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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: Mode of Action of Superplasticizers
Author(s): T. A. Burge
Publication: Special Publication
Appears on pages(s): 101-126
Keywords: admixture; adsorption; concrete; polymer; rheology; superplasticizer
Abstract:Depending on the nature of the materials used, the characteristics of both fresh and hardened concrete can be systematically altered with concrete admixtures. Special investigations were carried out on different polymers used as superplasticizers to determine the mode of action. The emphasis of the investigations was on the adsorption behaviour of the polymers on different cements phases and their influence on the rheological properties of mortar. The adsorption behaviour was investigated by High Performance Liquid Chromatography and the rheological properties were determined in standard mortar mixtures by the flow table spread measurement and by using the Viskomat NT to determine the flow characteristics. Additionally pore solutions were analized Based on these results some interesting correlations co used to explain the mode of action of superplasticizers.
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