General Aspects and Selected Cases

Warscheid, Thomas; Krumbein, Wolfgang E.

doi:10.1007/978-3-642-80017-7_20

Cited by 16 publications

(5 citation statements)

References 17 publications

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“…EPS causes mechanical stress in pores of the mineral structure as a result of shrinking and swelling cycles of these colloidal systems [97]. This may lead to changes in pore size and distribution, together with changes in moisture circulation and temperature response patterns [98]. Microorganisms can also change the water permeability of minerals by depositing various factors such as surfactants [99].…”

Section: Outsidementioning

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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Section: Outsidementioning

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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“…Exposure to gamma irradiation enhanced the production of melanin pigment, as melanin pigment acts as protector of actinobacteria cells against adverse environmental conditions such as sun rays, gamma irradation, UV, and biocides [28]. Treatment of the paintings with 1,8 Dihydroxynaphthalene (DHN), an inhibitor of melanin production before gamma irradiation might reduce or inhibit melanin formation due to irradiation [29].…”

Section: Discussionmentioning

confidence: 99%

Efficiency of antibiotics and gamma irradiation in eliminating Streptomyces strains isolated from paintings of ancient Egyptian tombs

Abdel-Haliem¹,

Ali²,

Ghaly³

et al. 2013

Journal of Cultural Heritage

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“…The release of aggressive acids is one of the best known biogeochemical destructive mechanisms (Warscheid and Krumbein, 1996;Wolfgang, 1997;Warscheid and Braams, 2000) on concrete surfaces. It occurs through the leaching of binding materials with the consequent weakening of the crystal structure (Sanchez-Silva et al, 2008).…”

Section: Discussionmentioning

confidence: 99%

“…Such biosolubilization involves the production of organic acids by the metabolic activity of macroalgae. This acid deterioration is one of the best known biogeochemical mechanisms of concrete decay (Warscheid and Krumbein, 1996;Wolfgang, 1997;Warscheid and Braams, 2000). To better understand the terminology and chemical process, they are explained as follows:…”

Section: Introductionmentioning

confidence: 99%

Effect of macro algae Ulva fasciata on concrete structures

Jayakumar¹,

Saravanane²

2012

Int. J. Phys. Sci.

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Ulva fasciata is a common chlorophyceae found on all coastal structure. Puducherry, India is a coastal region in Bay of Bengal where the growth of U. fasciata (Delile) is very abundant on all marine structures. Though, it causes secondary deterioration, its significance is often underestimated. To know its effect, the basic mechanism by which U. fasciata deteriorates concrete structures has been highlighted. To ascertain the detrimental effect by marine algae, U. fasciata on coastal concrete structures, M20 grade concrete cubes were casted and kept in the coastal area where there is abundant growth of U. fasciata and also laboratory simulation has been carried out. To examine the extent of deterioration done by U. fasciata on concrete surface, samples were collected from the M20 grade concrete cubes kept in the coastal area and simulated one. The collected samples were analyzed by SEM, EDX XRD TG and FTIR to establish the degree of deterioration done by marine algae on concrete surface. The result showed that there is sustainable effect by the marine algae on the concrete surface.

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General Aspects and Selected Cases

Cited by 16 publications

References 17 publications

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

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

Efficiency of antibiotics and gamma irradiation in eliminating Streptomyces strains isolated from paintings of ancient Egyptian tombs

Effect of macro algae Ulva fasciata on concrete structures

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