Properties of cement

Which of the following is NOT a type of cement?

• Liquid cement

• Natural cement

• Hydraulic cement

• High Alumina cement

Which of the following is NOT a chief component of Portland cement?

• C3S

• C2S

• C3A

• C2A

What is NOT added during the manufacturing process of dry cement?

• Clay

• Water

• Gypsum

• Limestone

In the manufacturing process of cement, at what temperature is the kiln heated up to?

• 1000°C

• 1500°C

• 2000°C

• 2500°C

During manufacturing of cement, what are crushed in the crusher?

• Clay and Iron

• Clay and Calcium

• Clay and Limestone

• Clay and Aluminium

What is the function of C₂S?

• Grey colour

• Quick setting

• Gives initial strength

• Gives long term strength

What is the apparatus use for setting time of cement in accordance with British Standard?

• Le chatelier

• Vicat apparatus

• Compacting factor

• Compressive strength machine

What is the British Standard test for cement using Le chatelier?

• Strength

• Workability

• Soundness

• Setting time

What is the purpose of using cube testing machine for cement?

• Determine its workability

• Measuring its compressive strength

• Detect the presence of lime in cement clinker

• Determine its consistency, initial and final setting time

Identify the THREE (3) stages of the hydration process above in correct order.

• Setting, Dormant, Strength gain

• Setting, Strength gain, Dormant

• Dormant, Setting, Strength gain

• Strength gain, Dormant, Setting