Even an inexperienced builder understands that the durability of any structure depends on the quality of the materials used. There is no sense in explaining where and when a concrete solution is used, because you can answer briefly - almost everywhere and always.
The simplest of course, to buy the finished solution in the required quantity. But here there are difficulties. First, will the machine be able to drive directly to the foundation formwork? If so,( secondly) how to scatter the whole volume on it? This takes time, and a simple machine due to the fault of the Customer will have to pay at least 1,100 rubles per hour. The only solution is to prepare the solution yourself.
But we mentioned the quality. To achieve it, making kneading in the trough, and even if materials with large fractions were used as filler, is rather problematic. In addition, you need to consider how much it can be cooked in 1 time?
For the private sector, the best option is a concrete mixer installed directly on the site. Buy it for a short time, for a one-time use, it makes no sense. The cheapest model, at 65 liters, costs about 6,300 rubles, the unit for 130 liters - from 8,500( for details on how to choose it, read here).But then where to put it, concrete mixer? The buyer still have to look.
To lease is also not cheap. In a day - approximately from 400 to 550 rubles. And if the owner is not on vacation, but builds, for example, in the evenings and on weekends?
It should be understood that the container should be cleaned as much as possible. If there are irregularities on its inner surface( pieces of dried paint or something like that), then this will not be possible. Then the whole solution can not be selected, part of it will remain inside and harden. Such a concrete mixer will not last for long, since in it will gradually accumulate solidified concrete.
"Manual" model
It is clear that in such a construction, the engine is not used for mixing the solution - everything is done manually. What is needed for the work on the assembly, everyone determines himself.
For example, the fastening of parts can be made welded, or they can be "bolted".To whom as it is more convenient.
Capacity
The idea is that the drum will be the drum into which the components for the preparation of concrete are loaded. For qualitative mixing, it should be free to rotate about the longitudinal axis.
It remains to understand how to load and unload? For this, the door is arranged. Naturally, on the side of the tank will have to make a cutout. The fastening of such a "window" is made with the help of loops. It is only necessary to provide for the presence of a latch( so that it does not open during operation) and a sealant( to seal the cracks between the wall and the door).
On both sides in the barrel( in the lid and bottom), precisely in the center holes are made, into which a small pipe is inserted. It will serve as a lever, an "engine".This raises the question of how to fix it, given the thickness of the barrel walls? You can weld directly into the lid and bottom( who can), you can - to the flanges, which are pre-fastened at the entrance and exit of the pipe from the barrel on the bolts.
Stand
It is clear that a loaded barrel weighs a lot. Plus - it will have to twist. Therefore, the foundation should be not only strong, but also stable.
The material for such a support can be either metal or wood. Used corners, profiles, thick boards. The construction of such a base under the barrel is 2 tripods, which are fastened with longitudinal stops( runners).Their height should provide convenience to work with a concrete mixer. It is necessary to think about the fact that such an "assembly" was not difficult to move across the territory.
Here there is a nuance - the tripods can be the same, then you have to put some kind of dishware like a trough to drain the solution under the barrel( the video is well shown), since the container will be located horizontally. You can make racks different in height, but then the solution will have to either be removed manually, or come up with a mechanism for changing the position of the barrel. The latter will only complicate the construction.
On the tops of the tripods, it is possible to install trimming pipes of slightly larger diameter, in which the lever will rotate. If you strengthen the flanges with bearings, then it will be easier to work. But it is somewhat more difficult to fulfill.
Tips for
It is necessary to provide that such a concrete mixer can be moved alone. Therefore, the barrel must be removed from the frame.
You can also build a more complex structure by automating the entire process. To do this, various devices are used as an actuator. Here are just a few options:
- el / engine;
- bicycle drive;
- gasoline engine.
To facilitate manual work, you can also install a gearbox. Each thinking host chooses the optimal design, and we told the very simplest.
