Testing pumpability of concrete using Sliding Pipe Rheometer, Construction
and Building Materials, 53 (2014) 312–323
• Egor Secrieru, Marko Butler, Viktor Mechtcherine: Prüfen der Pumpbarkeit von Beton –Vom Labor in die Praxis, Bautechnik 91 (2014), Heft 11, 797-811J. Kronenberg: „Die Betonpumpe ist schuld!" Wissensportal baumaschine.de 1(2011),Autor Anja Kittelmann, Communication Marketing, Putzmeister Holding GmbH
Sliper – Determiningthe pumping capacity of
different concretemixes under laboratory
Each individual ingredient of a concrete formula has an effect on the pumpability
of the concrete. For example, admixtures
and additions for reducing the water content and the proportion of cement may have a negative impact on the pumpability
of the concrete. The new SLIPER measuring device (SLIding Pipe
RhEometeR), developed by Putzmeister and produced by Schleibinger, allowsthe user to quickly assess the pumping characteristics of concrete and other materialsin the laboratory and on the construction
site before they are used.
"Using the rheometer the time and effort spent on
pumping tests can be reduced and thus costs saved.
At the same time, this new technology facilitates aquality check, as well as a simple prognosis optionwith regard to the pumping behavior of concrete andother thick matter," states concrete technologist Dr.
Knut Kasten from Putzmeister. Consistent measurements
at the pump and using the rheometer haveshown what properties the concrete has when pumping:As can be frequently observed with modern highstrengthconcrete mixes, this special concrete also
generated relatively high pressure drag in the conveyorpipe. The properties determined through experimentshelp in the targeted and clever design of laterpump systems.