Question

Discuss the effects of temperature on hydration of Portland cement.

Answer 1

Answer:

Portland cement

It is a type of cement which constitutes of calcium,silica and Alumina.

It is widely used in construction as its economical and good in strength.

When water is added to cement heat generated is known as heat of hydration which liberates heat and depends on temparature.

Hydration ensure the strength and Durability.

Effect of Temparature on hydration of Portland cement

1 with increase in temperature increases the rate of hydration.

2. With increase in Temperature Early compressive strength will be achieved.

3.at low Temperatures cement may form micro structure which leads to decrease in strength properties.

4.low temparatures reduces the hydration rate but doesn't effect the hydrate reaction.

5.temaprture changes on hydration shows effect on setting time of cement.