Preliminary assessment, by means of Radon exhalation rate measurements, of the bio-sustainability of microwave treatment to eliminate biodeteriogens infesting stone walls of monumental historical buildings.

3rd International Conference on Innovative Materials, Structures and Technologies

Mancini, S.^1,4 ; Caliendo, E.^2 ; Guida, M.^3,4 ; Bisceglia, B.^2

Department of Physics 'E.r. Caianiello' (DF), University of Salerno, via Giovanni Paolo II, Fisciano

IT

84084, Italy^1

Department of Industrial Engineering (DIIN), University of Salerno, via Giovanni Paolo II, Fisciano

IT

84084, Italy^2

Department of Information Engineering, Electric Engineering and Applied Mathematics (DIEM), University of Salerno, via Giovanni Paolo II, Fisciano

IT

84084, Italy^3

Environmental Radioactivity Laboratory (AmbRa), University of Salerno, via Giovanni Paolo II, Fisciano

IT

84084, Italy^4

关键词: Cleaning operations;    Environmental radioactivity;    Historical buildings;    Microwave treatment;    Nondestructive methods;    Preliminary assessment;    Radon exhalation rate;    Traditional constructions;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/251/1/012026/pdf
DOI  :  10.1088/1757-899X/251/1/012026

来源: IOP

【 摘 要 】

The main purpose of the work described in this paper has been to establish the protocol for a new non-disruptive technique of intervention, based on microwave treatment, for cleaning operations on monumental historical buildings, to eliminate biodeteriogens infesting stones. Non-destructive methods in the cleaning operations, should not only preserve the physical integrity, the chemical-mineralogical and structural identity of materials, but, when the exhalation of pollutant agents (like for example Radon gas) from building materials is considered, also, make the indoor air quality (IAQ) levels healthy. Therefore, one of the main steps of the protocol proposed in this paper is concerned with the assessment of the Radon exhalation rate in order to verify that microwave treatments do not increase the Radon naturally exhalated by building materials. In this paper, the preliminary results of the Radon measurements performed on two different type of tuff samples (grey tuff and yellow tuff), typical of the Italian traditional construction heritage, with the E-PERM passive technique at the Environmental Radioactivity Laboratory (Amb.Ra.), University of Salerno, Italy, ISO 9001:2008 certified, are summarized.