Which types of concrete are typically used in flatwork finishing?

In flatwork finishing, the use of conventional concrete and high-density concrete is most common due to their balanced properties that are ideal for horizontal applications.

Conventional concrete refers to the standard mix used in various construction applications, providing good strength, durability, and workability, which are essential for flat surfaces like sidewalks, driveways, and floors. High-density concrete, on the other hand, possesses a greater density, which enhances its strength and durability. This type of concrete is particularly beneficial in areas that may be subjected to heavy loads or where enhanced resistance to abrasion is necessary.

These types of concrete are optimal for flatwork finishing because they allow for a smooth surface once properly finished, maintain their shape under loads, and resist cracking under stress, which is crucial for the longevity and functionality of flatwork surfaces. Other types of concrete, such as lightweight concrete, although valuable in specific applications, do not perform as well in typical flatwork scenarios where additional strength and durability are paramount.