Final answer:
The process by which concrete achieve hardness is called curing. It's a chemical reaction known as hydration that solidifies the mixture. Concrete is a versatile building material that hardens in molds to simulate the strength of stone.
Step-by-step explanation:
The process by which concrete achieves hardness is known as hydration. Concrete is a mixture of cement, water, and aggregates such as sand and gravel. When these components are combined and water is added, a chemical reaction called hydration occurs, during which the cement particles react with water to form a solid mass. This solid mass hardens and provides the strength and durability of concrete.
The process by which concrete achieves hardness is known as curing. This process involves the chemical reaction of the cement with water, known as hydration, which results in the solidification and strengthening of the mixture. Concrete is a Roman invention consisting of a mix of lime mortar, pebbles, sand, and water, which is poured into molds and hardens to function like stone. Over time, it was discovered that concrete's reliability and predictability improved significantly, leading to its prevalent use in modern construction. Thanks to concrete's versatility and the relative ease of its production, it became possible for unskilled laborers to create robust structures at a lower cost than quarrying marble or other stones, while also taking advantage of its liquid nature to mold spaces as needed.