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As soon as sufficient length of premix has been laid, rolling should be started with 2 to 4 tonne roller.

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As soon as sufficient length of premix has been laid, rolling should be started with 2 to 4 tonne roller.

(a) True

(b) False

This question was posed to me in exam.

I'm obligated to ask this question of General Specifications of Modern Road topic in division Specifications, Estimation of Quantities of Materials and Transport of Civil Engineering Drawing

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Right option is (b) False

Explanation: As soon as sufficient length of premix has been laid, rolling should be started with 7 to 8 tonne roller. Rolling should commence at the edge and progress towards the centre. After light rolling high spots or depressions which become apparent should be corrected by removing or adding premix and then rolled to thorough compaction.

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