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EPC Products Civil Engineering Testing Instruments Geotechnical Testing Rock & Soil Testing Laboratory Soil Testing Soil Mechanical Properties Triaxial Testing System Triaxial Testing System (Automated Stress Path type)(GDSTTS）
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Triaxial Testing System (Automated Stress Path type)(GDSTTS）

Model：STDTTS ADVTTS HPTTS

Use：The GDS Triaxial Testing System (GDSTTS) is a fully automated triaxial testing system designed principally for stress path testing.

Standard：ASTM D-4767; ASTM D-7181

TRIAXIAL TESTING SYSTEM (AUTOMATED STRESS PATH TYPE)

Product Code : GDSTTS

The GDS Triaxial Testing System (GDSTTS) is a fully automated triaxial testing system designed principally for stress path testing.

The GDSTTS is based on the classic Bishop & Wesley type stress path triaxial cell which controls stress directly on the sample.  The system can be configured using Enterprise, Standard or Advanced level controllers. The  38/50mm cell is for up to 7kN axial force, with the larger 70/100mm cell up to 25kN. This is the system of choice for teaching laboratories and researchers.
 

Key features Benefits to the user
Each system may be configured exactly to the customer’s specification and budget: Users can choose the transducers, pressure controllers, triaxial cell or just parts to integrate into existing equipment to build their ideal set-up.
Direct actuation of axial stress through the hydraulically controlled ram in the base of each cell: The Bishop and Wesley cell is designed specifically for stress path testing. Direct axial stress application means greater accuracy for stress control. 
GDSTTS can run advanced tests: Tests such as stress paths, slow cyclic and K0, all under PC control.
Standard through to advanced configurations: GDS provide advanced (ADVTTS) systems with all the features of the standard systems but with higher accuracies and resolution.
May be upgraded at any time:
Additional transducers, software modules, bender element testing and unsaturated testing makes the system future proof.

Accuracy of Pressure Measurement
Standard Set-up (STDTTS) <0.15% full range, Advanced Set-up (ADVTTS) <0.1% full range
Accuracy of Volume Measurement

Standard Set-up (STDTTS) 0.25% measured value , Advanced Set-up (ADVTTS) <0.1% measured value

Load Range (kN)

Standard Set-up (STDTTS): 7 or 25 , Advanced Set-up (ADVTTS): 7 or 25, High Pressure Set-up (HPTTS): 7 or 25.

Pressure Range (MPa)

Standard Set-up (STDTTS): 1,2,3,4 , Advanced Set-up (ADVTTS): Up to 10, High Pressure Set-up (HPTTS): Up to 10.

Resolution of Pressure Measurement

Standard Set-up (STDTTS): 1kPa, Advanced Set-up (ADVTTS): 0.1kPa

Sample Sizes

38/50mm or 70/100mm


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