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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: Tailor-Made Superplasticizers for Modern Concrete
Author(s): M. Corradi, R. Khurana, and R. Magarotto
Publication: Special Publication
Appears on pages(s): 231-248
Keywords: adsorption; cement; cement kiln dust; chain length; density; PCE superplasticisers; performance; secondary fuels; superplasticizers; supplementary cementitious materials
Abstract:The concrete industry is heading towards more sustainable development and aims to make concrete an even more cost-effective building material. In this effort, the cement industry uses increasing amounts of secondary fuels to improve efficiency. Cement kiln dust from the clinker cooling and grinding processes are returned to the cement. Also, the use of supplementary cementitious materials, marginal and recycled aggregate in concrete production is increasing. These practices introduce materials, not foreseen, in the past, in the concrete composition. They are not always inert and often negatively affect the performance of the superplasticiser. In this paper the parameters that cause incompatibility between the cement, other components of the concrete mixture and the superplasticiser are examined. Tailor made superplasticisers are required to overcome these incompatibilities. Some case studies are presented, where the tailor made approach made a positive difference.
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