A concrete pumper is versatile, portable unit used to pump structural concrete, grout, wet screeds, mortar, shotcrete, foamed concrete, and sludge. They're also used for repairing underwater concrete, filling fabric forms, placing concrete in heavily reinforced sections, and building bond beams for masonry walls.
Trailer pumps are wheel-mounted units that are pulled behind a truck. They are called line pumps because they pump various mixes through flexible hose or "lines". They are extremely versatile and can pump concrete almost anywhere from high-rise structures, underground tunnels and shafts and even underwater for marine construction. Their impressive capabilities significanly contribute to what is actually possible and practical to construct or build with concrete.
For some jobs, when concrete is delivered to a job site by a concrete truck (for example, pouring a backyard patio) is a labor intensive: pouring the concrete from the concrete dump truck into a wheelbarrow, pushing the wheelbarrow to the patio, dumping the concrete and scraping it out and then returning to the concrete truck. To reduce the time the concrete truck spends at the job, additional employees are needed to improve the speed at which the concrete is transferred.
A concrete pumper can be used to efficiently pour concrete from the concrete truck to the job site, e.g. patio, driveway, grout wall, etc. via a hose.
This provides the most efficient and cost effective method to transfer concrete from a concrete truck to the job site.