Influence of GGBS and Alkaline Ratio on Compression Strength of Geopolymer Concrete

Kumar, K. Vasanth; Srinivasu, Kota

doi:10.1149/10701.8897ecst

Cited by 4 publications

(1 citation statement)

References 14 publications

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“…Utilization of fly ash leads to a reduction in cement consumption in construction activities, which results in a reduction of greenhouse gases (Krithika and Kumar, 2020). With fly ash, geopolymer concrete matrix with industrial waste as binder content decreased carbon emissions by 30% to 50% (Kumar and Srinivasu, 2022).…”

Section: Introductionmentioning

confidence: 99%

Impact of Nanoscale Polyaniline and Fly Ash on Engineering Properties of Adobe Bricks for North Coast Region of Egypt

Morsy,

Zain Eldin,

El-Maghawry

et al. 2024

Misr Journal of Agricultural Engineering

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This paper describes an experimental investigation on productbased research in the development of geopolymer-stabilized adobe composites (GSAC) using natural soil (NS), fly ash (FA), and Nanoscale polyaniline polymer (PA). An alkaline medium (AM) consisting of a sodium hydroxide and sodium silicate solution was utilized. The molarity of the sodium hydroxide solution was fixed at 14 M. The ratio of sodium silicate solution to sodium hydroxide solution was fixed at 1.5. Four mixes of GSAC were formulated: the control mixture (NS & Water; T1), (NS & AM; T2), (NS, FA &AM; T3), and (NS, FA, PA & AM; T4). An extensive investigation was conducted to examine the compressive strength, physical properties, and durability of GSAC. In addition, the experimental results were confirmed at a micro-level through microstructure analysis using scanning electron microscopy (SEM). Significant effects on all the studied characters were reported. According to the results, the composites formed by PA/FA/NS geopolymer matrix showed a superior yield in the compression and density tests, with the highest value of 7.8 N/mm2 and 2.28 g/cm3, respectively, for compressive strength and density. In the water absorption test, the compounds containing the PA/FA/NS geopolymer matrix showed the lowest yield value, measuring2.02 % and 3.11% after 2 and 24 hr of soaking in water, respectively. The results of the microstructural analysis showed the best interaction between FA and NS particles with the lowest porosity, when PA was added to the matrix.

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Section: Introductionmentioning

confidence: 99%

Impact of Nanoscale Polyaniline and Fly Ash on Engineering Properties of Adobe Bricks for North Coast Region of Egypt

Morsy,

Zain Eldin,

El-Maghawry

et al. 2024

Misr Journal of Agricultural Engineering

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Microstructure characteristics of geopolymer aggregate concrete on the effect of liquid/slag ratio

Kumar,

Kumar

2023

J Build Rehabil

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Variation of sodium hydroxide concentration impact on rheological properties of geopolymer paste

Manchiryal¹,

Poloju²,

Balushi³

et al. 2023

Int. j. adv. appl. sci.

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This study focuses on novel technologies that provide breakthrough CO2 capture and performance. This research aims to identify the usual consistency and to set the time of geopolymer paste to ensure that cement may be substituted with calcined materials. However, it is necessary first to investigate the properties of geopolymer paste, including varied proportions of calcined materials and sodium hydroxide concentrations. According to the published studies, there is a shortage of studies on the entire replacement of fly ash with GGBS (0-100%) with varying concentrations of sodium hydroxide (8M-12M) with an SS/SH ratio of 2.5. Thus, this work might be unique. Moreover, this research work would stand as a benchmark for future researchers in this area. Thus, 198 specimens were prepared to determine the geopolymer paste’s normal consistency and setting behavior. The experimental results showed that increasing the amount of GGBS to geopolymer paste reduces the setting time of the paste and raises the standard consistency value for intermediate mixes compared to fly ash combinations. The key finding of this investigation is that an increase in sodium hydroxide concentration does not affect the normal consistency. As a result, the consistency is determined to be 37 percent when using a combination of 80 percent GGBS and 20 percent fly ash is shown to be the most effective in achieving higher performance.

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Influence of GGBS and Alkaline Ratio on Compression Strength of Geopolymer Concrete

Cited by 4 publications

References 14 publications

Impact of Nanoscale Polyaniline and Fly Ash on Engineering Properties of Adobe Bricks for North Coast Region of Egypt

Impact of Nanoscale Polyaniline and Fly Ash on Engineering Properties of Adobe Bricks for North Coast Region of Egypt

Microstructure characteristics of geopolymer aggregate concrete on the effect of liquid/slag ratio

Variation of sodium hydroxide concentration impact on rheological properties of geopolymer paste

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