Effect evaluation of microbial mineralization for repairing load-induced crack in concrete with a cyclic injection-immersion process

Lu, Chenghao; Ge, Hao; Li, Zhongao; Zheng, Yulong

doi:10.1016/j.cscm.2022.e01702

Cited by 3 publications

(3 citation statements)

References 32 publications

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“…The researchers found similar effects for potential applications in terms of indirect tensile testing following the bacterial repair of cracks in cement mortars [34]. Therefore, it can be concluded that the repair of asphalt concrete samples by MICP does increase the indirect tensile strength of the samples [35]. The mineralization products act as cementitious fillers in the cracks, and the ITS increase is more pronounced for small crack widths.…”

Section: Permanent Deformationmentioning

confidence: 75%

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Experimental Investigation on the Influence of Crack Width of Asphalt Concrete on the Repair Effect of Microbially Induced Calcite Precipitation

et al. 2023

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The appearance of cracks is one of the reasons that affect the performance of asphalt pavement, and traditional repair methods have the potential problem of causing adverse effects on the environment. In this paper, an environmentally friendly method for asphalt concrete crack repair was investigated using microbially induced calcite precipitation (MICP) for asphalt concrete cracks of different widths (0.5 mm, 1.0 mm, 1.5 mm, and 3 mm), and the effectiveness of repair was evaluated using nondestructive and destructive experiments. A varied ultrasonic pulse velocity was used to evaluate the healing process, and it was found that the samples with an initial crack width of 0.5 mm showed the most significant increase in wave velocity of 18.06% after repair. The results also showed that the uniaxial compressive strength and indirect tensile strength of the MICP-repaired samples recovered up to 47.02% and 34.68%. Static creep test results showed that MICP-repaired samples with smaller width cracks had greater resistance to permanent deformation. The results of uniaxial compressive strength tests on larger width (3 mm) cracks repaired by MICP combined with fibers showed that the strength of the samples was significantly increased by the addition of fibers. In addition, the SEM/EDS results showed that the MICP products were spherical calcite particles with a particle size distribution from 0 to 10 μm. This study shows that MICP has some potential for repairing cracks in asphalt concrete of different widths within the range investigated.

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Section: Permanent Deformationmentioning

confidence: 75%

“…Therefore, it can be concluded that the repair of asphalt concrete samples by MICP does increase the indirect tensile strength of the samples [35]. The mineralization products act as cementitious fillers in the cracks, and the ITS increase is more pronounced for small crack widths.…”

Section: Itsmentioning

confidence: 91%

Experimental Investigation on the Influence of Crack Width of Asphalt Concrete on the Repair Effect of Microbially Induced Calcite Precipitation

et al. 2023

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“…In terms of mineralization storage derivative applications, microbial-induced mineralization is primarily employed in soil reinforcement [136,137], micro-crack repair [138], cement bonding [139], environmental remediation, and other domains [140]. Carbonate formed by carbon dioxide mineralization in reservoirs can be employed to plug dominant seepage pathways, thereby improving volumetric sweep efficiency and oil recovery.…”

Section: Comparisons Of the Natural And Microbial-catalyzed Sequestra...mentioning

confidence: 99%

CO2 Mineralized Sequestration and Assistance by Microorganisms in Reservoirs: Development and Outlook

Ni,

Lv,

et al. 2023

Energies

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The goals of carbon neutrality and peak carbon have officially been proposed; consequently, carbon dioxide utilization and sequestration technology are now in the limelight. Injecting carbon dioxide into reservoirs and solidifying and sequestering it in the form of carbonates after a series of geochemical reactions not only reduces carbon emissions but also prevents carbon dioxide from leaking out of the formation. Carbon dioxide mineralization sequestration, which has good stability, has been considered the best choice for large-scale underground CO2 sequestration. To provide a comprehensive exploration of the research and prospective advancements in CO2 mineralization sequestration within Chinese oil and gas reservoirs, this paper undertakes a thorough review of the mechanisms involved in CO2 mineralization and sequestration. Special attention is given to the advancing front of carbon dioxide mineralization, which is driven by microbial metabolic activities and the presence of carbonic anhydrase within oil and gas reservoirs. The paper presents an in-depth analysis of the catalytic mechanisms, site locations, and structural attributes of carbonic anhydrase that are crucial to the mineralization processes of carbon dioxide. Particular emphasis is placed on delineating the pivotal role of this enzyme in the catalysis of carbon dioxide hydration and the promotion of carbonate mineralization and, ultimately, in the facilitation of efficient, stable sequestration.

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Analysis of coal dust consolidation performance and mechanism based on in-situ screening of high urease-producing bacteria

Zhou,

Lv,

et al. 2024

Journal of Environmental Chemical Engineering

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Effect evaluation of microbial mineralization for repairing load-induced crack in concrete with a cyclic injection-immersion process

Cited by 3 publications

References 32 publications

Experimental Investigation on the Influence of Crack Width of Asphalt Concrete on the Repair Effect of Microbially Induced Calcite Precipitation

Experimental Investigation on the Influence of Crack Width of Asphalt Concrete on the Repair Effect of Microbially Induced Calcite Precipitation

CO2 Mineralized Sequestration and Assistance by Microorganisms in Reservoirs: Development and Outlook

Analysis of coal dust consolidation performance and mechanism based on in-situ screening of high urease-producing bacteria

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