Evaluation of Structural Performance of Concrete with Ambient-Cured Alkali-Activated Binders

Ramagiri, Kruthi Kiran; Chauhan, Darshan Rajesh; Gupta, Shashank; Kar, Arkamitra; Adak, Dibyendu

doi:10.1007/978-3-030-26365-2_1

Cited by 4 publications

(6 citation statements)

References 12 publications

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“…For example, some authors [12,15,[18][19][20][23][24][25]34,36] were engaged in research aimed at improving the corrosion resistance of cement-based concrete, which are the most traditional type of concrete in current construction but are not environmentally friendly and cheap, leaving a high carbon footprint and not in line with the modern ESG agenda. Other authors [7][8][9][10][11]22,27,29,31,35] were engaged in developing compositions of geopolymer concrete aimed at improving the mechanical properties of such concrete: their strength and improvement of deformation properties.…”

Section: Discussionmentioning

confidence: 99%

“…Thus, we have conducted a study in which the physical and mathematical apparatus is phenomenologically specified and technological tools are used, which are based on existing knowledge and ideas about the operation of geopolymer concrete in aggressive environments. Based on the data obtained earlier by other authors [1][2][3][4][5][6][7][8][9][10][11][12][13][14][26][27][28][29][30][31], in terms of heavy concrete on a standard cement binder and geopolymer concrete with improved mechanical characteristics, we set a methodology, defining a range of certain assumptions and frameworks to improve and increase durability and corrosion resistance.…”

Section: Discussionmentioning

confidence: 99%

“…The search for sustainable alternative concrete mixes to obtain "green concrete" to reduce environmental impact and consider economic efficiency is reflected in studies [30,31]. The effectiveness of alkali-activated concretes (AAC) with natural and recycled coarse aggregates and bacterial concretes (BC) was evaluated by the degree of environmental impact, cost, and global warming potential [30].…”

Section: Literature Reviewmentioning

confidence: 99%

“…Of no small importance is the correct selection of the composition of concrete based on an alkali-activated binder in the form of fly ash and slag as a replacement for cement. Recommendations are given on the rational ratio of the components of concrete cured under environmental conditions, both in terms of strength and economic efficiency [31].…”

Section: Literature Reviewmentioning

confidence: 99%

“…According to literature sources [1][2][3][4][5][6][7][8][9][10][11][12][13][14]28,30,31,46], Na 2 SiO 3 , NaOH, and KOH are used as the most common alkaline components to obtain geopolymers. The choice of alkaline activators data is explained by the highest reactivity of the aluminosilicate component with respect to the glass phase and athermicity during their production.…”

Section: Designing the Composition And Properties Of Geopolymer Binde...mentioning

confidence: 99%

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Increasing the Corrosion Resistance and Durability of Geopolymer Concrete Structures of Agricultural Buildings Operating in Specific Conditions of Aggressive Environments of Livestock Buildings

et al. 2022

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The problem of increasing the service life of buildings and structures for agricultural purposes operated in aggressive environments is relevant. The aim and scientific novelty of the work were to determine the relationship between the structure and properties of geopolymer concretes in aggressive environments. The properties of various concrete compositions under the influence of a solution of lactic, acetic, and oxalic acids were studied. With an exposure time of 90 days in an aggressive environment, samples of concrete based on a geopolymer binder had up to 6% less loss of strength and up to 10% less weight loss than concrete based on a cement binder. The effectiveness of the developed composition and technological solutions was confirmed, and it was quantitatively expressed in increased compressive strength and tensile strength in bending by 81.0% and 73.5%, respectively. It has been established that raising the heat treatment temperature to 80 °C leads to increased compressive strength for all compositions of geopolymer binders. The most favorable heat treatment conditions are created at 80 °C. The relations of the strength characteristics of geopolymer binders are revealed, which allow a detailed quantitative and qualitative assessment of the influence of the studied factors on the change in the system “composition—hardening conditions—properties” and can be used in the development of production compositions of binders and composites based on them, as well as their regulation—physical, mechanical, and operational characteristics.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Literature Reviewmentioning

confidence: 99%

Section: Literature Reviewmentioning

confidence: 99%

Section: Designing the Composition And Properties Of Geopolymer Binde...mentioning

confidence: 99%

See 3 more Smart Citations

Increasing the Corrosion Resistance and Durability of Geopolymer Concrete Structures of Agricultural Buildings Operating in Specific Conditions of Aggressive Environments of Livestock Buildings

et al. 2022

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Shrinkage, compressive and bond strengths of alkali activated/cement powder for alternative coating applications

Phiangphimai

Joinok

Phoo-ngernkham

et al. 2023

Construction and Building Materials

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Utilization of optimized microwave sintering to produce safe and sustainable one-part alkali-activated materials

Refaat

Mohsen

Nasr

et al. 2023

Sci Rep

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Sodium hydroxide (NaOH) as an alkaline activator presents a vital limitation in the mass production of alkali-activated binders due to its severe effect on users’ safety. In this study, safe and sustainable one-part alkali-activated slag mixes (OP-AAS) were prepared through an efficient microwave sintering for a mixture of active amorphous ground granulated blast furnace slag (GGBFS) and sodium hydroxide powder (NaOH). Different microwave-sintered powders were prepared using microwave energy of power 900 W for the mixture at different treatment periods (10, 20, and 30 min). Fresh and hardened properties of different OP-AAS mixes were studied. Moreover, the phase composition and microstructure were investigated using X-ray diffraction (XRD) analysis and scanning electron microscope (SEM). Cytotoxicity/viability testing was performed to evaluate the cell death induced by the developed materials to measure their safety for the user. According to compressive strength, cytotoxicity/viability analysis, environmental impact and cost calculation of developed OP-AAS, it is concluded that employing microwave sintering for a short duration is sufficient to produce safe binding materials with adequate mechanical properties suitable for commercial applications in the construction sector.

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Evaluation of Structural Performance of Concrete with Ambient-Cured Alkali-Activated Binders

Cited by 4 publications

References 12 publications

Increasing the Corrosion Resistance and Durability of Geopolymer Concrete Structures of Agricultural Buildings Operating in Specific Conditions of Aggressive Environments of Livestock Buildings

Increasing the Corrosion Resistance and Durability of Geopolymer Concrete Structures of Agricultural Buildings Operating in Specific Conditions of Aggressive Environments of Livestock Buildings

Shrinkage, compressive and bond strengths of alkali activated/cement powder for alternative coating applications

Utilization of optimized microwave sintering to produce safe and sustainable one-part alkali-activated materials

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