The greetings and the time that I explain the process for the elaboration of concrete blocks with formulas or molds, since the costs of elaborated materials are very high:

We must first consider the material measures to be used, for the elaboration of 40 blocks of concrete:
- 0.18 cubic meters of sand or 7 sand pallets washed.
- 1 bag of cement of 42, 5 kilograms
- Water.
Note: We can use 120 cc for each bag of waterproofing cement, so that the blocks are waterproofed, for leaks and more protect this one.

preparation:

We put the sand and spread on the floor, then add the cement and mix it is very well bonded, after the water aggregates that is left with 20% of the humidity, ie it is almost dry so that it can be compacted, Is good The carry that the mixture should not remain, like those that are made for empty columns or floors, must be wet, so it was very wet would not keep the block stable.
After making the mixture, proceed to make the blocks, place the mixture in the mold and fill in layers and we will compact until reaching the top level of the mold, then take the mold to a level area for drying and continue with A new block
Perhaps the first blocks broke the mold in the mold, but that is because it has a lot of moisture in the mixture, we would have to test the level of humidity necessary to be stable, this is achieved with the experience of processing.

I, already make many blocks and beginning this problem, but already controlling the moisture of the mixture, it is easy to elaborate and little more than the purchase of the already elaborated.

The photos of the girls of the mold they use, since there are many varieties, like a video in which they can guide in the elaboration, but with another type of mold different than the use, but the mixture is always the same.

FUENTE DE VIDEO: https://www.youtube.com/watch?v=CnWgLxc3EN4

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