Which equipment is commonly used for pouring concrete?

Concrete mixers and finishing trowels are essential pieces of equipment used in the concrete pouring process. Concrete mixers are specifically designed to combine the necessary ingredients—cement, water, and aggregates—into a uniform mixture, making them instrumental in preparing the concrete for pouring. Their rotating drum ensures that the mixture is thoroughly blended, which directly affects the strength and workability of the finished product.

Finishing trowels come into play after the concrete has been poured and set to some extent. They are used to smooth out the surface of the concrete, which is a crucial step in achieving the desired finish. The combination of these tools highlights the entire process involved in pouring and finishing concrete.

The other options refer to equipment that has different primary functions. Hoists and cranes are primarily used for lifting heavy materials, while excavators and bulldozers are large machines used for site preparation, digging, or moving earth. Aggregate feeders and air compressors serve specific roles in the construction process, such as transporting aggregates or supplying compressed air, but they are not typically utilized directly in the pouring of concrete. Hence, the combination of concrete mixers and finishing trowels is most relevant for the task at hand.