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Concrete is one of the most widely used construction materials in the world. It is used in various applications, including buildings, bridges, and roads. However, when it comes to marine structures, such as ports, harbors, and offshore platforms, a special type of concrete is required – marine concrete. In this post, we will discuss the key differences between marine concrete and normal concrete.
1. Composition
The composition of marine concrete is different from that of normal concrete. Marine concrete contains a higher percentage of cement, which makes it more resistant to the harsh marine environment. It also contains additives, such as pozzolanic materials, which improve its durability and reduce the risk of corrosion.
2. Strength
Marine concrete is designed to withstand the harsh marine environment, which includes exposure to saltwater, waves, and marine organisms. As a result, it has a higher compressive strength than normal concrete. The compressive strength of marine concrete can range from 50 MPa to 100 MPa, while that of normal concrete is typically around 20 MPa to 40 MPa.
3. Durability
Marine concrete is more durable than normal concrete. It is designed to resist the effects of saltwater, which can cause corrosion and deterioration of the concrete. Marine concrete also has a lower permeability, which means that it is less likely to absorb water and other harmful substances.
4. Cost
Marine concrete is more expensive than normal concrete. The higher cost is due to the use of special additives and the higher percentage of cement. However, the cost of using marine concrete is justified by its durability and long lifespan.
In conclusion, marine concrete is a special type of concrete that is designed to withstand the harsh marine environment. It is composed of a higher percentage of cement and contains additives that improve its durability and resistance to corrosion. Marine concrete is more expensive than normal concrete, but its durability and long lifespan make it a cost-effective choice for marine structures.
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