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Title: Photocatalytic Properties of Cement-Based Plasters and Paints Containing Mineral Pigments
Accession Number: 01157585
Record Type: Component
Record URL: Availability: Transportation Research Board Business Office 500 Fifth Street, NW Find a library where document is available Abstract: Innovative cement-based premix products for surface coating of buildings that possess photocatalytic activity arouse great interest because of the results they can achieve in reducting air pollution and maintaining aesthetics. This photoactivity is induced by a photocatalyst, titanium dioxide, that can accelerate the oxidation processes of air pollutants, particularly nitrogen oxides and volatile organic compounds, which are mainly produced by incomplete combustion of fuel and are present in urban environments through the exhaust gases of motor vehicles. Surfaces that are coated with these products acquire a self-cleaning characteristic (maintenance of original color) because the decomposition of organic compounds significantly reduces the ability of atmospheric particles to adhere to treated surfaces, thus facilitating their removal and ensuring a more durable color. These products are particularly suited for use in highly congested areas (i.e., historical centers of cities, tunnels, roads), where air pollution reaches significant levels. This study describes the photocatalytic performances of a series of premix products containing mineral pigments. The tested products are based on hydraulic binders (natural hydraulic lime and cement), and the pigments are inorganic. A wide range of colors was chosen, and the performances of base products were investigated to provide a wider choice to the designers. After a brief introduction of the principles of photocatalysis, the results of a wide experimental work are described. Some consideration of methods of curing and natural exposure is also reported.
Monograph Title: Monograph Accession #: 01157583
Report/Paper Numbers: NANO10-0049
Language: English
Authors: Enea, DanieleGuerrini, Gian LucaPagination: pp 52-60
Publication Date: 2010
ISBN: 9780309142762
Media Type: Print
Features: Figures
(7)
; Photos
(4)
; References
(7)
; Tables
(2)
TRT Terms: Uncontrolled Terms: Subject Areas: Environment; Materials; I15: Environment; I32: Concrete
Files: TRIS, TRB, ATRI
Created Date: May 25 2010 2:23PM
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