Page 13 - UNIT 5- FLEXIBLE PAVEMENT DESIGN

Civil Engineering Department | DCC3113 : Highway & Traffic Engineering

Environmental Effect

• Environment in which a flexible pavement is to be established has an important influence
on the behavior and performance of the various materials in the pavement and sub-

grade.

• Probably the two climatic factors of major significance are:

i. Temperature

ii. Moisture

Seepage
from
highlands Water ponding

Seepage through Seepage through
shoulder pavement

Water content rises in subgrade

Subgrade looses strength and stability

Figure 7-2: Environmental Effect

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Prepared by : SITI ZURAIFA BINTI MD SAH, zuraifa@pmu.edu.my