PCCAS Ground Tire Round Robin.

PCCAS Ground Tire Round Robin.

PCCAS Ground Tire Round Robin April 6,2015 • The samples will be tested as follows: • Sample A PG 88-16 • Sample B PG 82-22 • Sample C PG 88-22 • T...

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PCCAS Ground Tire Round Robin April 6,2015

• The samples will be tested as follows: • Sample A PG 88-16 • Sample B PG 82-22 • Sample C PG 88-22

• They are all field samples. • This is the second study with 3 different suppliers involved.

SAMPLES

Property

Test Method

Sample B-1 PG 82-22

Sample B-2 PG 82-22

Sample B-3 PG 82-22

B using 28 grams PG 82-22

82 1.60 1.44 64.2

82 1.76 1.60 65.6

82 2.07 1.88 65.0

82 2.84 2.58 65.6

82 3.02 2.71 63.9

82 3.24 2.91 64.1

82 3.67 3.21 60.9

82.5

80

82.5

82.5

Original Binder Dynamic Shear, Test Temperature, °C G*/sin (delta), kPa G*, kPa Phase Angle, ° RTFO Test Aged Binder Dynamic Shear, Test Temperature, °C (delta), kPa G*, kPa Phase Angle, °

G*/sin

Elastic Recovery, % (25°C)

come out in oven even tilting it

Mass Change, %

did not do

RTFO Test and PAV Aged Binder PAV Aging Temperature, °C Dynamic Shear, Test Temperature, °C (delta), kPa G*, kPa Phase Angle, °

110 34 578 680 58.3

110 34 424 514 55.5

110 34 376 457 55.3

110 34 485 579 56.8

Test Temperature, °C

-12

-12

-12

-12

S-value, MPa

121

121

107

96

0.342

0.359

0.352

0.372

G*sin

Bending Beam Rheometer

M-value