Concrete pumping enables construction of high-rise buildings. However, there are many problems associated with it such as blockage of the pipeline and bleeding and segregation of the concrete mix. These issues can be avoided by proper concrete mix design, choosing a suitable pump equipment, hiring skilled labor and carrying out regular maintenance.
While the challenges of concrete pumping can be daunting, they are not insurmountable. With the right expertise and equipment, such as that provided by KVN Construction, these challenges can be effectively managed to ensure a smooth and successful project.
Concrete pumping requires a good quality mix with an adequate water-cement ratio. Low-quality mixes will create friction between coarse aggregates and the pump pipes, which can cause blockage. In addition, a mix that contains too much or too little sand can lead to segregation and bleeding in the concrete.
A good quality rock pack is also vital for pumpability. It must include several different sizes of rocks and sand. It should also be well bonded with the cement paste. In addition, a good mix will have enough slurry to lubricate the aggregate as it is pumped into the pipeline.
The train consisted of three railroad cars and carried the pumps, mixers, concrete, and other equipment to the job site. The concrete was poured from two stations at the former typewriter factory. Each station included a boom pump, a truck mixer, and a concrete line that extended through the building to the core walls and elevator shafts.
Greater Accuracy and Precision
Rather than using a wheelbarrow to transport concrete around your construction site, which can be messy and costly, a lorry-mounted pump and pipeline is all you need. This means that concrete can be pumped to difficult locations or to different floors of your building, making the whole process much faster and simpler.
Blockage is a common problem during concrete pumping, which occurs when fresh concrete fails to emerge from the end of the pipeline. This can be caused by a range of factors, including improper concrete mix design, the use of gap-graded aggregate, and inadequate selection of pump equipment.
Choosing the right concrete mixer and pump for your project will help you avoid these problems. For instance, boom pumps contain a hydraulic arm that extends into the air from the truck mixer and can reach difficult locations where a line pump cannot. They’re perfect for pouring driveways, sidewalks, and swimming pools – or reaching over walls to place concrete for bridges and dams.
With greater accuracy and precision, concrete pumps save time on construction projects. They also eliminate waste, since they transfer the mixture to the desired location with fewer links in the chain than traditional transport methods, which can include wheelbarrows and concrete buggies.
In addition, concrete pump trucks don’t require any manual labour to load and transport the concrete. This helps you meet your deadlines and keep your project running smoothly.
Line or boom concrete pumps can fit in tight spaces, even those that are hard to reach. The former uses flexible hoses to transport the concrete, while the latter is mounted on a truck with an articulating robotic arm that can be maneuvered to pour the concrete in hard-to-reach places. These pumps are great for tall buildings and other structures that are difficult to access.
Concrete pumping is an effective and efficient method of delivering concrete to construction sites. However, the process is not without its challenges. One of the most serious issues is the blockage of pipelines. This is caused by residual concrete that sets inside the pipes and obstructs the flow of fresh concrete. It can be prevented by properly selecting concrete mix constituents, using the right selection of pump equipment, hiring skillful laborers, and performing regular maintenance of the pipeline.
Moreover, it is also possible to prevent segregation and bleeding of concrete mix. The former is caused by the use of gap-graded aggregate, while the latter occurs due to a high water-cement ratio. Both these issues can be avoided by using a concrete pump that uses a highly accurate metering system. By doing so, it is possible to reduce waste. Moreover, it is possible to place concrete precisely where required, even in hard-to-reach areas detectmind.