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Question
Minimum thickness of the base of a flexible pavement is
A.
15 cm
B.
20 cm
C.
10 cm
D.
5 cm
Answer ( Option C)

10 cm

Solution

Flexible pavements: 
• Flexible pavements are so named because the total pavement structure deflects, or flexes, under loading. 
• Flexible pavement may be constructed in a number of layers and the top layer has to be of the best quality to sustain maximum compressive stress, in addition, to wear and tear. 
• The lower layers will experience a lesser magnitude of stress and low-quality material can be used. 
• The thickness of the base of a flexible pavement is 10 - 30 cm.
           

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