Beton ist das weltweit am häufigsten eingesetzte Baumaterial. Jedes Jahr werden etwa 30 Milliarden Tonnen verbaut. Das wird sich auch in näherer Zukunft nicht signifikant ändern, denn Hochhäuser, Brücken, Tunnel und Staudämme setzen auf die enorme Masse und Dichte von Beton. Alternative Baustoffe haben keine vergleichbare Druckfestigkeit. Recycling-Beton oder umweltfreundlichere Zementersatzstoffe machen bislang nur einen kleinen Anteil aus.
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