Fungal biodeterioration in buildings (in Polish) Biodeterioracja pleśniowa obiektów budowlanych

Rymsza, Barbara

doi:10.1016/s1644-9665(12)60248-9

Cited by 2 publications

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“…The structures of the unmodified mortars contaminated with fungi of both types sealed slightly, but the pore distribution also changed. Compared to the data in publication [24], there was a slight sealing of the structure as a result of the biological environment, but this was due to corrosion products. In contrast, CEM I mortars with a 5% polysiloxane latex admixture continued to unseal when compared to the data in publication [16].…”

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confidence: 67%

Biodeterioration of Cement and Cement–Polymer Mortars: Analysis of the Influence of the Structure and Distribution of Pores on the Humidity of Mortars Exposed to the Biological Environment

Stanaszek-Tomal

2024

Materials

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The biodegradation of building materials refers to the problem of loss of performance due to biological agents, mainly dry rot fungi, moulds (filamentous fungi), bacteria and insects. Biocorrosion not only leads to the damage and deterioration of building materials, but can also pose a direct threat to human health. Inorganic building materials are a difficult substrate for microorganisms because they need food sources for their metabolism. However, they become colonised by microorganisms. In this paper, the effect of mould fungi on the moisture content and structure of CEM I and CEM I cement–polymer mortars with a 5% polysiloxane latex admixture was analysed. The analysis was carried out after 15 months of exposure to the biological environment. It was found that the cementitious materials were susceptible to the corrosive environment in the form of the filamentous fungi Penicillium chrysogenum and Cladosporium herbarum. It was also found that, after 15 months of exposure to mould fungi, CEM I cementitious materials without admixtures were slightly less susceptible to mould fungi than CEM I with the addition of a 5% polysiloxane admixture.

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confidence: 67%

Biodeterioration of Cement and Cement–Polymer Mortars: Analysis of the Influence of the Structure and Distribution of Pores on the Humidity of Mortars Exposed to the Biological Environment

Stanaszek-Tomal

2024

Materials

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“…The mycelium dries faster under stationary conditions when forced circulation does not promote the spread of spores carried by a stream of air. They are released from the surfaces overgrown by mycelium after which they contaminate the air in the room and secondarily infect the surface [24].…”

Section: Factors Influencing the Development Of Microorganismsmentioning

confidence: 99%

Environmental Factors Causing the Development of Microorganisms on the Surfaces of National Cultural Monuments Made of Mineral Building Materials—Review

Stanaszek-Tomal

2020

Coatings

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The ability of microorganisms to degrade building materials depends on several factors. Biological corrosion occurs in close dependence with chemical and physical factors affecting microorganisms. The growth and development of microorganisms is stimulated by external stimuli, i.e., environmental factors. Microorganisms have a relatively large tolerance range for changes in environmental conditions. Under the right conditions, microorganisms thrive very well. The adverse effects may cause the inhibition of cell growth, damage, or lead to the death of the microorganism. Considering the impact of environmental factors on microorganisms, it is not possible to identify the most important of them. The result effect of overlapping factors determines the possibility of the growth of certain microorganisms. The main factors affecting the growth are temperature, humidity, hydrogen ion concentration in the environment, oxidoreductive potential, water activity in the environment, and hydrostatic pressure. This article provides a comprehensive overview of the factors causing biodeterioration. The influence of external/internal environment on the surface of cultural monuments made of mineral building materials, i.e., stone, concrete, mortar, etc., is presented.

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Fungal biodeterioration in buildings (in Polish) Biodeterioracja pleśniowa obiektów budowlanych

Cited by 2 publications

References 0 publications

Biodeterioration of Cement and Cement–Polymer Mortars: Analysis of the Influence of the Structure and Distribution of Pores on the Humidity of Mortars Exposed to the Biological Environment

Biodeterioration of Cement and Cement–Polymer Mortars: Analysis of the Influence of the Structure and Distribution of Pores on the Humidity of Mortars Exposed to the Biological Environment

Environmental Factors Causing the Development of Microorganisms on the Surfaces of National Cultural Monuments Made of Mineral Building Materials—Review

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