Which production method is used to achieve economies of scale in standard concrete?

• A. Batch production.
• B. Job production.
• C. Flow production to achieve economies of scale.
• D. Continuous production.

Answer: (C)

Economies of scale come from producing a standard, homogeneous product in large volumes so fixed costs are spread over more units. Flow production fits this, using a streamlined production line where concrete moves through the same sequence of steps with minimal interruptions. This setup increases throughput and efficiency, lowers downtime, and lets a plant specialize labor and machinery for high-volume output, reducing the average cost per unit. Batch production would slow things down with every batch needing setup and changeovers; job production is tailored to individual orders and isn’t efficient for standard concrete; continuous production is a nonstop form of flow, but the flow-on-a-line approach best captures how standard concrete can achieve scale economies.