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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: Application of Deflocculation Test to Characterise the Admixture Plasticizer and Superplasticizer Effect in Different Cements
Author(s): A. Macias and S. Goni
Publication: Special Publication
Appears on pages(s): 807-834
Keywords: Admixtures; cements; plasticizers; superplasticizers; tests
Abstract:A deflocculation test based on the method proposed by A. Verhasselt and J. Pairon has been applied to different mixes of cement-admixtures in order tc distinguish quickly between plasticizer and superplasticizer. The admixtures used were commercial products containing different proportions of lignosulphonates (L), sulphonated naphthalene formaldehydecondensate (SNF) and sulphonated melamine formaldehyde condensate (SMF). Three different cements were employed: a low tricalcium aluminate (C3 A = 2.5 %), a high alkali content (Na2 O equivalent = 0.95%) and a high fineness Portland cement (S.A. Blaine = 5002 cm2/gr). In addition, the minimum active dosage of superplasticizer was calculated. The influence of the type of cement in the minimum active dosage is clearly shown by the results obtained through this method.
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