Tap the steps of the IS Method of mix design in the correct order.

Exercise and reference answers

Steps

1. Compute target mean strength = fck + K·σ
2. Select water/cement ratio from durability and strength curves
3. Read free-water content from Table 10.7 for the slump
4. Read sand percentage of total aggregate from Table 10.8
5. Apply corrections from Table 10.9 for actual conditions
6. Cast trial mix and verify against target

Explanation