Does Adding More Cement Make Concrete Stronger?

(Does Adding More Cement Make Concrete Stronger?)

Does adding more cement make concrete stronger?

The answer to this question depends on the amount of water used and what type of concrete you are making. In most cases, the answer to this question is no, adding more cement does not increase the strength of concrete.

A concrete mix is composed of aggregates, such as sand or stone, and cement that are mixed together to form a paste. The proper mixture of these components forms a strong and durable material that can be used to build anything from concrete structures to sidewalks, driveways and patios.

Creating an efficient and durable concrete mix requires a careful balance between five key factors: durability, strength, density, workability and appearance. These factors are influenced by the hydration reactions that occur when the mix is poured, the water-to-cement ratio and other important characteristics of the cement itself.

Cement consists of many different compounds, including calcium silicate hydrate. These hydrates bind with aggregates to make concrete hard.

Water is the main ingredient that causes this hydration process to happen. The hydration reaction consumes a specific amount of water, but it leaves behind some extra water that will remain in the microstructure pore space (source).

If this excess water stays in the concrete, it will create holes in the final product as it evaporates. These holes weaken the strength of the concrete and can lead to cracks forming over time. This is especially true if the concrete is exposed to freezing-thawing cycles. These cracks can be very dangerous and can lead to serious structural damage to the structure.

(Does Adding More Cement Make Concrete Stronger?)