What type of concrete is commonly used in foundations?

Reinforced concrete is the type commonly used in foundations due to its enhanced tensile strength and durability. Foundations must support significant loads and resist various environmental factors, such as soil movement and moisture, making reinforced concrete a preferred choice. This composite material consists of concrete along with steel reinforcement bars (rebar) or mesh, which provides additional strength and helps prevent cracking, thereby maintaining the integrity of the foundation over time.

Using reinforced concrete allows builders to create foundations that can effectively handle the stresses imposed by the weight of the structure and resist lateral forces from the soil. This makes it particularly suitable for both residential and commercial construction where stability and longevity are paramount. While other types of concrete like high-strength concrete and poured concrete can have their uses, reinforced concrete is specifically designed to meet the rigorous demands placed on foundations. Precast concrete, although used in certain applications, is less common for foundations directly poured on-site, which is typically favored for its adaptability to specific site conditions.