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

Alshalif, Abdullah Faisal; Irwan, J. M.; Tajarudin, Husnul Azan; Othman, Nor Hazurina; Al-Gheethi, Adel; Altowayti, Wahid Ali Hamood; Sabah, Saddam Abo

doi:10.3390/ma14164575

Cited by 12 publications

(8 citation statements)

References 38 publications

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“…The materials used in this study are cement, sand, water and the foaming agent. Ordinary Portland Cement (OPC) with the specific surface area 2250 cm 2 /g and chemical composition details are shown in Table 1 [22].…”

Section: Materials and MIX Proportionmentioning

confidence: 99%

“…According to the British Cement Association-1994, the maximum size of fine aggregate (sand) in foamed concrete is 1.18 mm. Additionally, the percentage of sand passed through 600 microns should be between 60-90% to produce foamed concrete as shown in the particle size distribution of sand in Figure 1 [21,22]. The sand was adapted to pass through a sieve with a size of 1 mm according to BS 882-1992 [20].…”

Section: Materials and MIX Proportionmentioning

confidence: 99%

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Factors Affecting Carbonation Depth in Foamed Concrete Bricks for Accelerate CO2 Sequestration

et al. 2021

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Foamed concrete bricks (FCB) have high levels of porosity to sequestrate atmospheric CO2 in the form of calcium carbonate CaCO3 via acceleration of carbonation depth. The effect of density and curing conditions on CO2 sequestration in FCB was investigated in this research to optimize carbonation depth. Statistical analysis using 2k factorial and response surface methodology (RSM) comprising 11 runs and eight additional runs was used to optimize the carbonation depth of FCB for 28 days (d). The main factors selected for the carbonation studies include density, temperature and CO2 concentration. The curing of the FCB was performed in the chamber. The results indicated that all factors significantly affected the carbonation depth of FCB. The optimum carbonation depth was 9.7 mm, which was determined at conditions; 1300 kg/m3, 40 °C, and 20% of CO2 concentration after 28 d. Analysis of variance (ANOVA) and residual plots demonstrated the accuracy of the regression equation with a predicted R2 of 89.43%, which confirms the reliability of the predicted model.

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Section: Materials and MIX Proportionmentioning

confidence: 99%

Section: Materials and MIX Proportionmentioning

confidence: 99%

Factors Affecting Carbonation Depth in Foamed Concrete Bricks for Accelerate CO2 Sequestration

et al. 2021

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“…These pollutants cause air pollution and lead to the greenhouse effect. For the time being, the biological and geological approach could be adopted for CO 2 sequestration [5]. In addition, obtaining aggregates from quarries and rivers sides lead to the depletion of natural resources.…”

Section: Introductionmentioning

confidence: 99%

A Systematic Review of the Concrete Durability Incorporating Recycled Glass

et al. 2023

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This systematic literature review (SLR) aims to present and analyze the recent research on the effect of recycled glass (RG) on the durability of concrete applications in terms of transport properties, chemical attack, alkali-silica reaction (ASR), and freeze/thaw (FT). RG could be utilized in concrete as a replacement or addition in three forms, namely glass powder (GP), glass aggregate (GA), and glass fiber (GF). The methodology of this study was based on a criterion for the selection process of reviewed studies to assess and synthesize the knowledge of the durability of RG in concrete. The articles were assessed and screened, then 114 review articles were selected. The direction of utilization of RG in concrete depends on the type, particle size, and pozzolanic performance. The valorization of RG had a positive impact on the durability of concrete; however, the mutual synergy of multiple substitutions with glass also had better results. Nowadays, fine glass aggregate (FGA) could be promoted to be used as a partial substitute for sand due to the easiness of recycling. Furthermore, GF is strongly encouraged to be used in fiber concrete. An analytical framework that highlights the durability improvement of glass-modified concrete is presented. The results suggested that it is technically feasible to utilize glass as a part of concrete in the production of durable concrete. It provides a higher resistance to transport properties and chemical attacks by providing an extended lifespan. In addition, RG plays a great role in FT action in cold climates while it does not have a significant impact on ASR, provided refinement of glass results in the reduction of ASR and thus overcomes the expansion and cracks of concrete. However, up to 20% GP and up to 30% fine glass aggregate (FGA) could be replaced with cement and aggregate, respectively, to achieve a positive effect on durability based on the W/C ratio provided, not compromising the strength.

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“…The self-healing mechanism is produced because of chemical reactions of a self-healing agent embedded directly, embedded in capsules or introduced through vascular networks when designing and making the concrete mixture. Among the most used systems are superabsorbent polymers [9], [10], crystalline mixtures [11], [12], microencapsulated sodium silicate [13], tubes with adhesives [14][15][16] and bacteria [17][18][19][20].…”

Section: Introductionmentioning

confidence: 99%

Research on the production of cement composites with autonomous self-healing performance

Panfil Toader,

Mircea,

Hegyi

et al. 2022

MATEC Web Conf.

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In a time when the attention paid to identifying the possibilities of reducing problems due to urban pollution is increasing, the construction industry has a lot to gain if it aligns itself with the new trends of sustainable development in the field. In this context, the objective of obtaining a concrete with self-healing properties of cracks is more than appropriate, becoming a sustainable alternative for reducing the maintenance costs of transport infrastructure by increasing their operating time and by decreasing the need for the volume of repair and maintenance works, thus indirectly contributing to the reduction of environmental pollution. Preliminary results obtained using a cementitious composite with waterproofing admixture content by mass crystallization are encouraging by identifying the existence of an autonomous healing degree (closure of cracks with average opening 20-40 µm) in a proportion of at least 65% after only 96 hours of exposure in a wet-dry environment, respectively and of at least 96% after 480 hours of conditioning. The degree of novelty and value of this research is mainly due to the approach of this type of composite produced by adapting the general principles to local raw materials, including the use of specific industrial waste and by-products available in Romania (fly ash and limestone slurry).

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

Cited by 12 publications

References 38 publications

Factors Affecting Carbonation Depth in Foamed Concrete Bricks for Accelerate CO2 Sequestration

Factors Affecting Carbonation Depth in Foamed Concrete Bricks for Accelerate CO2 Sequestration

A Systematic Review of the Concrete Durability Incorporating Recycled Glass

Research on the production of cement composites with autonomous self-healing performance

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