Homework Answers
14. From the models two spring in series, Generalized Maxwell with a spring in parallel, Dashpot and Burger's model of material behaviour for characterizing the relaxation modulus of asphalt concrete best model is Generalized maxwell model with a spring in parallel because this model elaborately discuss the viscoelastic properties of asphalt concrete.
The answer will be Generalized Maxwell with a spring in parallel.
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11. A possible grade of the binder with the following Bending Beam Rheometer (BBR) data (after...
3. (15 points) A bending beam rheometer (BBR) test was conducted on an asphalt binder specimen which has width of 12.5mm and height of 6.25mm. The distance between beam supports is 02mm. The foll...
3. (15 points) A bending beam rheometer (BBR) test was conducted on an asphalt binder specimen which has width of 12.5mm and height of 6.25mm. The distance between beam supports is 02mm. The following results were reported: ( (s points) At 60 seconds, the force was 0.9658N and the deflection was 0.1877mm Determine the creep stiffness, S(60). (2) (s points) A regression of the relationship between log(S) and log() log[S(t)]-2.86-0.21 [log(t)]1-0.03 [log(t)] 2 found to be was Determine the m-value...
Results obtained from laboratory tests on a sample of asphalt binder are shown belo Determine the...
Results obtained from laboratory tests on a sample of asphalt binder are shown belo Determine the Performance Grading for this binder. Show all work for credit. Original Binder Rotational Viscometer, 135°C, Pa.Sec Test Results 2.00 G'/Sin8, KPa, 69°C G/Sino, KPa, 64°C G'/Sino, KPa, 60°C 0.80 1.11 1.55 RTFOT Residue Mass loss, % 0.11 G/Sino, KPa, 69°C G*/Sino, KPa, 64°C G*/Sino, KPa, 60°C 1.57 2.21 3.05 PAV Residue G'Sino, KPa, 28°C G'Sino, KPa, 25°C G'Sino, KPa, 22°C 1,085 1,883 2,953 Creep...
Jmm TM FA mb s) Determine the PG grade for the asphalt properties reported in Table...
Jmm TM FA mb s) Determine the PG grade for the asphalt properties reported in Table 1. Table 1. Asphalt Materials Test Results. Properties Test Result Original Properties Flash point temperature, °C Rotational Viscosity, Pa*s at: 135°C 257 0.50 0.20 155°C Dynamic shear, kPa G*/sind at 58°C G*/sin8 at 64°C G*/sin8 at 70°C 1.90 1.05. 0.74 Rolling Thin Film Oven Aged Binder 0.3 Mass Loss, Dynamic shear, kPa G*/sind at 58°C G*/sind at 64°C G*/sin8 at 70°C Rolling Thin Film...
3. (15 points) A bending beam rheometer (BBR) test was conducted on an asphalt binder specimen which has width of 12.5mm and height of 6.25mm. The distance between beam supports is 02mm. The following results were reported: ( (s points) At 60 seconds, the force was 0.9658N and the deflection was 0.1877mm Determine the creep stiffness, S(60). (2) (s points) A regression of the relationship between log(S) and log() log[S(t)]-2.86-0.21 [log(t)]1-0.03 [log(t)] 2 found to be was Determine the m-value...
Results obtained from laboratory tests on a sample of asphalt binder are shown belo Determine the Performance Grading for this binder. Show all work for credit. Original Binder Rotational Viscometer, 135°C, Pa.Sec Test Results 2.00 G'/Sin8, KPa, 69°C G/Sino, KPa, 64°C G'/Sino, KPa, 60°C 0.80 1.11 1.55 RTFOT Residue Mass loss, % 0.11 G/Sino, KPa, 69°C G*/Sino, KPa, 64°C G*/Sino, KPa, 60°C 1.57 2.21 3.05 PAV Residue G'Sino, KPa, 28°C G'Sino, KPa, 25°C G'Sino, KPa, 22°C 1,085 1,883 2,953 Creep...
Jmm TM FA mb s) Determine the PG grade for the asphalt properties reported in Table 1. Table 1. Asphalt Materials Test Results. Properties Test Result Original Properties Flash point temperature, °C Rotational Viscosity, Pa*s at: 135°C 257 0.50 0.20 155°C Dynamic shear, kPa G*/sind at 58°C G*/sin8 at 64°C G*/sin8 at 70°C 1.90 1.05. 0.74 Rolling Thin Film Oven Aged Binder 0.3 Mass Loss, Dynamic shear, kPa G*/sind at 58°C G*/sind at 64°C G*/sin8 at 70°C Rolling Thin Film...
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