Engineering Materials·MCQ explained

Which process comes immediately after batching in the manufacture process of concrete?

Try it first: pick an option, then read the explanation.

Correct answer: C. Mixing

Detailed Explanation: Mixing Follows Batching in Concrete Production

Why C (Mixing) is correct: Batching is the measurement/weighing of ingredients; the immediate next step is mixing, which combines those measured ingredients (cement, aggregates, water, admixtures) into a uniform, workable concrete. You cannot place, transport, compact, or cure concrete until it has been mixed.

Complete Concrete Production Sequence

StepOperationPurpose
1StorageStore cement, aggregates, water, admixtures in proper conditions
2BatchingMeasure each ingredient accurately (by volume or weight)
3MixingCombine all ingredients into a homogeneous concrete mix
4TransportationMove fresh concrete to the point of placement
5PlacingDeposit concrete in the formwork
6CompactingRemove entrapped air; densify the concrete
7FinishingScreed, float, trowel the surface to required texture
8CuringMaintain moisture and temperature for strength development
  • Batching → Mixing (immediate next step).
  • Minimum mixing time: 2 minutes for machine mixing (IS 1791); 1.5 minutes in a transit mixer.
  • Mixing ensures uniform distribution of cement around each aggregate particle.