Effectiveness of nanoparticles-based ultrahydrophobic coating for concrete materials
Cited 0 times in
Cited 0 times in
- Title
- Effectiveness of nanoparticles-based ultrahydrophobic coating for concrete materials
- Author
- Ray, Saikat Sinha; Peddinti, Pranav R.T.; Soni, Ritesh; Kim, Byungmin; Park, You-In; Kim, In-Chul; Lee, Chang Young; Kwon, Young-Nam
- Issue Date
- 2023-05
- Publisher
- Elsevier BV
- Citation
- JOURNAL OF BUILDING ENGINEERING, v.66, pp.105799
- Abstract
- Moisture interaction and extreme weather may complicate the service life and increase the maintenance cost of various building materials. This paper investigates the performance of protective surface coatings applied to the most common building material, concrete. A novel synthesis route for producing ultrahydrophobic surface coatings is demonstrated to enhance the impermeability of concrete. The concrete specimens were chemically modified with silica sol, which was synthesized by hydrolysis of tetraethoxysilane (TEOS) under alkaline conditions, followed by treatment with hexadecyltrimethoxysilane (HDTMS) solution. The concrete specimens coated with proposed micro-composite coating were tested for hydrophobicity and self-cleaning characteristics in terms of contact angle and sliding angle at various water exposure conditions and periods of exposure. The permanency and efficiency of proposed coatings was further tested after exposure to alternate wet-dry cycles and highly saline environment. The modified specimens exhibited a contact angle of 121° – 135° and a sliding angle of 9° – 22° at various exposure conditions, depicting superior hydrophobicity. The overall findings of this study could aid in maintaining the intended longevity and performance of various concrete materials.
- URI
- https://scholarworks.unist.ac.kr/handle/201301/61579
- DOI
- 10.1016/j.jobe.2022.105799
- Appears in Collections:
- UEE_Journal Papers
ECHE_Journal Papers
- Files in This Item:
- There are no files associated with this item.
can give you direct access to the published full text of this article. (UNISTARs only)
Show full item record
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.