Question

What is standard consistency?

(a) Consistency which permits the Vicat’s plunger

(b) Ability of cement to maintain a constant volume

(c) Durability in sea water

(d) Free lime content

Answer 1

Correct answer is (a) Consistency which permits the Vicat’s plunger

Best explanation: Standard consistency of cement paste may be defined as the consistency which permits the Vicat’s plunger (10 mm, 40 to 50 mm in length) to penetrate to a point 5 mm to 7 mm from the bottom ( or 35 mm to 33 mm from top) of Vicat mould.