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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: Adsorption of Lignosulphonates on Cement and the Hydration Products of Cements
Author(s): B.O. Myrvold
Publication: Special Publication
Appears on pages(s): 285-296
Keywords: adsorption; cement; clinker; hydration products; lignosulphonates
Abstract:The adsorption of sodium lignosulphonate onto cement was investigated. The cement has either been pre-hydrated or hydrated with the lignosulphonate present. The pre-hydrated cement particles grow with time, thus a larger surface is created and the plateaus in the adsorption isotherms increase. With lignosulphonate present there is hardly any growth of new surface. It is found that, a lignosulphonate that adsorbs strongly to the surface causes, less retardation than weakly adsorbed lignosulphonates. This can be explained by different interactions with the different minerals present.
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