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DIRECTORY LINES REGARDING THE DESIGN AND PRODUCTION OF SELF-CLEANING CEMENTITIOUS COMPOSITES

GREBENISAN, E.; SZILAGYI, H.; HEGYI, A.; MIRCEA, C.; BAERA, C.
Abstract:
This paper presents some general directory lines regarding the development (design and effective production) of the cementitious composites with self-cleaning properties. Self-cleaning concrete represents a material containing nanomaterials, namely TiO2 nanoparticles with photocatalytic properties. Consequently, buildings facades made of a composite containing TiO2-SiO2, exhibit superhydrophilic effect on the surfaces, i.e., in the presence of UV radiation, the water reaching these surfaces have the ability to form films which take over the impurities more easily. Moreover, the research shows that these constructions retain and regenerate their aesthetic appearance even after removing UV radiation. This type of composites has the ability to decompose organic and inorganic substances: inorganic pollutants like nitrogenous or acids, sulphates present in the air or water, deposited on solid surfaces, are neutralized by decomposition into stable compounds like oxides and salts. Consequently, the use of these materials for building construction leads to effective cost reduction concerning the building maintenance, washing and repair, decontamination and sterilization and even potential unpleasant urban odours prevention.
SGEM Research areas:
Year:
2019
Type of Publication:
In Proceedings
Keywords:
self-cleaning; cement materials; TiO2 nanoparticles; pollution; photocatalysis
Volume:
19
SGEM Book title:
19th International Multidisciplinary Scientific GeoConference SGEM 2019
Book number:
6.2
SGEM Series:
International Multidisciplinary Scientific GeoConference-SGEM
Pages:
89-98
Publisher address:
51 Alexander Malinov blvd, Sofia, 1712, Bulgaria
SGEM supporters:
Bulgarian Acad Sci; Acad Sci Czech Republ; Latvian Acad Sci; Polish Acad Sci; Russian Acad Sci; Serbian Acad Sci & Arts; Slovak Acad Sci; Natl Acad Sci Ukraine; Natl Acad Sci Armenia; Sci Council Japan; World Acad Sci; European Acad Sci, Arts & Letters; Ac
Period:
30 June - 6 July, 2019
ISBN:
978-619-7408-89-8
ISSN:
1314-2704
Conference:
19th International Multidisciplinary Scientific GeoConference SGEM 2019, 30 June - 6 July, 2019
DOI:
10.5593/sgem2019/6.2/S26.012
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