Assessment of Hydrophobic Coating on Porous Calcareous Rocks Surface Exposed in Urban Ambient Air Pollution

Euroinvent ICIR 2018

Pelin, V.^1,2,3 ; Rusu, O.^2 ; Cazacu, M.M.^2,4 ; Gurlui, S.^2 ; Sandu, A.V.^5,6 ; Radinschi, I.^4 ; Ciocan, V.^7 ; Sandu, I.^6,8

Department of Environmental Science, Faculty of Geography - Geology, Doctoral School of GeoScience, Alexandru Ioan Cuza University, Carol I Blvd, no. 20A, Iasi

700505, Romania^1

Atmosphere Optics, Spectroscopy and Lasers Laboratory - LOASL, Faculty of Physics, Alexandru Ioan Cuza University, Carol I Blvd, no. 11, Iasi

700506, Romania^2

Department of Concrete Structures, Building Materials Technology and Management, Faculty of Civil Engineering and Building Services, Gheorghe Asachi Technical University, prof. Dimitrie Mangeron Blvd, no. 1, Iasi

700050, Romania^3

Department of Physics, Gheorghe Asachi Technical University, prof. Dimitrie Mangeron Blvd, no. 59A, Iasi

700050, Romania^4

Faculty of Materials Science and Engineering, Gheorghe Asachi Technical University of Iasi, prof. Dimitrie Mangeron Blvd, no. 41A, Iasi

700050, Romania^5

Romanian Inventors Forum, Sf. Petru Movila Street, no. 3, Iasi, Romania^6

Department of Building Servicres, Faculty of Civil Engineering and Building Services, Gheorghe Asachi Technical University, prof. Dimitrie Mangeron Blvd, no. 1, Iasi

700050, Romania^7

Arheoinvest Interdisciplinary Platform, Alexandru Ioan Cuza University, Carol I Blvd, No. 11, Iasi

700506, Romania^8

关键词: Ambient air pollution;    Degradation process;    Environmental conditions;    Historical monuments;    Hydrophobic coatings;    Hydrophobic solutions;    Hydrophobic treatment;    Urban environments;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/374/1/012091/pdf
DOI  :  10.1088/1757-899X/374/1/012091

来源: IOP

【 摘 要 】

Urban air quality has changed rapidly in recent years, that requiring new research focused on the effects of pollution, both on the environment and on human health, as well as on apparent changes in building surfaces, including historical ones. As is known, permanent exposure to the atmosphere in the urban environment causes degradation processes on the surfaces of natural stone monuments, especially on porous stone surfaces. In these investigations were used samples of porous calcareous rocks similar to the natural stone from the many historical monuments of the Iasi city - Romania. These samples were coating with various commercially hydrophobic solutions. Further, these samples were exposed in the immediate vicinity of a historical monument and an intense road traffic junction. After about six months of exposure, apparent changes in the treated surfaces were compared with untreated control surfaces but subjected to the same environmental conditions over the same time period in order to evaluate the effectiveness of the hydrophobic treatment.