The influence of activated sludge wastewater treatment plant on the distribution of pores in mortars CEM I

Stanaszek-Tomal, Elżbieta; Fiertak, Maria

doi:10.15199/40.2017.4.7

Cited by 2 publications

(5 citation statements)

References 11 publications

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“…The most common mould fungi in objects infected with biological corrosion include Cladosporium, Aspergillus, Penicillium, Alternaria, Fusarium, Mucor, Trichoderma [16,17]. Therefore, two types were selected for the study, i.e.…”

Section: Corrosive Environmentmentioning

confidence: 99%

“…The medium described above was used for isolation, detection and determination of filamentous fungi. The final pH of the medium was 4.6 at 25˚C [17].…”

Section: Corrosive Environmentmentioning

confidence: 99%

“…This suspension was used to contaminate previously prepared samples made of the tested cement-polymer mortar. The contaminated test elements were placed in a biological climate chamber at 25ºC±1º C and 95% ±1% relative humidity [17].…”

Section: Corrosive Environmentmentioning

confidence: 99%

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Influence of pore structure on humidity parameters of cement-polymer mortars contaminated with filamentous fungi

Stanaszek-Tomal

2020

PLoS ONE

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Mineral building materials are porous materials. The volume of pores connected is the active volume of pores or the effective volume. The volume of all pores is the total volume of the pores. The properties of the individual pores are different. Their dimensions and shape can influence the properties of materials. Materials are modified with different admixtures to improve their properties. However, additives or admixtures can cause corrosion. Although building materials do not provide food for microorganisms, they are very often inhabited by them. As a result of their presence and the action of metabolic products, biodeterioration occurs. One of the products of metabolism is water. In this paper we investigated how the modified structure of biodeterioration caused by mould fungi affects the moisture content of cement-polymer mortar with the admixture of polysiloxane latex. Citation:Stanaszek-Tomal E (2020) Influence of pore structure on humidity parameters of cementpolymer mortars contaminated with filamentous fungi. PLoS ONE 15(4): e0231347. https://doi.org/ 10.

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Section: Corrosive Environmentmentioning

confidence: 99%

“…The medium described above was used for isolation, detection and determination of filamentous fungi. The final pH of the medium was 4.6 at 25˚C [17].…”

Section: Corrosive Environmentmentioning

confidence: 99%

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Influence of pore structure on humidity parameters of cement-polymer mortars contaminated with filamentous fungi

Stanaszek-Tomal

2020

PLoS ONE

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“…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].…”

mentioning

confidence: 75%

“…To analyse the impact of microorganisms on cement materials, two types of filamentous fungi were used, i.e., Cladosporium, which is the most common and most common in the air, and Penicillium, a common fungus [15,16].…”

Section: Corrosive Environmentmentioning

confidence: 99%

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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The influence of activated sludge wastewater treatment plant on the distribution of pores in mortars CEM I

Cited by 2 publications

References 11 publications

Influence of pore structure on humidity parameters of cement-polymer mortars contaminated with filamentous fungi

Influence of pore structure on humidity parameters of cement-polymer mortars contaminated with filamentous fungi

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

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