Question

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 Oven and PAV Aged Binder 3.98 2.34 1.68 Dynamic shear, kPa G*sind at 22°C G*sind at 25°C. G*sino at 28°C 3879 2987 2258 m-value S Creep Stiffness, Mpa Stiffness and m-value at-6°C Stiffness and m-value at -12°C Stiffness and m-value at -18°C 225 0.359 259 0.310 289 0.287 2

Answer 1

Spec and Column epsesents the gequixed bindes specifcoion Column the binde epresents whethex þass nol Psoperties Test Resu SPec Bindex Pao peries Flash point tempesahoe, oc 257 2 2300c Rotational Viscosity Passed Pa S 135°c O 5O 23 PaxS Passed 155 c O 20 Passed Dynamic sheax, KPa 58c fasso 64°c Passe d O. 74 Rolling thin iam Oven Aged Bindex く4 KPa Not Passed Mass loss, O 3 Passes Dynamic Sheaš,kPa 3.98 >2.2 Pa Passed Passed 64°C 2.34 >2.2 Pq 700c 168 22 2 KPo Not Passed Rogling thin FOm Oven and PAV Aed Bindeg Dynamic sheox, KPa G in ad 22°c 3879 25000 KPg Passed 2 50 C 25000 Pq 2987 P-ssoj Passed 28C 5000 KPa 22 58 . C-tęep skiffness, MPa Siffness and m.vadue aJ -6°c[225 m a.359SS 300 MPa, M2 o-3 Passad SS300 MPa, m>o3|Passed m<o.3 Not Passed O 310 ,-12°c|259 SE300MPa a.287 18c 289 1111