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Home > Publications > International Concrete Abstracts Portal
The International Concrete Abstracts Portal is an ACI led collaboration with leading technical organizations from within the international concrete industry and offers the most comprehensive collection of published concrete abstracts.
Title: Influence of Cement and Plasticizer Type on the Rheology and Reactivity of Cementitious Binders
Author(s): H. Vikan, H. Justnes, and R. Figi
Publication: Special Publication
Appears on pages(s): 455-470
Keywords: adsorption; cement; lignosulfonate; plasticizers; polyacrylate; rheology; sulfonated naphthalene formaldehyde condensate
Abstract:The interactions between six commercial cements and three types of plasticizers, namely naphthalene sulfonate formaldehyde condensate (SNF), lignosulfonate (LS) and polyacrylate grafted with polyether (PA) are investigated using cement paste. PA was found to be the most efficient plasticizer of the three tested even though it was found to present lower adsorption onto cement than SNF and LS. SNF and LS brought about comparable results. PA was observed to induce flow gain of pastes within 2 hours of rheological measurements, while pastes made with SNF and LS exhibited flow loss as a function of time. The adsorption characteristics were found to depend on the plasticizer type. The plasticizer saturation dosages were, moreover, found to depend on cement surface area (Blaine fineness), amount of cubic C3A and soluble sulfates.
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