Bacterium-incorporated fly ash geopolymer: a high-performance, thermo-stable cement alternative for future construction material

Chatterjee, A.; Sarkar, Atreyee; Ghosh, Swapankumar; Mandal, Saroj; Chattopadhyay, Brajadulal

doi:10.1007/s10098-019-01749-2

Cited by 16 publications

(17 citation statements)

References 21 publications

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“…Conversely, at 56 and 90 days, the rate of strength increment declined to 4.9% and 3.1%, respectively. Several studies have reported similar increases in the strength of concretes (5–30%) prepared with different EM percentages [ 60 , 61 , 62 , 63 , 64 , 65 , 66 , 67 , 68 , 69 ].…”

Section: Results Analysis and Discussionmentioning

confidence: 91%

Effective Microorganisms and Glass Nanopowders from Waste Bottle Inclusion on Early Strength and Microstructure Properties of High-Volume Fly-Ash-Based Concrete

et al. 2022

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In concrete production, the use of high-volume fly ash (FA) as the cement substitute became interesting to achieve more sustainable and eco-friendly construction materials. However, concrete produced using high volumes of FA as cement substitute suffers from various limitations such as low strength at early ages. Considering the engineering solutions and economy of FA-included concrete, it has become vital to address such issues. In this perception, some concrete mixes were designed using more abundant and low-cost local waste materials such as waste glass bottle nanopowders (WGBNPs) and effective microorganisms (EMs) to determine the feasibility of compensating for the strength loss at early ages due to FA inclusion. The proposed mixes contained 10% of EMs as water replacement, 50% of FA, and various percentages of WGBNPs as cement replacement. The effects of EMs and WGBNPs inclusion on the early strength and microstructure properties of the produced FA-based concrete mixes were determined. The results show that the strength indexes of the concrete at all test ages were improved due to WGBNP and EM incorporation. At almost all curing ages, the mechanical performance of the concrete made with 10% EMs and 4% WGBNPs was comparable to that of normal concrete (control mix), wherein the mix containing 6% WGBNPs outperformed the control mix. The microstructure analysis of the studied mixes revealed an increase in the hydration products, structural compactness, and homogeneity due to the synergy of WGBNPs and EMs, especially the specimen made using 10% EMs and 6% WGBNPs. It is established that the proper utilization of EMs and WGBNPs in FA-based concrete can be beneficial for waste recycling and landfill problems, thus lowering environment pollution.

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Section: Results Analysis and Discussionmentioning

confidence: 91%

Effective Microorganisms and Glass Nanopowders from Waste Bottle Inclusion on Early Strength and Microstructure Properties of High-Volume Fly-Ash-Based Concrete

et al. 2022

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“…This has been verified by the conductance of microstructural investigation over the self-healed products. Chatterjee et al (2019) reported the formation of calcite and gehlenite compounds due to the bacterial action by bacillus subtillus inside fly ash based GPC mortar. Studies by Jadhav et al (2018) over meta- kaolin based GPC were also found to be in accordance with the observed behavior.…”

Section: Discussionmentioning

confidence: 99%

“…Jonkers (2011) reported that bacteria that exist in the matrix act as a catalyst and transform the precursor compound to filler material and fills the crack. Bacterial strain used in the concrete varies as Bacillus Pasteurii, Sporosarcina Pasteurii, Bacillus Subtillis, Bacillus Sphaericus, Bacillus Licheniformis and Bacillus Thuringiensis (Andalib et al 2015;Wulandari et al 2018;Jadhav et al 2018;Chatterjee et al 2019;Seifan et al 2019;Morsali et al 2019;Ganesh et al 2019). Extensive studies have been concentrated on the application of a single type of bacterial strain inside cementations matrix and only a few focuses on co-culturing of two bacteria inside geopolymer matrix.…”

Section: Introductionmentioning

confidence: 99%

Influence of Bacterial Strain Combination in Hybrid Fiber Reinforced Geopolymer Concrete subjected to Heavy and Very Heavy Traffic Condition

Ganesh¹,

Muthukannan

Kumar

et al. 2021

ACT

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“…The capillary penetration of water in the metakaolin based BMGP specimen decreased by 75% when compared with that of control mix [30]. The water absorption (WA), acid, sulphate and chloride attack resistance improved with the incorporation of bacillus subtilis in fly ash based GPC, which is attributed to the decrease in pore size with the incorporation of bacteria in the geopolymer system [28].…”

Section: Studies Focussed On Durability Performance and Microstructur...mentioning

confidence: 96%

“…The CS, STS and FS of BMGP have been reported as 40.65 MPa, 2.21 MPa and 7.65 MPa, respectively [34]. An increase of 44% CS with the incorporation of Bacillus Subtilis in fly ash based BMGP [28].…”

Section: Studies Focussed On the Type Of Bacteria Used In Bmgpmentioning

confidence: 99%

The Potential use of Bio-mineralization Technique in Developing Eco-Sustainable Self-Healing Geopolymer Binder: A Systematic Review

Lekshmi,

Benjamin,

Sudhakumar

2023

IOP Conf. Ser.: Earth Environ. Sci.

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The enormous demand for concrete as a construction material over the globe has proliferated the production of cement. It has been reported that the production of one ton of cement produces approximately one ton of carbon dioxide gas to the atmosphere. In geopolymer system, the use of cement is eliminated by using aluminosilicate rich industrial and agricultural waste as source material, which is activated by an alkaline medium. Biomineralization in concrete by using microorganisms is a technique used to enhance the mechanical and durability performance of concrete by imparting self-healing of cracks generated in the system. This paper reviews the feasibility of microbial inclusion in geopolymers. In this review, the mechanical and durability characteristics of microbial geopolymer binders along with the observations of microstructural characterization are elucidated. The mechanical properties in terms of compressive strength, split tensile strength and flexural strength are studied systematically from the existing literature. The durability studies of bio-mineralized geopolymer binder (BMGP) in terms of water absorption, sorptivity, acid attack resistance, sulphate attack resistance and resistance towards freeze thaw effect are analysed in the study. Also, the possible applications of biomineralized microbial geopolymer concrete are critically reviewed in this paper

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Bacterium-incorporated fly ash geopolymer: a high-performance, thermo-stable cement alternative for future construction material

Cited by 16 publications

References 21 publications

Effective Microorganisms and Glass Nanopowders from Waste Bottle Inclusion on Early Strength and Microstructure Properties of High-Volume Fly-Ash-Based Concrete

Effective Microorganisms and Glass Nanopowders from Waste Bottle Inclusion on Early Strength and Microstructure Properties of High-Volume Fly-Ash-Based Concrete

Influence of Bacterial Strain Combination in Hybrid Fiber Reinforced Geopolymer Concrete subjected to Heavy and Very Heavy Traffic Condition

The Potential use of Bio-mineralization Technique in Developing Eco-Sustainable Self-Healing Geopolymer Binder: A Systematic Review

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