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If subgrade is soft or weak, a thick sub-base of cheap and inferior materials well compacted should be used.(a) False(b) TrueI got this question in a national level competition.My doubt is from General Specifications of Modern Road in section Specifications, Estimation of Quantities of Materials and Transport of Civil Engineering Drawing

Answer» CORRECT choice is (B) True

The best I can explain: In transport engineering, subgrade is the NATIVE material underneath a constructed road, pavement or railway (US: railroad) track. It is also called formation level. The term can also refer to imported material that has been used to BUILD an embankment.


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