Avaliação do revestimento e da névoa ácida na biodeterioração de corpos de prova de argamassa.

Abstract

Humankind has been building temples, sculpting statues and monuments, of various architectural styles, in order to pass its beliefs and culture to future generations. Over the last few years, science has been reaffirming the need for preservation and prevention of historical monuments. The aim of this work was to investigate the performance of a microbial consortium isolated from the wall of the National Museum of Rio de Janeiro, on the biodeterioration process of test specimens, with the evaluation of the coating and the acid mist. For this, the work characterizes the specimens by X-Ray Fluorescence (FRX), collects images, for example by stereomicroscopy, as well as leads to the enumeration of microorganisms. The use of paint decreased the diversity and quantity of microorganisms. The presence of pollutants assists in the development of microorganisms as well as in the deterioration of the specimens, with the best growth being the total heterotrophic bacteria, with a value of approximately 107 CFU/cm2.