The following structure is proposed as first trial for the
The following structure is proposed as first trial for the design of a new infrastructure: | Layer 1- HMA: 5
cm, E = 2000 MPa, PR = 0.45 Layer 2 - HMA, 10 cm, E = 1800 MPa, Poisson ratio = 0.45 I Layer 3 -
Unbound Base, 20 cm, E = 200 MPa, PR = 0.25 Layer 4 - Subgrade, semi-infinite, E = 140 MPa, Poisson
ratio = 0.25 The results of the damage analysis following the Asphalt Institute methodology are: DAMAGE
RATIO AT BOTTOM OF LAYER 2 = 3.207 DAMAGE RATIO AT TOP OF LAYER 4= 1.089 MAXIMUM DAMAGE
RATIO = 3.207. Describe why the structure needs to be redesigned, and how it can be modified.
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