Calculate the curing time correctly for concrete
The hardening time of concrete is 28 days. After this time, provided that the treatment is correct, the concrete has reached its full compressive strength.
What you need:
- concrete
- foil
- Possibly. mixer
- water
Mix concrete properly and let it dry out slowly
- If you mix concrete yourself, you have to pay attention to the WZ value. This value describes the relationship between water and cement.
- Example: If you want to process 100 kg of cement with a WZ value of 0.4, calculate: 100 kg x 0.4. You then have to add 40 liters to the cement. Add water.
- A tool value of 0.3 to 0.5 is optimal for a very high compressive strength; at the most, you should work with a tool value of 0.6.
- You have to take the curing time into account when planning concrete work. A base plate z. B. must be poured 28 days before it can be fully pressurized.
Keep concrete moist during the curing time
You can either mix concrete yourself or - especially if you need large quantities - have it delivered from a mixer. The preparatory work and the subsequent treatment during the curing time are the same.
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- Before placing a concrete slab, e.g. B. for one garage, Carport, greenhouse, etc. pouring, you need to line the bottom with a film. The film prevents water from the soil from penetrating the capillaries of concrete and bursting it open in winter.
- A surface made of poured concrete must be covered with a film after it has been stripped and straightened. The film prevents too rapid drying, which could lead to cracks. Water could also penetrate into superficial cracks and make the concrete porous and crumbly.
The normal compressive strength of concrete is reached after 28 days. He can now be fully loaded. A surface design is now also possible.
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