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SUMMARY:Active Rheology and Stiffening Control of cementitious materials -
  Professor Geert De Schutter\, Ghent University
DTSTART:20221130T160000Z
DTEND:20221130T170000Z
UID:TALK185354@talks.cam.ac.uk
CONTACT:Jamie Clarkson
DESCRIPTION:Rheological properties of fresh cementitious materials to a la
 rge extent depend on mix design and processing conditions\, currently leav
 ing only limited options to actively modify workability or flowability dur
 ing casting. Cutting-edge research at Ghent University has led to a scient
 ific break-through\, enabling active intervention during processing\, base
 d on the application of external signals to trigger an intended response i
 n the material. This presentation will explain the first concepts of Activ
 e Rheology Control (ARC) and Active Stiffening control (ASC) of cementitio
 us materials. Two different routes have been studied\, based on responsive
  mineral particles\, and based on newly developed switchable superplastici
 zers. First proofs of concept at fundamental paste level will be explained
 . Remaining challenges will be identified. Finding solutions to these chal
 lenges will lead to marvelous opportunities for concrete pumping and formw
 ork casting in general\, and for 3D printing of concrete structures more p
 articularly.\n\n\nThe meeting can be viewed in CivEng or joined online:\n 
 \nhttps://eng-cam.zoom.us/j/82357897828?pwd=SnhDdFJjQS9xNlFFQWtTTW5LNzlGdz
 09\n
LOCATION:CivEng Seminar Room (1-33) (Civil Engineering Building)
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