3-substance system for concrete

Working with concrete

• The raw material for concrete is always cement. Aggregates are added to this.
• As usual, water is added to the 3-component concrete system. A computer system is used to mix large quantities of concrete.
• Mix until a uniform mixture has formed. However, this must also have a certain amount of moisture.
• When does the concrete have to be processed? With ready-mixed concrete, work immediately before the concrete hardens. That is within 30 minutes in warm dry weather and within an hour in damp weather.
• When concreting in winter, make sure that the fresh concrete does not freeze. Otherwise permanent damage can occur here. To prevent this, you can add warm water to the mixture.


Concrete and mortar - difference and correct use

The main difference between concrete and mortar is that mortar ...

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• The concrete is pumped into the prefabricated formwork. It is important that you work cleanly, especially in the corners.
• The concrete is then shaken, causing air pockets to rise. The subsequent shaking may cause The resulting cavities are driven out and the concrete solidifies so that no cracks appear later.
• High, slim cast concrete parts should be re-compacted. This is done by reinserting the vibrator.

From 3-substance to 5-substance system for concrete

• The 3-substance system for concrete dates back to the 1970s. This has meanwhile been expanded to form the 5-component concrete system.
• In addition to the aggregate, concrete additives and concrete admixtures have also been added.
• Above all, the addition of a concrete liquefier and superplasticizer was important because the concrete can be processed for a longer period of time.