A trailer pump is a type of equipment used to transport concrete or other materials at construction sites. It is mounted on a trailer, making it easy to tow to different locations. The pump can efficiently move large volumes of concrete through hoses to reach areas that are difficult to access. These pumps are often used in conjunction with a concrete mixer to ensure a continuous supply of material. They are essential for large construction projects, such as building foundations, bridges, and roads, where precise placement of concrete is required for structural integrity.