Molecular design of comb-shaped polycarboxylate dispersants for environmentally friendly concrete
dc.contributor.author
Marchon, Delphine
dc.contributor.author
Sulser, Ueli
dc.contributor.author
Eberhardt, Arnd
dc.contributor.author
Flatt, Robert J.
dc.date.accessioned
2023-07-13T09:48:57Z
dc.date.available
2017-06-10T22:47:53Z
dc.date.available
2023-07-13T09:48:57Z
dc.date.issued
2013-12
dc.identifier.issn
1744-683X
dc.identifier.issn
1744-6848
dc.identifier.other
10.1039/C3SM51030A
en_US
dc.identifier.uri
http://hdl.handle.net/20.500.11850/73299
dc.identifier.doi
10.3929/ethz-b-000073299
dc.description.abstract
Concrete is the most widely used material in the world and, because of the large volume used, the production of cement, the main component of concrete, is responsible for a high CO2 emission. To reduce the quantity of CO2 emitted, one solution is to substitute a part of cement by supplementary cementitious materials, SCMs, such as fly ash. Because fly ash is largely inert in the first days of blended cement hydration, it is necessary to accelerate its dissolution by physical or chemical means to compensate the loss of mechanical strength in the early stage. The solution studied in this project is the alkaline activation by addition of NaOH that prevents the dispersive effect of PCE superplasticizers used in modern concrete with a low content of water. In this work, we investigated the influence of NaOH on hydration, rheology and mechanical strength of superplasticized blended cementitious systems. From the results and theoretical aspects of polymer adsorption, a simple criterion was established that defines which polymer structures are or are not compatible with alkaline activated systems.
en_US
dc.format
application/pdf
en_US
dc.language.iso
en
en_US
dc.publisher
Royal Society of Chemistry
en_US
dc.rights.uri
http://creativecommons.org/licenses/by/3.0/
dc.title
Molecular design of comb-shaped polycarboxylate dispersants for environmentally friendly concrete
en_US
dc.type
Journal Article
dc.rights.license
Creative Commons Attribution 3.0 Unported
dc.date.published
2013-08-20
ethz.journal.title
Soft Matter
ethz.journal.volume
9
en_US
ethz.journal.issue
45
en_US
ethz.pages.start
10719
en_US
ethz.pages.end
10728
en_US
ethz.version.deposit
publishedVersion
en_US
ethz.identifier.wos
ethz.identifier.scopus
ethz.identifier.nebis
005061136
ethz.publication.place
Cambridge
en_US
ethz.publication.status
published
en_US
ethz.leitzahl
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02115 - Dep. Bau, Umwelt und Geomatik / Dep. of Civil, Env. and Geomatic Eng.::02606 - Institut für Baustoffe (IfB) / Institute for Building Materials::03891 - Flatt, Robert J. / Flatt, Robert J.
en_US
ethz.leitzahl
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02115 - Dep. Bau, Umwelt und Geomatik / Dep. of Civil, Env. and Geomatic Eng.::02606 - Institut für Baustoffe (IfB) / Institute for Building Materials
en_US
ethz.leitzahl.certified
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02115 - Dep. Bau, Umwelt und Geomatik / Dep. of Civil, Env. and Geomatic Eng.::02606 - Institut für Baustoffe (IfB) / Institute for Building Materials::03891 - Flatt, Robert J. / Flatt, Robert J.
ethz.date.deposited
2017-06-10T22:50:26Z
ethz.source
ECIT
ethz.identifier.importid
imp59365118bbdb578704
ethz.ecitpid
pub:116074
ethz.eth
yes
en_US
ethz.availability
Open access
en_US
ethz.rosetta.installDate
2017-07-14T17:23:35Z
ethz.rosetta.lastUpdated
2024-02-03T01:39:43Z
ethz.rosetta.versionExported
true
ethz.COinS
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