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

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....

Full description

Saved in:
Bibliographic Details
Published inInternational Multidisciplinary Scientific GeoConference : SGEM Vol. 19; no. 6.2; pp. 89 - 97
Main Authors Grebenişan, Elvira, Szilagyi, Henriette, Hegyi, Andreea, Mircea, Călin, Baeră, Cornelia
Format Conference Proceeding
LanguageEnglish
Published Sofia Surveying Geology & Mining Ecology Management (SGEM) 01.01.2019
Subjects
Air pollution
Building construction
Buildings
Cement
Cleaning
Composite materials
Concrete
Construction
Construction materials
Decomposition
Decontamination
Impurities
Lines
Maintenance
Nanomaterials
Nanoparticles
Nanotechnology
Odors
Oxides
Pollutants
Properties
Radiation
Salts
Silica
Silicon dioxide
Solid surfaces
Sterilization
Sulphates
Titanium dioxide
Ultraviolet radiation
Italy
Online AccessGet full text

Cover

More Information
Summary: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.
ISSN:1314-2704
DOI:10.5593/sgem2019/6.2