Modern manufacturers working in the construction market are trying in every possible way to reduce the cost of production of their materials. They produce budget materials that are practically the same quality as expensive goods. Not so long ago, American engineers managed to come to the conclusion that cement is not necessary to make durable and reliable concrete!
It turned out that ash could be used instead of cement. It has good hydraulic activity. A mixture made with ash has heat-resistant characteristics and can last for many years. Another indisputable plus: ash is a less expensive material. It serves as a filler for concrete and helps to improve its structure. Plus, the ash is environmentally friendly.
With the help of such a solution, ash brick is produced. The ash contains a large amount of calcium oxide, which is characterized by excellent cementitious properties. As a result, the mixture acquires increased strength characteristics. If you make brickwork using such a solution, then it will be almost impossible to disassemble it later.
Once again, old technologies have brought great benefits to humanity. With their help, people will be able to spend less money on repairs, and the efficiency of the work carried out will increase several times.
How to make cement from ordinary ash?
The properties of cement, which contains ash, are superior to Portland cement. It is noteworthy that such a mixture can be made with your own hands.
The solution with ash dries quickly, hardens and adheres tightly to the required surface.
So, for its preparation you need the following ingredients:
- 1. Ash - 6 liters (it is best to use wood, coal is a worse option, but still suitable).
- 2. Liquid slaked lime - about 4 liters.
- 3. Common salt (small or large) - 1 kilogram.
Sift the ashes initially as they may contain large grains of debris. Don't forget to sift the lime. Then mix the ash and salt.
Remember to work with gloves. Gradually pour lime into a bowl of ash and salt. Mix it gently into the solution. In consistency, it should look like a cement mortar.
That's it, the ash solution is ready! You can use it to lay tiles or plaster. Moreover, it is suitable for sealing cracks in stoves and fireplaces. In order for the work carried out to be as effective as possible, the oven must be thoroughly warmed up before covering it up.
You can also hide gaps with an ash solution. In order for it to give less shrinkage over time, you need to add a little fine sand to it.
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