ASTM D4123 - ASTM D3497- BS DD 226
EN 12697 24 - EN 12697 25 - EN 12697 26
AASHTO TP62 -AASHTO TP31- AASHTO TP8
AASHTO TP46 - AASHTO T307-NCHRP 1-28A
Dynamic modulus for permanent deformation
Dynamic modulus for fatigue cracking
Universal test software
Allows user designed test routines that can include multiple
wave types and methods of data acquisition
CRT-NU14 - UNIVERSAL SERVO PNEUMATIC TESTING SYSTEM
CRT-IT-SH Indirect tensile module with full instructions and comprising: For measuring resilient modulus (indirect tensile stiffness modulus) of 100mm and 1 150mm diameter asphalt concrete and cement stabilised specimens
CRT-PD-SH Permanent deformation module with full instructions and comprising: For uniaxial creep and dynamic creep tests on 1 100mm and 150mm diameter asphalt concrete Specimens.
CRT-4PT-BFAT-SHBeam fatigue module with full instructions and comprising..
For controlled strain or Controlled stress 4 point bending beam fatigue tests
1. The actuator will operate at frequencies up to 100 Hz, but at this frequency load is low.
2. The CRT-NU14 system software runs under Windows 2000/NT/XP.
3. The test methods listed require additional subframes
CRT-100UBTRIAX-SH Unbound materials triaxial test module with full instructions and comprising:
Environmental chamber to enclose asphaltic concrete material test modules with split chamber system for quick removal when testing non temperature dependent materials. 10°C to +60°C ±0.5°C accuracy.Dimensions:- 80 x 80 x 150cms Weight:- 120kgs *Note: With all servo-systems (hydraulic or pneumatic) the applied load range decreases as frequency decreases. This depends on a number of factors including the test configuration and the nature of the material being tested.
Four point beam fatigue test
NAT Asphalt Testing System