Which of the following variable factor is/are to be considered in connection with specifying a concrete mix proportioning? Water – cement Ratio Cement – Aggregate Ratio Gradation of the Aggregate Consistency

Which of the following variable factor is/are to be considered in connection with specifying a concrete mix proportioning?

1. Water – cement Ratio
2. Cement – Aggregate Ratio
3. Gradation of the Aggregate
4. Consistency

1). a and b
2). a and c
3). a, b and c
4). a, b, c, and d

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