Answer / amiya ranjan pattnaik

for DBM The acceptance criteria for tests on density shall
be subject to the condition that the mean value is not less than
the specified value plus:
[1.65 – 1.65/(No.of samples)0.5 ]*times the standard deviation.

Answer / ashu garg

98% of design density for surface course & 95% of design
density for under layer as per morth mannual for
bitumineous costruction.

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