Quiz on Cement

Which is NOT a raw material for cement manufacture

• Limestone

• Clay

• Asbestos

• Gypsum

Which constituent of cement is used for delaying setting time

• Limestone

• Gypsum

• Clay

• Iron Oxide

After Hydration what product gives strength to concrete

• C-A-H

• C-S-H

• C3S

• C2S

Which of the Bough's compounds hydrate first?

• C2S

• C3S

• C3A

• C4AF

What cement is used in massive constructions like dams

• Low heat emitting cement

• Rapid Hardening cement

• Pozzolana cement

• High strength cement

What gives gradual strength to concrete

• C3S

• C2S

• C3A

• C4AF

Initial setting time of cement should not be less than ___

• 45 minutes

• 30 minutes

• 10 hours

• 10 mins

Final setting time should not be more than

• 600 mins

• 100 mins

• 8 hours

• 1000 mins

Rapid hardening cement can be created by increasing the percentage of

• C3A

• C2S

• C3S

• C4AF

Grades of cement are classified on the basis of

• Tensile strength

• Colour

• Compressive strength

• Durability