Abstract
Based on the analysis of several asphalt mixtures in Indonesia, generally, asphalt mixture has stiffness modulus (E1) varies from 2000 MPa to 5000 MPa. At the subgrade layer, soil has CBR value at 3% to 6% which is equivalent to modulus (E3) at 30 MPa to 60 MPa. The second layer would be a base layer with thickness considered to be a constant value at 200 mm and stiffness modulus (E2) at 100 MPa. The other characteristic is Poisson’s Ratio (ν). Poisson’s Ratio for surface (ν1), base (ν2) and subgrade (ν3) was taken as 0.35; 0.40; and 0.45 respectively. Considering the material characteristic above then design nomograph were developed. The nomographs were inspired by Nothingham and there are then 4 types of nomographs related to a subgrade modulus. Pavement thickness result designed using mechanistic procedure was thicker than empirical method.
