CIVE 472
(50 pts) Nebraska Department of Transportation (NDOT) is interested in a mechanistic design approach for Nebraska pavements. You were hired to...
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5. (50 pts) Nebraska Department of Transportation (NDOT) is interested in a mechanistic
design approach for Nebraska pavements. You were hired to design a pavement system (3-
layer) with a surface layer, a 12-inch unbound crushed aggregate base and a plastic clay
subgrade as shown below. The surface layer can be either asphalt concrete (AC) layer or
Portland cement concrete (PCC) layer. Using the KENPAVE software. complete the
thickness design of the pavement with AC and PCC surface layer, respectively and
compare/discuss your design results.
4,500 1b 4,500 1b
100 psi
1100 psi
3a
Surface Layer: Either AC or PCC, E1, hi, v
Unbound Crushed Aggregate Base, E2, h2 = 12 in., v = 0.40
Plastic Clay Subgrade, E3, h3 = semi-infinite, v = 0.45

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