To obtain cement dry powder, limestones and shales or their slurry, burnt in a rotary kiln at a temperature between 1100 °C – 1200 °C.

After casting, an ordinary cement concrete on drying expands.

Gypsum in cement decreases the setting time.

Hydration of cement is due to chemical action of water with dicalcium silicate and tricalcium aluminate.

Vicat apparatus is used for soundness test.

The commonly used material in the manufacture of cement is graphite.

For road pavements, the cement generally used is rapid hardening cement.

Hardening of cement occurs at uniform rate throughout its age.

Kerosene is used as fuel in the production of cement.

Reasons for testing materials. (Select all that apply)

What property of Portland cement is determined using the Vicat apparatus? (Select all that apply)

It is the measure of correct amount of water added to a specific quantity of cement to form a workable cement paste.

Test performed by a company receiving new supplies to make certain that the shipment meet the standard called for in the order.

Test done by a company on their own products prior to shipment to ensure that the product meets the manufacturer's standard.