The influence of metabolic sulphuric acid solution on cement mortars (CEM II) modified with nano-TiO2
Authors:
- Elzbieta Stanaszek-Tomal
Abstract
Cement with the addition of TiO2 nanoparticles is a modern material. It allows ecological use of concrete by making concrete surfaces that demonstrate the ability to reduce airborne contaminants and self-cleaning. This is the result of introducing into its composition nanoparticles titanium dioxide TiO2, which has photocatalytic properties. Corrosion of concrete in wastewater treatment plants and sewage networks is a serious problem and poses a great threat. The phenomenon of corrosion caused by sulphur bacteria Thiobacillus is associated with the formation of biogenic sulphuric acid (VI). Therefore, the tested materials have been subjected to the environment stimulating sulphur bacteria. Used 1.5 mmol/L sulphuric acid solution. Despite the very good properties of mortars / concretes with nano-addition of titanium dioxide and the possibility of their use in various objects, it seems impossible to use sewage treatment plants in tanks. This is related to the deactivation of titanium dioxide after some time.
- Record ID
- CUT545274769f364822a850026887cb46fc
- Publication categories
- ; ;
- Author
- Journal series
- IOP Conference Series: Materials Science and Engineering, ISSN 1757-8981, e-ISSN 1757-899X, Irregular
- Issue year
- 2019
- Vol
- 471
- Pages
- [1-6]
- Article number
- 042007
- Other elements of collation
- fot.; wykr.; Bibliografia (na s.) - 5-6; Bibliografia (liczba pozycji) - 19; Oznaczenie streszczenia - Abstr.; Numeracja w czasopiśmie - Vol. 471
- Substantive notes
- Session 3
- Conference
- 3rd World Multidisciplinary Civil Engineering, Architecture, Urban Planning Symposium (WMCAUS 2018), 2018, 18-06-2018 - 22-06-2018, Prague, Czechy
- Keywords in English
- nano-TiO2, CEM II, biogenic sulphuric acid (VI), moisture content, absorbability, flexural strength
- DOI
- DOI:10.1088/1757-899X/471/4/042007 Opening in a new tab
- URL
- https://iopscience.iop.org/article/10.1088/1757-899X/471/4/042007 Opening in a new tab
- Language
- eng (en) English
- License
- Score (nominal)
- 5
- Additional fields
- Indeksowana w: Web of Science, Scopus
- Uniform Resource Identifier
- https://cris.pk.edu.pl/info/article/CUT545274769f364822a850026887cb46fc/
- URN
urn:pkr-prod:CUT545274769f364822a850026887cb46fc
* presented citation count is obtained through Internet information analysis, and it is close to the number calculated by the Publish or PerishOpening in a new tab system.