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Which material is commonly used as a filler in highway construction to improve the stability of the pavement layers?

36. Which material is commonly used as a filler in highway construction to improve the stability of the pavement layers?

1. Concrete
2. Bentonite
3. Aggregate
4. Asphalt

Answer

The correct answer is: C) Aggregate

Explanation

In highway construction, fillers like crushed stone, gravel, and sand are commonly utilized to give support, stability, and drainage capabilities.