Effect of pozzolanic materials in geopolymer mortar using industrial waste material

Karthikesan, A K; Mohana, R.

doi:10.1088/1757-899x/872/1/012190

Cited by 2 publications

(1 citation statement)

References 11 publications

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“…The grain size of the fly ash before ball milling process was 827 nm which is processed for 5 hours in ball mill and the particle size reduced to 244 nm as shown in Figure 1. Due to the reduced particle size, the nanofly ash particles acts as a better filler material and enhanced the mechanical strength of the geopolymer mortar by filling the pores present in the microstructure as per the results of the previous research work 16 …”

Section: Methodsmentioning

confidence: 61%

Corrosion assessment of ferrocement element with nanogeopolymer for marine application

Rajendran¹

2021

Structural Concrete

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Corrosion is the major reason which limits the practical application of ferrocement structures in the marine environment. To protect the thin and strong wire mesh reinforcement, preventive methods are required to be employed. One of such methods implemented in this paper is novel application of geopolymer mortar on the surface of the wire mesh. The microstructural pores present in the highly durable fly ash based geopolymer mortar are further enhanced by using nanomodified fly ash particles to achieve the impermeable surfaces. Effect of alkaline solution concentration on the chloride ion penetration and corrosion has been investigated by using the different concentration of sodium hydroxide solution from 8 to 14 M. From the results, it is noted that for the geopolymer specimens, the chloride ions penetration values of 542.70 Coulombs is observed at 28 days which comes under the category of very low as per ASTM C1202‐10. The chloride ion penetration observed in geopolymer specimen is 17% lesser than ferrocement panel with conventional cement mortar. The time taken for cracking is delayed in the case of ferrocement panel with geopolymer mortar of 10 M concentrated sodium hydroxide solution by thrice the times of specimen with conventional cement mortar. This indicates that the incorporation of nanogeopolymer in ferrocement element not only increased the strength but also its serviceability against cracking and corrosion resulted in the extensive application of ferrocement construction in marine environment.

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Section: Methodsmentioning

confidence: 61%

Corrosion assessment of ferrocement element with nanogeopolymer for marine application

Rajendran¹

2021

Structural Concrete

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Development of alkali activated paver blocks for medium traffic conditions using industrial wastes and prediction of compressive strength using random forest algorithm

Ganesh,

Mohana,

Loganathan

et al. 2023

Sci Rep

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Geopolymer is an environment friendly construction material that could be synthesized using either the natural source or the industrial byproducts such as flyash and GGBS. The characteristics of the Geopolymer rely on the proportion of the flyash and GGBS and the concentration of the activator solution used. In this research work, the effect of partial replacement of flyash with GGBS in proportions such as 0, 10, 20, 30 and 40% is investigated. Also Molarity of NaOH are tested from 8 to 14 M and both the parameters are optimized. In this optimized Geopolymer concrete, the utilization of iron slag as a partial substitute for river sand in various proportions such as 10, 15, 20, 25, 30 35, 40 and 45% are investigated. The optimized Geopolymer concrete with iron slag is investigated for its performance as a paver block with incorporation of banana fiber in proportions such as 0, 0.5, 1 and 1.5 and is compared with conventional cement concrete paver block. The results show that there is a significant enhancement in the properties of Geopolymer concrete with the different levels of optimization and the utilization of natural banana fiber. The developed sustainable paver block was found to with stand medium traffic conditions as per IS 15658:2006. Further this study employed random forest (RF) algorithm for the prediction of compressive strength of geopolymer concrete specimens for the variable parameters such as molarity of alkaline solution, Flyash/GGBS ratio and partial replacement of river sand with iron slag. The performance evaluation parameters represented high accuracy of developed RF model. This research work unleashes a heft potential of Geopolymer concrete to develop economical eco-friendly sustainable paver blocks to the society through mitigation of environmental strain on the ecosystem.

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Effect of pozzolanic materials in geopolymer mortar using industrial waste material

Cited by 2 publications

References 11 publications

Corrosion assessment of ferrocement element with nanogeopolymer for marine application

Corrosion assessment of ferrocement element with nanogeopolymer for marine application

Development of alkali activated paver blocks for medium traffic conditions using industrial wastes and prediction of compressive strength using random forest algorithm

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