The Base layer in a Flexible pavement do not have to be of high quality material
ID: 1711060 • Letter: T
Question
The Base layer in a Flexible pavement do not have to be of high quality materials hut the sub-base layer must be. Pavement construction costs will be lowered if the engineer chooses a longer roadway service life time since costs will spread over a longer period. The Surface layer is the most important layer in a flexible pavement. Soils with higher CBR values require less thicknesses of overlaying Flexible pavement layers according to the British Design method. One of the Subbase layer's functions is to protect the pavement from water damage.Explanation / Answer
5. Flexible pavements consists of connected layers with high qulity material at top surface i.e the wearing course.
So the given statement was false.
6. Yes , the statement was true.
7. All the layers are important in pavements. but sugrade is the most important one in case of flexible pavements. Hence the given statement was wrong.
8.yes the statement was correct
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