Do you have a performans plan for each pumping operation.
-What reduces efficiency in the boom pumps operations?
If the answer is given with a single word, changing the setup location. This is not an easy precaution to take. However, poor planning may require more displacement than anticipated. This means loss of time and production at work. When you are working at a site, it is crucial that you manage time correctly and no labour or time is used up unnecessarily. Planning and timing is the key to productivity for ready mixed concrete companies as well as contractors.
-It is essential to use the pump efficiently in operations.
The first choice in this regard should be the determination of the boom length. Ideally, the boom should be as close to the building as possible, with easy access to all formwork without machine displacement i.e. in one setup.
-Replacing the pump location during the operation.
Now the boom sizes have grown a lot but still in many projects it is not possible to carry out the entire concrete pumping operation with a single setup. Nothing kills productivity like pump displacement in the middle of pouring. Sometimes this may become mandatory but unplanned relocations are the worst. Because they take more time and this can also cause cold joints in concrete. Therefore for setup the best and also alternative different locations, if any should be determined in advance.
-Time for replacement to relocate the pump.
The operator must first fold and close the boom. With the open boom displacement of the truck are forbidden in any case even a few meters. After the boom and the legs are collected, the pump truck is moved and the legs are re-setup in the new location then unfold the boom. This process can take at least one hour even more for pumps with large booms again to reach the concrete pouring position. For smaller boom pumps, this time may be less. But, in any case the displacement and repositioning of every size boom pumps is a serious event for efficiency in concrete operations.
-Enough space for mixer trucks.
There should be areas in the field where the mixer trucks can safely wait, even for a short time and they should be able to exit back and forth after safely discharging the concrete into the pump hopper. It is better to come from one route and return from another route after unloading. But more importantly, it is experienced in terms of efficiency. The approach of concrete mixer trucks in the new positioning of the pump will be re-determined and a risk assessment will also be required for them.
-Pump setup early in the morning.
Determining the pump setup location well and completing the operation without relocation is a very important issue for both safety and efficiency. Re-searching suitable ground and assessing other risks means wasting time. Another problem in this regard is that the concrete pumps go to the construction site mostly in the early hours and the appropriate place must be selected before the sun shines. And then the machine is relocated during the operation due to this lack of visibility. For this reason, making the pump setup planning one day in advance is of great importance for safety and efficiency.
–Fast pumping to compensate lost time.
What we lose in fast pumping is more wear and more fuel. In concrete pumping operations, the pumps are operated at fast speed to compensate for the time lost due to machine displacement or other reasons. The contractor may insist on rapid pumping to make up for lost concrete volume. Maybe there’s no harm in that. However, faster pumping means more fuel consumption and also more wear on some wearing parts. On the other hand, the maintenance cost of the machine is also increased.
-Planning for cleaning.
Each pump operator should be prepared in advance by a performance program for the operation. Everything should go within the program, including moving the pump truck. The operation manager should prepare the performance program together with the other relevant parties. For pumps with a boom over 50 meter, 30-45 minutes are allocated for the cleaning process. The most practical cleaning method is by pushing the sponge ball from the hose end. Concrete is sucked along the boom and discharged into the hopper. It is not recommended to move the machine with concrete in the boom and in case of concrete hardened including the valve, the cost can reach 15-20 thousand of Euros. At least there should be enough washing area for preliminary cleaning of pumps and mixer trucks at the operation site. Apart from this, a discharge place is required for the material left in the pump hopper and the mixer drum.
This E-Book, is consisting of fwg topics; pouring concrete operation management, performans plan, risk analysis, concrete pumps and safety, problems of big boom pumps, safety precautions, , who is responsible for safety, machine factors, human factors, site factors, preparation for operation, at the operation, evaluation of the operation etc.