Simple and effective hydrophobic impregnation of concrete with functionalized polybutadienes. (10th January 2022)

• Record Type: Journal Article
• Authors: Szymańska, Anna; Dutkiewicz, Michał; Maciejewski, Hieronim; Palacz, Magdalena
• Is Part Of: Construction & building materials. Volume 315(2022)
• Publication Date: 2022-01-10
• Subjects: Alkoxysilane -- Polybutadiene -- Hydrothiolation -- Impregnation -- Hydrophobic surface -- Water-resistant -- Concrete; Building materials -- Periodicals; 624.18
• DOI: 10.1016/j.conbuildmat.2021.125624
• Languages: English
• ISSNs: 0950-0618

Abstract

Highlights: The alkoxysilyl derivatives of polybutadienes were obtained by hydrothiolation. All synthetized polymers have been successfully used for concrete impregnation. Surface impregnation of concrete resulted in endowing it with waterproof properties. Abstract: In order to extend the life of concrete, various impregnation methods are used to protect it from the damaging effects of external factors. This article proposes an easy and effective method of waterproofing concrete using functionalized polybutadienes. The effects of chemical structure of polymers as well as the type of solvent used, on the hydrophobicity of modified concrete were evaluated. The effectiveness of impregnation was assessed based on the water contact angle measurements and water sorption experiments. For the best hydrophobizing preparation, the water absorption was reduced by 94% compared to the absorption for the unmodified sample.