If subgrade is soft or weak, a thick sub- base of cheap and inferior materials well compacted should be used.

Question

Quizplus · Accepted Answer

A thick sub-base of cheap and inferior materials, even if well compacted, may not provide the necessary support and stability for the pavement if the subgrade is soft or weak. It's important to use materials that can adequately distribute loads and improve the strength and stability of the subgrade.

If Subgrade Is Soft or Weak, a Thick Sub- Base