415 Volts 50 Hz @ 16A
Compressed Air 7 bar @ 100 L/min For accessories only
Dimension mm (W x D x H) UTM & Cabinet:
1000 x 1300 x 2400
Power Pack: 630 x 580 x 890
Working space required mm (W x D x H) 1100 x 2300 x 2600
Weight (approx.) Kg UTM & Cabinet 680
Power Pack 60
PC Included

¹ others available upon request

Calibration & Maintenance

Calibration, Annual Service and Maintenance Contracts are available for this device.
UKAS accreditation to satisfy typed testing as described in EN 13108.
Please enquire for further details.
Note: This device should be checked and calibrated annually.