Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/76301
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, FA
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-1 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.
Country: Inglaterra
Editor: Pergamon-elsevier Science Ltd
Rights: fechado
Identifier DOI: 10.1016/0008-8846(94)90019-1
Date Issue: 1994
Appears in Collections:Unicamp - Artigos e Outros Documentos

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