Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/96288
Type: Artigo de periódico
Title: Water Reducing Agents Of Low Molecular Weight: Suppression Of Air Entrapment And Slump Loss By Addition Of An Organic Solvent
Author: Rodrigues F.A.
Joekes I.
Abstract: The water reducing properties of solutions containing small amounts of sodium n-dodecylbenzene-sulfonate and acetone are studied. Water reductions up to 28% are obtained in mortars composed by 30% cement and 70% graded sand. Sorptivity coefficients vary between 78 and 380 g m-2 s-1 2 (no admixture: 744 g m-2 s-1 2). Slump loss rates of mortars with admixture are similar to those of the admixturefree ones. Compressive strength after 28 days is roughly 50% higher for the mortars with admixture. Surface tension measurements are used to explain the unexpected efficiency of these solutions. © 1994.
Editor: 
Rights: fechado
Identifier DOI: 10.1016/0008-8846(94)90019-1
Address: http://www.scopus.com/inward/record.url?eid=2-s2.0-0028045857&partnerID=40&md5=edd4caec65f3144e63a62ad9eecdf2f3
Date Issue: 1994
Appears in Collections:Unicamp - Artigos e Outros Documentos

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