Which equipment is commonly used for mixing concrete?

A concrete mixer is specifically designed for combining concrete ingredients—cement, water, aggregates, and, in some cases, admixtures—into a homogeneous mix. The mixer's primary function is to ensure that all components are thoroughly blended, which is crucial for achieving the desired strength and durability in the final concrete structure. Depending on its type, a concrete mixer can be portable or stationary, and it often features rotating drums to facilitate even mixing.

In contrast, concrete vibrators are utilized to eliminate air bubbles and ensure proper compaction of the mixed concrete within forms. A concrete pump is employed for transporting the mixed concrete to the location where it is needed, particularly in hard-to-reach areas or for high-rise construction. Meanwhile, a concrete saw is used for cutting cured concrete, not for the mixing process. Therefore, the only equipment among the options provided that is directly associated with mixing concrete is the concrete mixer.