Effectiveness of the anti-erosion of an MICP coating on the surfaces of ancient clay roof tiles

Liu, Shiyu; Wang, Runkai; Yu, Jin; Xing-qian, Peng; Cai, Yanyan; Tu, Bingxiong

doi:10.1016/j.conbuildmat.2020.118202

Cited by 66 publications

(26 citation statements)

References 22 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The washing effect was also observed in the reference specimens, decreasing the uptake times by more than 14%. Liu et al [ 45 ], studying the microbially induced carbonate precipitation on clay tiles, showed a reduction between 46% and 92% in the water absorption rate.…”

Section: Resultsmentioning

confidence: 99%

Use of Bioproducts Derived from Mixed Microbial Cultures Grown with Crude Glycerol to Protect Recycled Concrete Surfaces

et al. 2021

View full text Add to dashboard Cite

The large increase in the world population has resulted in a very large amount of construction waste, as well as a large amount of waste glycerol from transesterification reactions of acyl glycerides from oils and fats, in particular from the production of biodiesel. Only a limited percentage of these two residues are recycled, which generates a large management problem worldwide. For that reason, in this study, we used crude glycerol as a carbon source to cultivate polyhydroxyalkanoates (PHA)-producing mixed microbial cultures (MMC). Two bioproducts derived from these cultures were applied on the surface of concrete with recycled aggregate to create a protective layer. To evaluate the effect of the treatments, tests of water absorption by capillarity and under low pressure with Karsten tubes were performed. Furthermore, SEM-EDS analysis showed the physical barrier caused by biotreatments that produced a reduction on capillarity water absorption of up to 20% and improved the impermeability of recycled concrete against the penetration of water under pressure up to 2.7 times relative to the reference. Therefore, this bioproduct shown to be a promising treatment to protect against penetration of water to concrete surfaces increasing its durability and useful life.

show abstract

Section: Resultsmentioning

confidence: 99%

Use of Bioproducts Derived from Mixed Microbial Cultures Grown with Crude Glycerol to Protect Recycled Concrete Surfaces

et al. 2021

View full text Add to dashboard Cite

show abstract

“…Static contact angle after MICP treatment was found between 83.6° and 100° compared to a contact angle 0° for untreated samples, pointing out for an increased hydrophobicity of the tabia samples. Liu et al studied the formation of an antierosion layer by means of MICP to reduce the weathering caused by rain erosion on ancient clay roof tiles [87]. Clay samples were obtained from Shaoming Lou, a Chinese Hakka Tulou, built in 1915 and located in Longyan city.…”

Section: Microbiologically Induced Carbonate Precipitation On Solid Smentioning

confidence: 99%

“…The total color difference showed low values (∆E < 3), indicating that the MICP treatment met standard color conditions. Liu et al studied the formation of an antierosion layer by means of MICP to reduce the weathering caused by rain erosion on ancient clay roof tiles [87]. Clay samples were obtained from Shaoming Lou, a Chinese Hakka Tulou, built in 1915 and located in Longyan city.…”

Section: Microbiologically Induced Carbonate Precipitation On Solid Smentioning

confidence: 99%

See 1 more Smart Citation

Microbiologically Induced Carbonate Precipitation in the Restoration and Conservation of Cultural Heritage Materials

2020

View full text Add to dashboard Cite

Microbiologically induced carbonate precipitation (MICP) is a well-known biogeochemical process that allows the formation of calcium carbonate deposits in the extracellular environment. The high concentration of carbonate and calcium ions on the bacterial surface, which serves as nucleation sites, promotes the calcium carbonate precipitation filling and binding deteriorated materials. Historic buildings and artwork, especially those present in open sites, are susceptible to enhanced weathering resulting from environmental agents, interaction with physical-chemical pollutants, and living organisms, among others. In this work, some published variations of a novel and ecological surface treatment of heritage structures based on MICP are presented and compared. This method has shown to be successful as a restoration, consolidation, and conservation tool for improvement of mechanical properties and prevention of unwanted gas and fluid migration from historical materials. The treatment has revealed best results on porous media matrixes; nevertheless, it can also be applied on soil, marble, concrete, clay, rocks, and limestone. MICP is proposed as a potentially safe and powerful procedure for efficient conservation of worldwide heritage structures.

show abstract

“…e results showed that biobricks are suitable for use as a building material and could also be a green alternative to traditional fired clay or cement bricks. Liu et al [105] employed MICP to treat tiles to form an erosion-resistant layer and found that MICP could significantly improve the water resistance of ceramics, with higher concentrations of bacteria and cementation reagents enabling the sediment layer to provide better protection. e concentration threshold reduced the positive effect of the bacterial concentration on the water resistance of the surface of the sample, and the protection layer provided satisfactory durability and effectively alleviated the weathering of the ancient clay roofing tiles.…”

Section: Durabilitymentioning

confidence: 99%

Geotechnical Engineering Properties of Soils Solidified by Microbially Induced CaCO₃ Precipitation (MICP)

Liu

Chen

2021

Advances in Civil Engineering

View full text Add to dashboard Cite

Microbially induced calcium carbonate precipitation (MICP) uses the metabolic function of microbes to carry out biochemical reactions with other substances in the environment. Through the controlled growth of inorganic minerals, soil particles are cemented and soil pores are filled to solidify the soil and reduce its permeability. Thus, the application of this technology was foreseen in geotechnical engineering and environment (building antiseepage, contaminated soil restoration, slope soil erosion, and sand liquefaction). In this review article, based on current research findings, the urea hydrolysis and the cementation mechanism of MICP are briefly described. The influences of factors such as enzyme activity, cementation solution concentration, pH, temperature, grouting method, and particle size on MICP-treated soil are discussed. The engineering properties of MICP-treated soils are evaluated, for instance, the strength, stiffness, liquefaction resistance, permeability, and durability. The applications of MICP technology in ground improvement, geotechnical seepage control, foundation erosion resistance, and fixation of heavy metals are summarized. Finally, future directions of the development of MICP technology are elucidated to provide a reference and guidance for the promotion of MICP technology in the geotechnical engineering field.

show abstract

Effectiveness of the anti-erosion of an MICP coating on the surfaces of ancient clay roof tiles

Cited by 66 publications

References 22 publications

Use of Bioproducts Derived from Mixed Microbial Cultures Grown with Crude Glycerol to Protect Recycled Concrete Surfaces

Use of Bioproducts Derived from Mixed Microbial Cultures Grown with Crude Glycerol to Protect Recycled Concrete Surfaces

Microbiologically Induced Carbonate Precipitation in the Restoration and Conservation of Cultural Heritage Materials

Geotechnical Engineering Properties of Soils Solidified by Microbially Induced CaCO₃ Precipitation (MICP)

Contact Info

Product

Resources

About

Effectiveness of the anti-erosion of an MICP coating on the surfaces of ancient clay roof tiles

Cited by 66 publications

References 22 publications

Use of Bioproducts Derived from Mixed Microbial Cultures Grown with Crude Glycerol to Protect Recycled Concrete Surfaces

Use of Bioproducts Derived from Mixed Microbial Cultures Grown with Crude Glycerol to Protect Recycled Concrete Surfaces

Microbiologically Induced Carbonate Precipitation in the Restoration and Conservation of Cultural Heritage Materials

Geotechnical Engineering Properties of Soils Solidified by Microbially Induced CaCO3 Precipitation (MICP)

Contact Info

Product

Resources

About

Geotechnical Engineering Properties of Soils Solidified by Microbially Induced CaCO₃ Precipitation (MICP)