Standards: ASTM D6648; AASHTO T3143-09;JTGE20;T0627-2011
Description
The bending beam rheometer is used for testing of the bending creep
stiffness of asphalt binders under low temperature as per SHRP
methods, which is used to evaluate the low temperature fracture
characteristics of asphalt binders. The test results including low
temperature creep stiffness S(t) and creep stiffness change rate
m(t).
The temperature is lowered from room temperature to -36°C by
Peltier technology / compressor, and stirred by magnetic force, the
temperature control accuracy is within 0.03°C. The deformation test
accuracy of specimen is up to 0.155 microns, the loading force
accuracy can reach up to 0.147 millinewtons (0.015 grams), and the
load range can be continuously adjusted from 0-450 grams.
RS232/IP/USB communication way available between computer and BBR,
and the test reports can be output.
Features
Precision calibration kit (standard weight, calibration beam,
calibration dedicated LVDT, digital thermometer);
In most laboratory environments, the cooling temperature up to -40
° C;
Durable and corrosion resistant structure
Touch screen or computer control and data acquisition and analysis;
Digital display PID temperature control;
Two independent platinum resistance RTD guarantee accurate
temperature control;
Built-in LVDT sensor and force sensor with temperature compensation
for more accurate results
Air bearings ensure stable and precise loading;
ASTM/AASHTO standardized Test mold
Technical Specifications
1. Loading Mode: air bearing loading
2. Loading Range: 0-500g
3. Loading Accuracy: 0.1g
4. Bending Creep Stiffness Modulus: 20-1000Mpa
5. Displacement Range: 0-50mm
6. Displacement Accuracy: 0.01mm
7. Temperature Range: -40℃-Room temperature
8. Temperature Accuracy: 0.1℃
9. Preloading Force: 35mn±10mn
10. Actual Loading Force: 980mn±50mn
11. Working Power Supply: AC220V, 50Hz
12. Dimension: H410*W590*D960mm
13. Gross Weight: approx. 45kg
