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|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|
|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.|
|Editor:||Pergamon-elsevier Science Ltd|
|Citation:||Cement And Concrete Research. Pergamon-elsevier Science Ltd, v. 24, n. 5, n. 987, n. 992, 1994.|
|Appears in Collections:||Unicamp - Artigos e Outros Documentos|
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