Bending Beam Rheometer & Dynamic Shear Rheometers
The Bending Beam Rheometer (BBR) test provides a measure of low temperature stiffness and relaxation properties of asphalt binders. These parameters give an indication of an asphalt binder’s ability to resist low temperature cracking.
81-PV5902: Bending Beam Rheometer (BBR) 230 V, 50-60 Hz, 1 ph
The Bending Beam Rheometer (BBR) is engineered to perform flexural tests on asphalt binder and similar specimens per ASTM D6648 and AASHTO T313. These tests consist of a constant force being applied to a specimen in a chilled bath in order to derive specific rates of deformation at various temperatures.
The Bending Beam Rheometer (BBR) System consists of a fluid bath base unit, a three-point bending test apparatus which is easily removed from the base unit for specimen loading and unloading, an external cooling unit with temperature controller, and a calibration hardware kit with carrying case. The system includes a PC and the testing software.
The Bending Beam Rheometer BBR can be used as part of your Superpave performance based testing program.
Dynamic Shear Rheometer (DSR) performs the critical rheological characterization analysis required for SuperPave Performance Grade (PG) classification of asphalt binders.
The DSR test uses a thin asphalt binder sample sandwiched between two circular plates. The lower plate is fixed while the upper plate oscillates back and forth across the sample to create a shearing action.
81-PV6102: DSR Dynamic Shear Rheometer. 110-220 V, 50-60 Hz, 1 ph
81-PV6202: DSR Dynamic Shear Rheometer with automatic gap setting.
110-220 V, 50-60 Hz, 1 ph
Both models perform SuperPave performance grading according to AASHTO T315 and ASTM D7175, Viscosity determination of asphalt binder in according to AASHTO T316 and ASTM D4402 and determine Multi Stress Creep Recovery (MSCR) according to AASHTO T350 and ASTM D7405.
Affordable, robust and accurate, the new DSR offers the following benefits:
DSR tests are conducted on unaged, RTFO aged and PAV aged asphalt binder samples.
The binder behavior under various temperature and loading conditions is analyzed to predict its performance at anticipated climatic conditions.