Beton von morgen
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In the 21st century, cement and concrete will have to develop with respect to the environment within a sustainable development approach: concrete will either be used as a commodity product or as a smart concrete in a niche market. There are several ways of doing this but in any case it will be necessary to be sure to obtain the highest technico-socioeconomic output from each cement grain in order to build concrete structures with a longer life cycle. If we succeed in this, there is no reason why portland cement and concrete will not remain the construction material of the 21st century.