A systematic review on bio-sequestration of carbon dioxide in bio-concrete systems: a future direction

Alshalif, Abdullah Faisal; Irwan, J. M.; Othman, Norzila; Al-Gheethi, Adel

doi:10.1080/19648189.2020.1713899

Cited by 33 publications

(24 citation statements)

References 105 publications

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“…The low- and high-level settings of several factors, particularly the B. tequilensis concentration (B), density of the concrete (D), temperature (T) and CO 2 concentration (CO 2 ), were input and analyzed using Minitab software (version 18, Pennsylvania State University, State College, PA, USA) and analyzed. A reasonable range for each factor was selected according to previous research findings [ 2 ], as presented in Table 3 . The next stage used to optimize the compressive strength of B-FCB by RSM analysis involved adding eight axial and two additional runs at the center points.…”

Section: Methodsmentioning

confidence: 99%

“…In addition, the relationship between the healing of the B-FCB pores and the high level of CO 2 during curing confirms the ability of the bacteria to accelerate the CO 2 sequestration process. This can be considered a future direction for CO 2 sequestration technology [ 2 ]. The results also confirmed that the high compressive strength performance of B-FCB compared to FCB was due to the healing of B-FCB pores.…”

Section: Microstructure Analysismentioning

confidence: 99%

“…Therefore, a great deal of research has been conducted to reduce the impacts of the catastrophic environmental issues due to CO 2 emission such as global warming, rising sea levels, and climate change [ 1 ]. Fossil fuel combustion and cement manufacturing are the biggest contributors to CO 2 emissions, representing around 88% [ 2 ]. The process of producing one ton of cement emits around 900 to 1000 kg of CO 2 due to the energy required to burn limestone [ 3 , 4 ].…”

Section: Introductionmentioning

confidence: 99%

“…The process of producing one ton of cement emits around 900 to 1000 kg of CO 2 due to the energy required to burn limestone [ 3 , 4 ]. Between 2005 and 2015, cement production increased worldwide by 79.5%, i.e., from 2284 to 4100 Mt/yr [ 2 , 4 ]. For this reason, various studies on concrete technology have focused on reducing cement production by using alternative materials [ 5 , 6 ].…”

Section: Introductionmentioning

confidence: 99%

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Optimization of Bio-Foamed Concrete Brick Strength via Bacteria Based Self-Healing and Bio-Sequestration of CO2

et al. 2021

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This research aimed to optimize the compressive strength of bio-foamed concrete brick (B-FCB) via a combination of the natural sequestration of CO2 and the bio-reaction of B. tequilensis enzymes. The experiments were guided by two optimization methods, namely, 2k factorial and response surface methodology (RSM). The 2k factorial analysis was carried out to screen the important factors; then, RSM analysis was performed to optimize the compressive strength of B-FCB. Four factors, namely, density (D), B. tequilensis concentration (B), temperature (T), and CO2 concentration, were selectively varied during the study. The optimum compressive strength of B-FCB was 8.22 MPa, as deduced from the following conditions: 10% CO2, 3 × 107 cell/mL of B, 27 °C of T and 1800 kg/m3 of D after 28 days. The use of B. tequilensis in B-FCB improved the compressive strength by 35.5% compared to the foamed concrete brick (FCB) after 28 days. A microstructure analysis by scanning electronic microscopy (SEM), energy dispersive X-ray (EDX) and X-ray diffraction analysis (XRD) reflected the changes in chemical element levels and calcium carbonate (CaCO3) precipitation in the B-FCB pores. This was due to the B. tequilensis surface reactions of carbonic anhydrase (CA) and urease enzyme with calcium in cement and sequestered CO2 during the curing time.

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Section: Methodsmentioning

confidence: 99%

Section: Microstructure Analysismentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Optimization of Bio-Foamed Concrete Brick Strength via Bacteria Based Self-Healing and Bio-Sequestration of CO2

et al. 2021

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“…One major reason is that the MICP offers numerous ecological benefits over conventional measures. For an instance, the Portland cement is the mostly used binder for slope protection (Daraei et al 2018;Tang et al 2018); however, its manufacturing contributes to the significant emission CO 2 and SO 2 (Alshalif et al 2020). Besides, the synthetic grouts used for surface stabilization (such as polyacrylamide and phosphor-gypsum) are reported to be highly toxic (Jiang et al 2019).…”

Section: Introductionmentioning

confidence: 99%

Effect of wetting and drying cycles on the durability of bio-cemented soil of expressway slope

Gowthaman

Nakashima

Kawasaki

2021

Int. J. Environ. Sci. Technol.

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Cyclic wet-dry is one of the influential weathering agents which can rapidly alter the mechanical properties of soils, limiting their durability and consistent performance. This study investigates the effect of wet-dry cycles on the mechanical behaviour of bio-cemented soil. Microbial-induced carbonate precipitation-based bio-cementation is an innovative soil improvement method, which is gaining increasing attention as a potential alternative for stabilizing slope surface. As the treated surfaces are exposed to repeated rainfalls and draughts, durability analysis is essential; cyclic wet-dry tests were therefore performed as a credible indicator of durability. The soil obtained from the Hokkaido expressway slope was treated at laboratory to varying cementation levels (% CaCO3) and subjected to 50 subsequent wet-dry cycles. Physical and mechanical changes were monitored using mass loss, shear wave velocities and needle penetration tests during wet-dry cycles. The results showed that the wet-dry cycles deteriorated the physical and mechanical at two stages. The mass and S-wave velocity of specimens significantly dropped after first few cycles and then tended to reach equilibrium. The second stage of notable deterioration was observed between 30 and 50 wet-dry cycles. It is suggested that the erosion of weak and powdery deposition of CaCO3 causes the degradation at the early stage, whereas the degradation in the late stage was attributed to the microstructural deformations of intact carbonate bonds. It was also found that the increase in cementation level decreases the deterioration of bio-cemented soil under wet-dry cycles.

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Compressive Strength of Bio-Fibrous Concrete

Kaur¹,

Hassan²,

Richard³

et al. 2023

Advances in Civil Engineering Materials

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A systematic review on bio-sequestration of carbon dioxide in bio-concrete systems: a future direction

Cited by 33 publications

References 105 publications

Optimization of Bio-Foamed Concrete Brick Strength via Bacteria Based Self-Healing and Bio-Sequestration of CO2

Optimization of Bio-Foamed Concrete Brick Strength via Bacteria Based Self-Healing and Bio-Sequestration of CO2

Effect of wetting and drying cycles on the durability of bio-cemented soil of expressway slope

Compressive Strength of Bio-Fibrous Concrete

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