Research on Improving Concrete Durability by Biomineralization Technology

Chen, How-Ji; Chen, Ming-Cheng; Tang, Chao-Wei

doi:10.3390/su12031242

Cited by 15 publications

(8 citation statements)

References 29 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Calcite deposition in this gap will make the compressive strength of concrete to be higher. This result is in line with research conducted by Chen et al [34].…”

Section: Compressive Strength Of Concretesupporting

confidence: 93%

The Utilization of Milk as a Catalyst Material in Enzyme-Mediated Calcite Precipitation (EMCP) for Crack-Healing in Concrete

Ihsani¹,

Putra²

2021

ced

View full text Add to dashboard Cite

This study discussed the applicability of the calcite precipitation method to repair the concrete's crack. The grouting solution of Enzyme-Mediated Calcite Precipitation (EMCP) was modified by adding milk as a catalyst in calcite formation. Cracks in concrete samples were made when the concrete was 28 days with a width of 0.1-0.3 mm. The EMCP solution composed of urease, urea, CaCl2, and milk was injected into the cracked concrete sample, and its effect on permeability and compressive strength tests were evaluated. The result shows that the optimum composition of milk used in the formation of calcite had a concentration of 5 g/L with an initial preparation temperature of 70oC, which produced 26% higher than the initial EMCP solution. The mechanical test results show that the reduction of coefficient of permeability of 92.23% compared to the cracked sample and the improve strength up to 98.75% of the non-cracked sample were obtained by three circles injection. This study elucidated that milk utilization as a catalyst material in repairing cracks with the EMCP method is a potential method for crack-healing concrete.

show abstract

“…Calcite deposition in this gap will make the compressive strength of concrete to be higher. This result is in line with research conducted by Chen et al [34].…”

Section: Compressive Strength Of Concretesupporting

confidence: 93%

The Utilization of Milk as a Catalyst Material in Enzyme-Mediated Calcite Precipitation (EMCP) for Crack-Healing in Concrete

Ihsani¹,

Putra²

2021

ced

View full text Add to dashboard Cite

show abstract

“…There is a greater tendency for studies with more than two experimental groups and a control group, as well as factorial designs. It can be observed that the most used microorganisms correspond to Bacillus subtilis [10,13,15,21,24] [27,28,30-32,34-37] and Sporosarcina pasteurii [14,23,26,[38][39][40][41][42][43][44]. In the case of Bacillus subtilis, its inherent effect has been tested and its concentration used, the contribution of other conditions such as the type of fiber, recycled material, type of immobilization, substrate used and genetic modification.…”

Section: Resultsmentioning

confidence: 99%

Bacterial Self-Healing of Concrete: A Scoping Review

Farfán Córdova,

Díaz Ortega

2023

Preprint

View full text Add to dashboard Cite

This article is a scoping review analyzing advances in experimental studies on bacterial self-healing of concrete. From Scopus, ScienceDirect, Web of Science and Google Scholar search engine databases, 54 studies were selected for analysis, and an increasing trend of publications since 2015 was found, with India as the country with the largest research presence. Different ma-terials are used as replacement or admixture in concrete, such as fibers, particles and recycled material from construction waste. It was found that the most commonly used bacteria are Bacillus subtilis and Bacillus sphaericus, which can improve the strength of concrete by generating calcite and sealing cracks. In addition, it was found that the presence of materials such as fibers, ashes and construction recyclates can protect bacteria in an alkaline environment. The designs usually in-clude more than two experimental groups and a control. In summary, this study highlights the importance of bacterial self-healing in concrete and provides information on advances in this field of research.

show abstract

“…Currently, MICP directed by urea hydrolysis, denitrification and dissimilatory sulfate reduction are the mainstay of bioconcrete production, with demonstrated improvements in mechanical strength and durability (Castro‐Alonso et al, 2019 ). Ureolytic biomineralization is used in a broad range of applications in construction and environmental protection, such as self‐healing concrete (Chen et al, 2020 ), bio‐bricks (Randall & Naidoo, 2018 ), dust stabilization (Aletayeb et al, 2021 ), ground improvement (Liu, Fan, et al, 2021 ; Liu, Zhang, et al, 2021 ) and bioremediation (Liu, Zhang, et al, 2021 ). A further benefit of using biomineralization in the production of building materials is that substrates such as granite, brick, marble and binders like fly ash, contain natural radioactivity, although this is typically very, very low but can result in unsafe levels of radon, which is a naturally occurring, hazardous radioactive gas that is formed from the decay of uranium in soil, rock and water (Eštoková & Palaščáková, 2013 ).…”

Section: The Microbiology and Architectural Contextmentioning

confidence: 99%

Towards the microbial home: An overview of developments in next‐generation sustainable architecture

Armstrong

2023

Microbial Biotechnology

View full text Add to dashboard Cite

Disruptive innovation is needed to raise the threshold of sustainable building performance, so that our buildings improve on net zero impacts and have a life-promoting impact on the natural world. This article outlines a new approach to next-generation sustainable architecture, which draws on the versatile metabolisms of microbes as a platform by incorporating microbial technologies and microbially produced materials into the practice of the built environment. The regenerative architecture arising from these interventions includes a broad range of advances from using new materials, to creating bioreceptive surfaces that promote life, and providing green, bio-remediating energy from waste. Such innovations are presently reaching the marketplace as novel materials like Biocement® with lower embodied carbon than conventional materials that adopt microbially facilitated processes, and as novel utilities like PeePower® that transforms urine into electrical energy and bioreactor-based building systems such as the pioneering BIQ building in Hamburg. While the field is still young, some of these products (e.g. mycelium biocomposites) are poised for uptake by the public-private economic axis to become mainstream within the building industry. Other developments are creating new economic opportunities for local maker communities that empower citizens and catalyse novel vernacular building practices. In particular, the activation of the microbial commons by the uptake of microbial technologies and materials through daily acts of living, 'democratises' resource harvesting (materials and energy) in ways that sustain life, and returns important decisions about how to run a home back to citizens. This disruptive move re-centres the domestic-commons economic axis to the heart of society, setting the stage for new vernacular architectures that support increasingly robust and resilient communities.

show abstract

Research on Improving Concrete Durability by Biomineralization Technology

Cited by 15 publications

References 29 publications

The Utilization of Milk as a Catalyst Material in Enzyme-Mediated Calcite Precipitation (EMCP) for Crack-Healing in Concrete

The Utilization of Milk as a Catalyst Material in Enzyme-Mediated Calcite Precipitation (EMCP) for Crack-Healing in Concrete

Bacterial Self-Healing of Concrete: A Scoping Review

Towards the microbial home: An overview of developments in next‐generation sustainable architecture

Contact Info

Product

Resources

About