DIFFERENCE BETWEEN NOMINAL AND CONTROLLED CONCRETE
Nominal concrete refers to the mix of concrete specified by its compressive strength, determined by the ratio of cement, sand, and aggregate in the mix. This is the standard concrete mix that is typically used in construction.
Controlled concrete, on the other hand, is a type of concrete that is manufactured under strict quality control measures, including monitoring of the raw materials, mixing process, and curing conditions. Controlled concrete is designed to meet specific performance criteria, such as high strength, durability, or resistance to environmental factors.
Controlled concrete is often used in critical applications, such as in the construction of bridges, high-rise buildings, and nuclear power plants. The quality control measures used in the manufacturing of controlled concrete help ensure that it meets the required standards and specifications, which is crucial for ensuring the safety and longevity of the structure.
Here are some pointwise differences between nominal and controlled concrete:
Nominal Concrete:
- Nominal concrete is a standard mix of concrete specified by its compressive strength.
- It is a general-purpose concrete mix used in non-critical applications.
- The ratio of cement, sand, and aggregate in the mix is determined based on the required compressive strength.
- It does not require strict quality control measures during its manufacture.
- It is commonly used for low-rise buildings, pavements, and small structures.
Controlled Concrete:
- Controlled concrete is a specialized type of concrete designed to meet specific performance criteria.
- It is manufactured under strict quality control measures to ensure it meets the required standards and specifications.
- The mix is designed based on the specific performance criteria required, such as high strength, durability, or resistance to environmental factors.
- Controlled concrete requires strict quality control measures during its manufacture to ensure its performance characteristics.
- It is commonly used in critical applications such as in the construction of bridges, high-rise buildings, and nuclear power plants, where the safety and longevity of the structure are paramount.
In summary, the key differences between nominal and controlled concrete are that nominal concrete is a standard mix of concrete used in non-critical applications, while controlled concrete is a specialized type of concrete designed and manufactured to meet specific performance criteria under strict quality control measures.
