As per IRC recommendations, the sub-grade or sub-base layer whatever underlies the concrete wearing slab, in concrete pavements, must confirm to the requirement that

Question

Quizplus · Accepted Answer

The IRC recommendations for concrete pavements specify that the sub-grade or sub-base layer must be free from soft spots, extend at least 30 cm wider on either side of the width to be concreted, and be properly drained. Therefore, all the listed options are correct requirements.

As Per IRC Recommendations, the Sub-Grade or Sub-Base Layer Whatever