What is recycling concrete and what is the essence of
The concept of recycling concrete means recycling this material. And this is not just an urgent issue, but a very serious problem.
After all, very often there are situations when the owner of the object or the foreman simply do not know what to do with the stone piles of the old mortar. And really - such material, as a rule, does not have clear forms, which means that using it “as is” or problematic or completely unrealistic.
There are still several solutions to the problem - they are discussed in the table below.
| Old concrete | Solution features |
| 1. Leave everything right on site. | Here it is necessary to understand more. Leave - it turns out or bury or create garbage heaps in any area of the territory. The method has the right to life, but there is a “pitfall” - various inspections and environmental services can make a fuss. And this is fraught with fines, strict regulations and even the fact that the object cannot be handed over. |
| 2. To detail manually. | In this case we mean that the concrete is cracked with sledgehammers or powerful perforators into the smallest pieces. Such waste can be reused in a mixture (as a filler). However, this method can be implemented only in the case when there is an opportunity to attract a large number of people to the case. And it is expensive, and besides, such work will not be quick in time. |
| 3. Sell. | In principle, a fairly good option, but there are certain difficulties. First, the buyer still needs to be found, and this is a time that is not always there. · Secondly, it is unlikely to find a buyer for uncrushed concrete. |
As you can see, the conclusion suggests itself that the best way to solve the problem of disposal of such concrete would be a certain method by which the processing would be as automated as possible. In addition, it is also important that recycling is really fast.
Therefore, manual labor is definitely not suitable here - its price is high, plus it is still ineffective if there is a large amount of work to be done.
Pay attention also to the fact that some picks and crowbars can not do here. In any case, workers will have to purchase power tools: chippers, drills, etc. Which again is not cheap.
The best solution here is the use of crushing and screening complexes, which have powerful magnetic separators. Naturally, the equipment of this type is very expensive, and it is expensive to use it for rent. But with huge amounts of old solution - this technology is appropriate.
This is with regard to solid concrete remaining from the dismantling of buildings and structures.
But in addition to such waste there is another problem related to the recycling of concrete - the need to organize the recycling of concrete waste, which form the plants themselves.
After all, even the solution preparation instruction itself, by default, assumes that there will be a lot of mix on the walls in production bins and in automixers (from 4 to 10% of the total concrete volume). And usually all this merges into a pit on the territory of the plant, and then transported to landfills.
But such an approach is expensive, labor-intensive and, moreover, the ecological situation is deteriorating. What to do?
In general, there is one very interesting and effective solution - let's talk about it in more detail.
Purchase or rental of equipment for recycling liquid concrete
Under the technique refers to the use of a vacuum loader and special recycling installation, through which the process of separation of concrete into components.
Please note that the use of modern technology of this kind is generally a very profitable business. For example, the asphalt concrete recycler EM 3200 is able to repair pits and road failures directly from the remnants of the road surface - right on the spot. The remains of asphalt are poured into a special bunker, and then the working mixture is made from them.
That is, it turns out that such equipment as the asphalt concrete recycler PM 107 or EM 3200 simultaneously solve two important tasks:
- Due to the use of asphalt residues, money is saved. After all, you do not have to buy some new components for this solution.
- The amount of garbage in the region does not increase, because everything goes into business.
Modern recycling plants work in a similar way. Recycling is carried out directly in the factories, there is practically no unnecessary stony mass, and due to the secondary use of slag, funds are saved for the production of a new quantity of the mixture.
Let's look at how this process happens.
Recycling Scheme
To make the essence of such a specific work clearer - we publish step by step instructions.
Usually everything is done like this:
- From the mixer or hopper by washing the internal cavity, the slurry from sand, rubble and cement fluid is drained. Merge everything in a special tray.
- In the tray, sand and crushed stone for concrete are deposited, and then fall into a screw separator. With the help of a powerful screw stones and sand are pushed to the outlet and poured out.
- Cement "milk" from the receiving tray through a centrifugal pump is discharged into a separate container. Usually, such a tank is a specially made settling pit. In this case, the drain mode and the purity of the fluid can be adjusted manually or with the help of an electronic panel.
Thus, it turns out that the recycling system as it splits the concrete into its initial components. Components are sorted, then fed into separate containers, and then returned to production. Agree, very convenient and economical.
By the way, if for the manufacture of a new mixture in the composition of the main fluid, the drained cement “milk” is used, then in the end the mass will turn out to be richer, and therefore stronger.
This concludes our review of concrete processing technology. Let's summarize the article.
Conclusion
We have understood such a thing as recycling concrete. We hope that now you better understand that processing such waste may not be just a “headache”, but also a process that will help save. If you want to see in person how this can all be done, then we recommend watching the video in this article.