A 42M Concrete Pump is commonly used to pump concrete on the job site. If you work in construction, you have most likely seen a pump being used or perhaps have operated one yourself. The concrete pump helps the job be completed much faster rate as the pump can access hard to reach places and place the concrete with ease.
In cold weather, it can be difficult to pump concrete as the mixture can be affected by the temperature. Construction needs to continue despite the cold weather, but how does one operate the pump when the temperature is freezing? Concrete will freeze in the boom or other parts of the machinery when the temperature is too cold. The concrete can freeze in the hopper as well, stopping the concrete from flowing through the pipeline.
To avoid such freezing in the 42M Concrete Pump, operators can mix the concrete by using hot water. The concrete will hold to the hottertemperature and not freeze during the delivery time frame and through the waiting period. During priming, slurry will need to be mixed with hot water. The slurry can freeze to the walls of the pipeline and this will restrict the flow of the concrete which in turn creates a blockage in the pump. Avoid this from happening by having the slurry mixed with hot water on cold days on the construction site.
Another trick is to use insulation. Some construction companies will wrap the boom pipeline with insulation to keep the concrete from freezing. The insulation used is usually a foam tube that has been cut to house the pipeline. The tube will be wrapped around the pipe and then taped together. The foam will hold heat which helps the concrete to flow normally.
Yet another trick to use when operating a 42M concrete pump in cold weather is to preheat the boom pipeline. This can be done by using an exhaust stack located on the truck’s engine. An exhaust hose will need to be created to withstand high temperatures and connected to the truck to provide heat. The operator will place the special hose over the exhaust pipe and then put the other end into the boom’s tip hose. This will move warm air into the pipeline and it will exit out the hopper.
When doing this method for warmth, it is essential to have an open pathway for airflow, allowing the heat to exit. When there is no exit, the hot air will move backwards and this will create back pressure to the engine of the boom pump.
If you do have problems with freezing concrete, rest assured that the concrete will not set when it freezes. As soon as the machine has been moved to a warm environment, for example a garage, the concrete will thaw out. The unit will need to be cleaned of the old concrete and fresh concrete added before the act of pumping concrete can begin again.