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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 Different Pozzolan Types upon the Effect of Plastifying Admixture
Author(s): P.A. Dahl and I. Meland
Publication: Special publication
Appears on pages(s): 689-712
Keywords: adsorption: air entrainment: cement pastes:
compressive strength: concretes; fly ash; heat of hydration;
liqnosulphonate; plasticizers; setting (hardening): silica fume:
water: zeta potential
Abstract:This paper presents the results of an investigation in which the effect of lignosulphonate addition on the properties of cement paste and concrete , incorporating pozzolans has been studied. Measurements of adsorption and zetapotential were made on the systems of pozzolans/Ca(OH)2-solutions/ lignosulphonate, and upon the heat evolution from cement pastes containing pozzolans and ligno-sulphonate. The results indicated that the effect of lignosulphonate was dependent upon the type and quality of the pozzolan used. When testing in concrete, the above measurements showed to have pointed the direction but not the magnitude, in which concrete properties such as water demand, air content, setting time and strength developement were affected. They also gave the basis for the explanation of most of the phenomena observed in concrete.
Special publication, International Partner Access.
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