Standard: ASTM D6648, AASHTO T313, EN14771
Product Description
The NL PavePro Bending Beam Rheometer (BBR) is a high-precision system engineered to evaluate the low-temperature performance and fracture characteristics of asphalt binders. Operating in strict compliance with international standards, the instrument accurately measures flexural creep stiffness S(t) and the m-value to assess a pavement's resistance to thermal cracking.
By capturing precise deformation data, the BBR provides a reliable, SHRP-compliant solution for quality control and binder characterization. Designed for superior thermal stability, the system utilizes a circulating hybrid cooling module to ensure precise temperature control within ±0.1°C.
Features of Bending Beam Rheometer (BBR)
- Advanced Control & Visualization — Integrated industrial workstation providing real-time graphical display of deformation, load and temperature curves.
- Precision Calibration: Built-in LVDT calibration assembly ensures a simplified and highly efficient system verification process.
- High-Efficiency Cooling — Rapid cooling circulation reaches -18°C from ambient within 40 minutes with superior temperature stability.
- Vibration Isolation — External refrigeration unit connected via flexible hosing to eliminate mechanical interference during sensitive creep tests.
- Thermal Uniformity — High-volume 5L liquid bath equipped with an adjustable-speed magnetic stirrer for consistent temperature distribution.
- Digital Pneumatic Monitoring — Software-based digital display of air source, preload, test load and air bearing pressures.
- Enhanced Data Management — Integrated USB communication port for seamless data export and simplified laboratory record-keeping.
- Intelligent Diagnostics — Comprehensive protection system featuring overload safety, fault pre-warning, audible alarms and diagnostic error codes.
- Durable Construction — Professional-grade stainless steel chassis designed for long-term durability and easy maintenance.
- Flexible Test Protocols — Customizable test durations and calculation intervals to accommodate specific research needs beyond standard 240s protocols.
Technical Specifications:
| Model Number |
NL PV / P6 |
| SENSOR SYSTEM |
| Displacement Sensor Range |
0 - 10 mm |
| Displacement Resolution |
1 μm |
| Force Transducer Range |
0 – 4900 mN |
| Force Resolution |
1 mN |
| Temperature Range |
-50°C to Ambient |
| Temperature Accuracy |
±0.1°C |
| FLUID BATH |
| Temperature Range |
-40°C to Ambient |
| Temperature Control Precision |
±0.1°C |
| Bath Volume |
5 L |
| Stirrer Speed |
25 rpm |
| TEST PARAMETERS & HARDWARE |
| Mould Dimensions |
127 x 12.7 x 6.35 mm |
| Support Contact Radius |
3 ± 0.3 mm |
| Loading Shaft Radius |
6.3 ± 1.3 mm (Spherical Contact) |
| Creep Stiffness Range |
20 MPa - 1000 MPa |
| Data Interface |
USB |
| POWER & DIMENSIONS |
| Main Unit Power |
AC 220V, 1 kW, 1 Ph, 50/60 Hz |
| Refrigeration Unit |
AC 220V, 3 kW, 1 Ph, 50/60 Hz |
| BBR Dimensions |
610 (W) x 610 (D) x 620 (H) mm |
| BBR Weight |
80 kg |
| Chiller Dimensions |
300 (W) x 550 (D) x 600 (H) mm |
| Chiller Weight |
40 kg |
*1 Copy of Manual Instruction
Unit Consists Of:
| Model Number |
Parts Description |
Qty |
| NL PV / P6 – P1 |
Chiller |
1set |
| NL PV / P6 – P2 |
Test Mould |
1no. |
