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Q: Which of the following type of coarse aggregate is preferred in road construction, so that greatest density of road layer is achieved?
  • A. All-in aggregates
  • B. Single-size aggregates
  • C. porous aggregates
  • D. Any type of aggregates
Correct Answer: Option A - All-in aggregates, which refer to a mixture of fine and coarse aggregates such as sand and gravels and are used as base material for under foundations and roads construction; have also traditionally been used for the production of concrete in low cost housing in Ghana. The used of All-in aggregates, so that greatest density of road layer is achieved.
A. All-in aggregates, which refer to a mixture of fine and coarse aggregates such as sand and gravels and are used as base material for under foundations and roads construction; have also traditionally been used for the production of concrete in low cost housing in Ghana. The used of All-in aggregates, so that greatest density of road layer is achieved.

Explanations:

All-in aggregates, which refer to a mixture of fine and coarse aggregates such as sand and gravels and are used as base material for under foundations and roads construction; have also traditionally been used for the production of concrete in low cost housing in Ghana. The used of All-in aggregates, so that greatest density of road layer is achieved.