A concrete sample has slump = 80 mm. Determine the workability grade and suitability for: Beams, columns, and slabs

 A concrete sample has slump = 80 mm. Determine the workability grade and suitability for:

• Beams, columns, and slabs

Solution:

Step 1: Identify slump grade (IS 456:2000)

Slump (mm)	Workability
0–25	Very low
25–50	Low
50–100	Medium
100–175	High

• Given slump = 80 mm → Medium workability

Step 2: Suitability

• Medium workability concrete is suitable for beams, columns, and slabs that are reinforced and have normal compaction.

✅ Answer: Medium workability; suitable for beams, columns, slabs.