Moritz und die Maschinen: Beton verteilen mit dem Betonmischer und Betonpumpe | Der Elefant | WDR

Der Elefant September 10, 2024
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Wie wird Beton mit Hilfe eines Betonmischers und einer Betonpumpe verteilt ?👍 Hinterlasst einen Like, wenn euch das Video gefallen hat! -------------------------------------------------------------- Um Baumaschinen dreht sich sich heute alles bei Moritz. An einer Baustelle sieht Moritz viele große Maschinen, darunter auch ein Betonmischer. Bauleiter Jannis nimmt Moritz mit auf die Baustelle, auf der ein Hochhaus gebaut wird. Er erklärt ihm, wie die Baustelle funktioniert. Es gibt eine große Baugrube, in der viele Bauarbeiter arbeiten, mit Kränen werden Dinge wie Eisenstangen oder ein Dixi-Klo hin- und her transportiert. Der Betonmischer bringt flüssigen Beton, der über eine Rutsche in eine Betonpumpe abgelassen wird. Der Betonmischer fasst acht Kubikmeter Beton. Das ist ungefähr so viel wie in einen Gartenpool hineinpasst. Der Beton wird von der Betonpumpe aus über ein langes Rohr mit einem beweglichen Schlauch in die Decke eingebracht. Die Bauarbeiter verteilen den Beton mit dem Schlauch gleichmäßig auf die Fläche. Dabei stehen sie auf Gittermatten, in die der Beton hineinfließt. Ein Bauarbeiter, Wolodymir, steuert die Betonpumpe mit einer Fernbedienung. Mit Hilfe der Rüttelflasche wird die Luft aus dem Beton heraus gerüttelt. Anschließend wird der Beton gleichmäßig und eben auf der Fläche verteilt. Ist der Betonmischer leer, gibt es ein Signal und alle wissen, dass bald kein Beton mehr aus der Pumpe herauskommt. Der leere Betonmischer fährt von der Baustelle und Wolodymir reinigt die Betonpumpe und steckt von unten einen schwammartigen Ball in das Pumpenrohr. Moritz darf mithelfen die Betonpumpe abzubauen. Dazu schnallt er sich die Fernbedienung um den Bauch und Wolodymir zeigt ihm, wie er den langen Mast langsam einklappen kann. Der Mast besteht aus mehreren Teilen. Wie ein langer Arm mit verschiedenen Gelenken. Bauarbeiter Michael prüft den frisch verteilten Beton. Dazu holt er sich einen Eimer mit Beton und gemeinsam gehen sie in das Betonlabor, wo sie verschiedene Tests durchzuführen. Moritz schippt Beton in eine Art Trichter, um zu testen, wie fest der Beton ist. Der Trichter wird abgehoben und der Beton verteilt sich über die Fläche, die insgesamt 15 Mal angehoben und wieder fallen gelassen wird. Moritz misst, wie breit der Betonfladen ist. Danach wird der Beton in eine würfelartige Form geschippt. Mit Hilfe einer Rüttelplatte wird der Beton verdichtet und anschließen auf der Waage gewogen und die Temperatur gemessen. Die Probewürfel werden eingefroren. Moritz geht zurück zur Baustelle, auf der der Beton mit einem Flügelglätter geglättet wird. 📺 Mehr vom Elefanten in der ARD-Mediathek: https://www.ardmediathek.de/elefant 🐘 Zur Seite mit dem Elefanten für Kinder: https://www.wdrmaus.de/elefantenseite/ 🐘 Zur Seite mit dem Elefanten für Eltern: https://www.wdrmaus.de/elefantenseite/elternseiten/ 📱 Zur App mit dem Elefanten: im Google Playstore: https://play.google.com/store/apps/details?id=de.WDR.DerElefant&gl=US im App Store: https://apps.apple.com/de/app/derelefant/id1023688500 ----- Die Sendung mit dem Elefanten ist ein Format, das sich an Kinder zwischen 3 und 6 Jahren sowie ihren Eltern richtet. Das bedeutet: Bestimmte Funktionen wie Kommentare sind für diese Videos nicht verfügbar.

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