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Showing 1 to 9 of 9 for “"Bending beam rheometer (BBR)"”.
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EVALUATION OF PHASE ANGLE AS A PRACTICAL PARAMETER FOR LOW TEMPERATURE SPECIFICATION GRADING OF ASPHALT BINDERS
… low temperature performance tests such as the bending beam rheometer (BBR) and extended BBR (EBBR) tests are not without limitations. They could be time-consuming and require more sample quantity even though they are rigorous and accurate. Hence, this study aims to examine the viability of …
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Linear viscoelastic characteristics of Michigan asphalt mixtures and the effect of sample size on material properties
… (|E*|) of asphalt mixtures. Small thin mixture beam (TBM) specimens (0.5"x0.25"x4.5") were tested using the Bending Beam Rheometer (BBR) testing machine to obtain the Creep Compliance (D(t)). This study showed that there is a trend in D(t) values obtained from the BBR, but on the other hand; the …
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Cracking potential of short- and long-term aged binder with various levels of ABR
… cracking were derived from various dynamic shear rheometer (DSR) and bending beam rheometer (BBR) tests. Binders from five AC designed with varying ABR percentages (from 0 to 60%) were recovered using the standard Rotovap test procedure. The base binder used in the AC design and binders recovered …
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Validation of New Asphalt Cement Specification Test Methods Using Eastern and Northeastern Ontario Contracts and Trial Sections
… and LS-308 test methods. The LS-308 Extended Bending Beam Rheometer (BBR) Method involves testing of asphalt cement in a regular BBR after specific times of conditioning at –10ºC and –20ºC. The LS-299 Double-Edge-Notched Tension (DENT) Test involves testing of asphalt cement in DENT …
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Material Characteristics of Hot Mix Asphalt and Binder Using Freeze-Thaw Conditioning
… reduction in the strength of HMA. Furthermore, Bending Beam Rheometer (BBR) test is performed on the binder that is used for the HMA. Similarly, the binder is also subjected to freeze-thaw conditioning to determine the stiffness with respect to increasing freeze-thaw. The findings from this …
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Comparative Study of the Effects of Physical and Chemical Aging on Extracted and Recovered Asphalt Binders from Some Municipal and Provincial Roads in Canada
… Superpave® methods such as Dynamic Shear Rheometer (DSR) and Bending Beam Rheometer (BBR) and the improved Ministry of Transportation of Ontario methods (LS-308 Extended Bending Beam Rheometer (eBBR) and LS-299 Double-Edge Notched Tension (DENT) test). Chemical test methods like Fourier …
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Rheological and nanomechanical characterization of aging in polymer modified asphalt
… etc. are determined using Dynamic Shear Rheometer (DSR) test, Multiple Stress Creep Recovery (MSCR) test, Bending Beam Rheometer (BBR) test, Rotational Viscosity (RV) test and the Direct Tension (DT) test. Nanomechanical properties such as hardness and reduced elastic modulus are …
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The effect of mica on the aging of asphalt binder
… with the Scanning Electron Microscope (SEM). Bending Beam Rheometer (BBR) and nanoindentation tests are conducted on mastics mixed with one of the binders and various concentrations of mica-fines aged at different levels. In this study, SEM images of mastic are taken. During the mixing of the …
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Laboratory characterization and field performance of hot in-place recycled mixtures
… mixture-level testing. Illinois Semi-circular Bending (IL-SCB) test and Hamburg Wheel Track Test (WTT) were performed to characterize cracking and rut resistance, respectively. On the other hand, dynamic Shear Rheometer (DSR) and Bending Beam Rheometer (BBR) tests were conducted for binder …