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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: Slump Control With Reactive Polymeric Dispersant
Author(s): T. Izumi, T. Mizunuma, M. Iizuka, and M. Fukuda
Publication: Special Publication
Appears on pages(s): 243-262
Keywords: amides; carboxylic acid esters; concretes; dispersants; hydrolysis; particle size; plasticizers; plastics, polymers and resins; reactivity; workability; Materials Research
Abstract:A new technology of slump control with a reactive polymeric dispersant was studied. The mechanism of slump loss prevention as well as the physical properties of concrete containing the dispersant were discussed. To solve the slump loss problem, the authors developed ultra-fine particles of reactive polymer. It is a dispersant precursor originally insoluble in water but is gradually converted into a dispersant by hydrolysis with strong alkaline materials in concrete. It was found that the workability of concrete was controlled favorably with the reactive polymeric dispersant.
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