Precision Unbound Material Analyser

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Product code: CRT-PUMA
Standard: To Be Confirmed: IAN 73/06 - DESIGN GUIDANCE FOR ROAD PAVEMENT FOUNDATIONS Add To Quote

Precision Unbound Material Analyser

DescriptionKey FeaturesSoftwareSpecificationsDatasheet The Precision Unbound Material Analyser (PUMA) is a new type of laboratory test equipment designed to fill the gap between expensive and complex laboratory tools (such as triaxial cells) and more empirical methods (such as the California Bearing Ratio test). It is designed to generate realistic values of modulus for use in road […]
Quote: Precision Unbound Material Analyser 1

Precision Unbound Material Analyser

To be confirmed by email: 0.00

DescriptionKey FeaturesSoftwareSpecificationsDatasheet The Precision Unbound Material Analyser (PUMA) is a new type of laboratory test equipment designed to fill the gap between expensive and complex laboratory tools (such as triaxial cells) and more empirical methods (such as the California Bearing Ratio test). It is designed to generate realistic values of modulus for use in road pavement...

The Precision Unbound Material Analyser (PUMA) is a new type of laboratory test equipment designed to fill the gap between expensive and complex laboratory tools (such as triaxial cells) and more empirical methods (such as the California Bearing Ratio test). It is designed to generate realistic values of modulus for use in road pavement design.
The PUMA can be used to test unbound, hydraulically bound and asphaltic materials. It has been designed as a low cost, easy to use and practical tool, but one which is capable of generating scientifically meaningful data (Modulus and Resistance to Permanent Deformation), for use in road pavement design. It can be used to test specimens made from granular material, soil or lightly stabilised material etc, with a maximum particle size of 31.5mm.
The PUMA is proposed as a direct equivalent to the Springbox, with the advantage that initial stress conditions can be accurately controlled. It is a simple test, suited to generic specification, that holds the promise of increased confidence in pavement foundation design, particularly in cases where favourable weather conditions during construction result in unrepresentatively high Dynamic Plate Test (DPT) values, or in cases where stabilised soils or cold-mix asphalt are employed.

  • Designed for use within a UTM loading frame.
  • Compatible with existing loading systems currently used for asphalt testing.
  • Compaction can be carried out using existing vibrating hammer equipment.
  • Flexibility to alter stress conditions (vertical and horizontal) and the number of load cycles if desired.
  • Possibility to carry out the test directly under DPT equipment in order to simulate as closely as possible the likely in-situ value.
  • Equipment is applicable to all unbound materials with particle size up to 31.5mm.
  • Suitable for tests on hydraulically bound materials.
  • User friendly, intuitive and reliable Windows™ software developed using LabVIEW™
  • The software records the following to text file for compatibility with common spreadsheet software such as Microsoft Excel:
    • Axial Stress
    • Axial Strain
    • Radial (Confining) Stress
    • Radial Strain
    • Stiffness Modulus
    • Poisson’s Ratio
Maximum Applied Force15.5kN using CRT-UTM-NU and 25kN using CRT-UTM-HYD
Specimen Height mm150
Specimen Ø mm150
Dimension mm (WxDxH)240 x 320 x 200
Working space required mm (WxDxH)Designed for use within CRT-UTM-NU and CRT-UTM-HYD
Estimated Weight Kg25
PCNot required, integral to UTMs

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