What is the process of Cold Feed Aggregate Proportioning?

• A. The process of storing stockpiles into a single pile.
• B. The process of combining stockpiles into a composite blend that meets mix design specifications.
• C. The process of dumping aggregates into piles.
• D. The basic elements of batch plant.

Answer: (B)

Cold Feed Aggregate Proportioning is the process of selecting and proportioning different aggregates from stockpiles into a single blend that matches the mix design specifications. Each material is fed into the cold feed system in the right proportion so the resulting blended aggregate achieves the target gradation and meets the job mix formula before it goes to the dryer and mixer. This ensures consistency in the finished asphalt and helps control quality. It’s not simply storing stockpiles into one pile or dumping into piles, and it isn’t about the basic elements of a batch plant.