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The design life of flexible pavement is _________(a) 5(b) 8(c) 15(d) 30The question was asked during an interview.The question is from Design of Road Pavement topic in chapter Valuation, Reports Technical and Design Data of Civil Engineering Drawing

Answer»

Right option is (c) 15

To explain: The design life of flexible pavement is considered as 15 years, it may last even further if properly maintained.

The wheel load ACTING on the pavement will be distributed to a WIDER area, and the stress decreases with the depth. Taking advantage of this stress distribution characteristic, flexible pavements normally has many layers. Hence, the design of flexible pavement uses the concept of LAYERED system.



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