A critical review of biomineralization in environmental geotechnics: Applications, trends, and perspectives

Wang, Yijie; Jiang, Ning-Jun

doi:10.1016/j.bgtech.2023.100003

Cited by 46 publications

(5 citation statements)

References 67 publications

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“…MICP-treated specimen is similar to soft rock, and its mechanical properties are between soil and rock (Jin et al, 2022;Zhang et al, 2023;). Therefore, the D-P criterion is adopted to represent the microelement strength of MICP-treated specimen, and its expression is as follows:…”

Section: D-p Destruction Criteriamentioning

confidence: 99%

Statistical damage constitutive model of MICP-treated specimens based on Lognormal Distribution

Jiang,

Huang,

et al. 2024

Preprint

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Microbial-induced carbonate precipitation (MICP) technique have the potential to be an eco-friendly and sustainable solution for engineering problems that has presented promise in various geotechnical applications. Despite the extensive amounts of studies about the MICP technique has been conducted recently, there are few studies on the constitutive model of MICP-treated specimens. In this study, the statistical damage constitutive model of MICP-treated specimens was established based on the statistical theory and damage mechanics theory. The model assumed that the microelement strength of bio-cemented sand obeys the log-normal random distribution and the D-P criterion. The parameters S0 and F0 in the constitutive model were determined and the physical significance of parameters were discussed accordingly. The reasonableness of the proposed model were verified by comparing the theoretical results and the experimental results. The evolution of the damage variable (D), parameter S0 and parameter F0 with different calcium carbonate content (CCC) were analyzed. The statistical damage models based on log-normal distributions was then compared with that based on Weibull distributions. The results show that the parameter F0 and S0 can reflect the limiting strength and brittleness of MICP-treated specimens, respectively. The damage rate accelerates with increase in cementation level, leading to larger damage values. The damage variables eventually reaches a stable value as the axial deformation increases. The proposed model can reflect the strain softening and strain hardening phenomena well, which can also represent the shear expansion and shear contraction characteristics of the volume strain curve. Overall, the research in this study provide some theoretical support for the engineering application of MICP-treated specimens.

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Section: D-p Destruction Criteriamentioning

confidence: 99%

Statistical damage constitutive model of MICP-treated specimens based on Lognormal Distribution

Jiang,

Huang,

et al. 2024

Preprint

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“…Biotechnical solutions, another aspect of sustainable foundation engineering, focus on harnessing natural processes for soil stabilization and enhancement. The most recognized biotechnical solution is bio-cementation, a process that employs microorganisms to instigate calcite precipitation within soil, thereby bolstering its strength and reducing permeability [56]. This approach shows promise not only from a sustainability standpoint but also for its potential to augment the performance of soilstructure systems.…”

Section: Biotechnical Solutionsmentioning

confidence: 99%

Soil-Structure Interaction: Understanding and Mitigating Challenges

Akbar Firoozi,

Asghar Firoozi

2024

Civil Engineering

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This chapter provides a comprehensive analysis of Soil-Structure Interaction (SSI), a key component in solving complex engineering challenges amidst rapid urbanization and changing environmental conditions. It elucidates the theoretical principles and practical implications of SSI, emphasizing its role in creating sustainable and resilient engineering solutions. The chapter explores the soil\'s response to different load scenarios, highlighting the impact on structural reliability and integrity. The narrative includes real-world case studies demonstrating the practical application of SSI principles, advocating their integration into contemporary construction methodologies for improved structural safety. It also outlines innovative strategies to tackle SSI-related challenges, such as employing advanced materials and computational models. Finally, the focus is placed on sustainability and resilience-driven solutions designed to withstand the tests of time and climate change. Serving as a valuable guide for various stakeholders in the field, this chapter underscores the significance of SSI in the development of environmentally conscious and structurally robust constructions.

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“…These minerals can be oxides, carbonates, phosphates and sulfates ( Gadd, 2021 ). Specifically, the formation of carbonate structures mediated by biological organisms such as microorganisms, algae or mollusks is of great interest in materials science, biotechnological applications, geotechnical engineering, bioremediation, among others ( Meyers et al, 2006 ; Zhang et al, 2023 ).…”

Section: Introductionmentioning

confidence: 99%

MICP mediated by indigenous bacteria isolated from tailings for biocementation for reduction of wind erosion

Maureira,

Zapata,

Olave

et al. 2024

Front. Bioeng. Biotechnol.

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In this study, native ureolytic bacteria were isolated from copper tailings soils to perform microbial-induced carbonate precipitation (MICP) tests and evaluate their potential for biocement formation and their contribution to reduce the dispersion of particulate matter into the environment from tailings containing potentially toxic elements. It was possible to isolate a total of 46 bacteria; among them only three showed ureolytic activity: Priestia megaterium T130-1, Paenibacillus sp. T130-13 and Staphylococcus sp. T130-14. Biocement cores were made by mixing tailings with the isolated bacteria in presence of urea, resulting similar to those obtained with Sporosarcina pasteurii and Bacillus subtilis used as positive control. Indeed, XRD analysis conducted on biocement showed the presence of microcline (B. subtilis 17%; P. megaterium 11. 9%), clinochlore (S. pasteurii, 6.9%) and magnesiumhornblende (Paenibacillus sp. 17.8%; P. megaterium 14.6%); all these compounds were not initially present in the tailings soils. Moreover the presence of calcite (control 0.828%; Paenibacillus sp. 5.4%) and hematite (control 0.989%; B. subtilis 6.4%) was also significant unlike the untreated control. The development of biofilms containing abundant amount of Ca, C, and O on microscopic soil particles was evidenced by means of FE-SEM-EDX and XRD. Wind tunnel tests were carried out to investigate the resistance of biocement samples, accounted for a mass loss five holds lower than the control, i.e., the rate of wind erosion in the control corresponded to 82 g/m2h while for the biocement treated with Paenibacillus sp. it corresponded to only 16.371 g/m2h. Finally, in compression tests, the biocement samples prepared with P. megaterium (28.578 psi) and Paenibacillus sp. (28.404 psi) showed values similar to those obtained with S. pasteurii (27.102 psi), but significantly higher if compared to the control (15.427 psi), thus improving the compression resistance capacity of the samples by 85.2% and 84.1% with respect to the control. According to the results obtained, the biocement samples generated with the native strains showed improvements in the mechanical properties of the soil supporting them as potential candidates in applications for the stabilization of mining liabilities in open environments using bioaugmentation strategies with native strains isolated from the same mine tailing.

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A critical review of biomineralization in environmental geotechnics: Applications, trends, and perspectives

Cited by 46 publications

References 67 publications

Statistical damage constitutive model of MICP-treated specimens based on Lognormal Distribution

Statistical damage constitutive model of MICP-treated specimens based on Lognormal Distribution

Soil-Structure Interaction: Understanding and Mitigating Challenges

MICP mediated by indigenous bacteria isolated from tailings for biocementation for reduction of wind erosion

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