Question

The grade of cement is determined by testing cement mortar of proportion of cement to sand:

• A. 1 : 2.0
• B. 1 : 2.5
• C. 1 : 3.0
• D. 1 : 3.5

Answer 1

The correct option is C 1 : 3.0

Ans. (c) : As per IS 4031 (Part-6) for testing of cement mortar take 55 gm of standard sand (Ennore sand), 185 gm of cement (i.e. ratio of cement to sand is 1:3) and after mixing, the mortar is filled in a cube of mould of size 7.06 cm.