RCC is

Options

A. the concrete having an iron framework inside it as a support
B. the crushed cement in which more gravel is added
C. prepared by adding calcium chloride to the limestone and calcium silicate
D. none of the above

Answer

**Step-by-Step Text Solution:**

1. **Definition of RCC**: RCC stands for Reinforced Concrete Cement. It is a construction material that combines concrete with reinforcement materials, typically steel bars.

2. **Components of RCC**: RCC consists of two main components:
- **Concrete**: A mixture of cement, water, and aggregates (sand and gravel). Concrete is strong in compression but weak in tension.
- **Steel Reinforcement**: Steel bars (also known as rebar) are added to the concrete to enhance its tensile strength, which is the ability to withstand pulling or stretching forces.

3. **Purpose of RCC**: The primary purpose of using RCC is to overcome the limitations of plain concrete. While concrete can resist compressive forces well, it cannot handle tensile forces effectively. By incorporating steel reinforcement, RCC gains the ability to resist both compressive and tensile forces, making it suitable for various structural applications.

4. **Structure of RCC**: In RCC, the steel bars are embedded within the concrete. This arrangement allows the concrete to carry compressive loads while the steel handles tensile loads, resulting in a composite material that is much stronger and more durable than concrete alone.

5. **Conclusion**: Therefore, RCC is defined as a composite material made from concrete and steel reinforcement, which provides enhanced strength and durability for construction purposes.