Civil Engineering - Building Materials - Discussion

I think low heat cement have high compressive strength.

Low heat cement have high Ultimate strength.

Low heat cement have less compressive because it shows high ultimate strength.

Low heat cement generates low heat of hydration but the total heat generated is the same as the normal cement. We use low heat cement in mass concreting to avoid temperature stress in the internal zone and cracking. It does not affect the strength of concrete. Because strength depends on mix design we use and cement is one of the ingredients of concrete. Cement is not only the one who gives the strength in concrete. Initial and Final setting time is normal.

Hence D answer is correct.

Low heat concrete is for use to dam construction purposes.

How does low heat cement has less compressive strength?

For low heat cement heat of hydration is very low compare to other cement I think.

I think strength is not low.

I think D is the correct answer.

Low heat cement has less early strength.

But ultimate strength is same as other cement. It is used for mass concrete work.