Title of article :
Monitoring the performance of innovative and traditional biocides mixed with consolidants and water-repellents for the prevention of biological growth on stone Original Research Article
Author/Authors :
Daniela Pinna، نويسنده , , Barbara Salvadori، نويسنده , , Monica Galeotti، نويسنده ,
Issue Information :
دوهفته نامه با شماره پیاپی سال 2012
Pages :
10
From page :
132
To page :
141
Abstract :
In this study, some mixtures of consolidants or water-repellent products and biocides developed to prevent biological growth, were tested over time on three stone substrates with different bioreceptivity. The performance of both traditional (tetraethylorthosilicate, methylethoxy polysiloxane, Paraloid B72, tributyltin oxide, dibutyltin dilaurate) and innovative compounds (copper nanoparticles) was assessed using colour measurements, the water absorption by contact sponge method, and observation under stereo and optical microscopes. The application of the mixtures had also the purpose of controlling re-colonization on stone after a conservation treatment. The study site was the archaeological Area of Fiesole; the mixtures were applied in situ to sandstone, marble and plaster which had been cleaned beforehand. An innovative aspect of the study is that, by using non-invasive methods, it also permitted monitoring the mixturesʹ effectiveness in preventing biological growth. The monitoring results made it possible to assess the bioreceptivity of the treated stones (sandstone, marble, plaster) over a period of almost three years.
Keywords :
Bioreceptivity , Copper nanoparticles , Organic treatments , Biological growth , Prevention , Re-colonization
Journal title :
Science of the Total Environment
Serial Year :
2012
Journal title :
Science of the Total Environment
Record number :
988281
Link To Document :
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