Civil Engineering - Concrete Technology - Discussion

It should be RAPID HARDENING CEMENT because it has high heat of hydration and high shrinkage which renders it unsuitable for construction of thin RCC structures.

Blast Furnace Slag Cement (BFSC) is a good option for thin R.C.C. structures!

BFSC has:
- Lower heat of hydration
- Reduced shrinkage
- Improved durability
- Resistance to sulfate attack

It's a suitable choice for thin R.C.C. structures because it:
- Reduces the risk of cracking
- Provides better workability
- Offers improved long-term performance

So, to correct my previous response, Blast Furnace Slag Cement is a suitable option for thin R.C.C. structures, whereas Rapid Hardening Cement is the one to be avoided.

A blast furnace is a low-heat cement so here diff between a blast furnace and low-heat cement is clear. Blast furnace slag cement and low-heat cement are both used for dams etc massive concrete work and they give low strength in the initial days.

For thick structure - low heat cement.

For thin structure - blast furnace slag cement.

The correct answer is: **low heat cement**.

Explanation:

For the construction of *thin reinforced concrete (R.C.C.) structures*, the *type of cement to be avoided* is *low heat cement*.

Here's why:
*Low heat cement** is designed to produce *less heat of hydration* during the setting and hardening process. This is useful for large structures (like massive foundations or dams) where excessive heat generation could lead to cracking due to thermal expansion.

However, *thin R.C.C. structures* typically do not have the same concerns about heat buildup, and the slower rate of strength development associated with low-heat cement may be disadvantageous for these applications.

The correct answer is D because we only use blast furnace slag cement for thick so we will avoid it for thin RCC structures.

The given answer is correct, option D look at the type of cement to be avoided.

Rapid hardening is correct.

Rapid hardening is the correct answer. Because they react with steel and its use in Highway patch work.

Correct answer should be low heat cement.