Question

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 Stiffness, m-value, -18°C Creep Stiffness, S, MPa Creep Stiffness, m-value, -24°C Creep Stiffness, S, MPa 0.315 185 0.293 195

Answer 1

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Max. Design Temp PG 46 Aula 이-1 I al 1 1401 1-11 | 261-3 40 -101-161721 1 1 40-10-16le 2-3 아 아 Gle -2-3-1 PG 52 PG 64 PG 70 PG 76 PG 82 2 zel 3 Original Flash Point Rotational Viscosity DSR G*/sin δ (Dynamic Shear Rheometer) s3 Pa-s 135°0 e 1.00 KPa 46 52 58 64 70 /6 82 (Rolling Thin Film Oven) RTFO, Mass Change 1.00% DSR G*/sin δ (Dynamic Shear Rheometer) 2.20 kPa 46 52 58 64 70 76 82 Pressure Aging Vessel) PAV 20 hours, 2.10 MPa 90 DSR G*sin 8(Dynamic Shear Rheometer) 10 7 4丨25丨22| 19| 16| 13| 10| 7| 25| 22| 19| 16| 13| 31| 2B| 25| 2 19| 16| 341 31 22| 25| 22| 191 azi 34|31 281 251 401 371 34| 31| 23 BBR S(creep stiffness) & m-value (Bending Beam Fiheometer) 90 100 100 100 110) 100110 100(110) Intermediate Temp. I Max. +Min N21+ 4 5000 kPa S s 300 MPa m 2 0.300 243036612-18-24 30 36-5 12-18-24 30) 0-5 -12-18 24 .30 05 12-18-24 30 0-5 12 18 24 0-6 12 -18/24 188 R m alue 2 0.300 and L eep slin ess s between 300 and 600, the Direct Tens on failure strain requirement can t u勞t in lieu the creep sti nes requirement DTT (Direct Tension Tester) 1.00% 241-301.35 01-GI-12-18 30-36|-61-121-181-241-3이 이-Bİ-12-181-24 -3이 이-61.121.181-24-301 0 -61-121-181-241 Ol-61-121-18-24