Mechanical, rheological and morphological analysis of cement-based composites with a new LAS-based air entraining agent.
No Thumbnail Available
Date
2017
Journal Title
Journal ISSN
Volume Title
Publisher
Abstract
The air-entraining admixtures (AEA) consist of surfactant compounds, as do washing-up liquids.
Washing-up liquids are products widely available, non-toxic and biodegradable. This work proposes
the use of an anionic surfactant from washing-up liquids, Linear Alkyl Benzene Sodium Sulfonate
(LAS), as AEA. Mechanical, physical and rheological properties of mortars comprising LAS were compared
to ones with commercial admixture and one without any. The morphological aspects of the air-entrained
matrix were also evaluated, and associated to its properties. Results indicate that the LAS-based AEA is an
effective air-entraining agent. Thus, the present work seeks to disclose this new biodegradable highperformance
potential AEA, as well as to improve the comprehension of the effects of AEAs in cementbased
composites.
Description
Keywords
Air entraining admixtures, Washing-up liquid, Dishwashing liquid, Biodegradable admixtures
Citation
MENDES, J. C. et al. Mechanical, rheological and morphological analysis of cement-based composites with a new LAS-based air entraining agent. Construction and Building Materials, v. 145, p. 648-661, 2017. Disponível em: <http://www.sciencedirect.com/science/article/pii/S0950061817306736>. Acesso em: 29 set. 2017.