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From the 3-component system to the 5-component system

Special topic: concrete admixtures and concrete additives


In general magazines or media, one often reads or hears that concrete consists of sand, gravel, cement and water. If sand and gravel are regarded as one unit, we speak of a 3-component system. In the early days of industrial concrete production, the majority of concretes were classified in such a 3-component system. This also worked very well for years up to certain limits. It is only since researchers and concrete technologists have been pushing the limits of what is possible that it has been found that, with the help of concrete chemistry (admixtures) and finely dispersed powdery substances (additives), the performance of concrete could still be significantly increased. The 5-component system was born.

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CPi worldwide journals are trade journals for the concrete and precast concrete industry that are published in 10 different language editions in more than 170 countries. These trade journals, with their practical editorial reporting on research, production and applications, are specifically addressing the decision makers of the concrete and precast concrete industry.

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