Green and Sustainable Concrete – The Potential Utilization of Rice Husk Ash and Egg Shells

Jhatial, Ashfaque Ahmed; Goh, Wan Inn; Mo, Kim Hung; Sohu, Samiullah; Bhatti, Imtiaz Ali

doi:10.28991/cej-2019-03091226

Cited by 38 publications

(23 citation statements)

References 22 publications

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“…Calcium-rich ESP has a similar chemical composition to the cement. Furthermore, ESP comprises the approximately same amount of CaO as cement [7,8]. On the other hand, FA also contains some pozzolanic minerals viz.…”

Section: Introductionmentioning

confidence: 99%

Potential Application of Heat Cured Eggshell Powder and Flyash-Based Geopolymer in Pavement Construction

Shekhawat

Sharma

Singh

2020

Int. J. of Geosynth. and Ground Eng.

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In this research, the application of eggshell powder (ESP) and flyash (FA) as calcium oxide and alumino-siliceous precursors to produce a feasible geopolymer for pavement construction was studied. Effect of heat curing on long-term mechanical strength development of the geopolymer was also evaluated. The ESP is a waste-by-product produced from crushing waste eggshells, whilst FA is a waste-by-product generated from the coal-fired electricity production plant. Geopolymer composites were produced using three activator ratios Na 2 SiO 3 /NaOH − 0.5, 1.0, and 2.0 with a fixed 10 M concentration of NaOH. The curing process was done at 50 °C and 80 °C temperatures for 7 days, 28 days, and 56 days. The optimum activator content (OAC) providing the maximum dry unit weight (MDU) was found to increase with an increment in activator ratio and FA replacement ratio. Na 2 SiO 3 /NaOH − 2.0 was found as an optimum activator ratio providing the highest unconfined compressive strength (UCS) and the highest split tensile strength (STS). Similarly, optimum precursor ratio providing the highest UCS followed by highest STS was found as ESP 50 :FA 50 . Microstructural analysis showed that cementitious products were formed for the ESP-FA geopolymer at the optimum activator ratio and heat conditions.

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Section: Introductionmentioning

confidence: 99%

Potential Application of Heat Cured Eggshell Powder and Flyash-Based Geopolymer in Pavement Construction

Shekhawat

Sharma

Singh

2020

Int. J. of Geosynth. and Ground Eng.

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“…ESP is a smooth surface and it is grainded by the machines. From the good quality of eggshells 2.2 grams of calcium carbonate is generated and which is used as cement [3][9] [16]. In the every drt eggshell, 95 percentage of calcium content is available [7][10] [15].Eggshells are waste products from bakeries, fast food restaurants, and chick hatcheries.…”

Section: B Eggshell Powder (Esp)mentioning

confidence: 99%

Partial Replacement of Cement and Coarse Aggregate by Egg Shell Powder and Coconut Shells

A*¹,

B²,

Yadav³

et al. 2020

IJITEE

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The issues of sustainability are of prime concern these days as we use a large number of natural resources for producing materials such as construction materials. The recent trend in the construction industry is to use the alternative source of construction materials which can substitute the use of natural materials to reduce environmental impact in terms of energy consumption, pollution, waste disposal, and global warming. Aiming at characterizing the behavior of concrete structures made with eggshell powder and coconut shells are replaced in the proportions of the concrete mixture. In the present work, the experimental program was designed to study the properties like strength and workability of concrete by casting the cube of size 150 mm x 150mm x 150 mm and cylinder of size 30 cm height and 15 cm diameter by using M20 grade. This experimental study consists of testing compressive strength of three cubes and split tensile strength of three cylinders of conventional concrete and the comparative cubes and cylinders are made by using different proportions of coconut shells (i.e., 2%, 4%, and 6%) replacement in coarse aggregate and replacement of eggshell powder (i.e., 5%, 10%, and 15%) in place of cement at optimum strength obtained by proportions of coconut shells replaced in coarse aggregate.

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“…Eggshell is another waste available in abundance in Malaysia and is rich in calcium oxide (CaO). Eggshells are considered to be of no practical value; therefore, without any treatment, they are disposed of in the landfills causing significant environmental pollution (Jhatial et al, 2019a;Raji and Samuel, 2015). Interestingly, eggshells powder (ESP) has been used as SCMs, and it was found that replacement of 5% to 7.5% of cement is possible (Wei et al, 2020;Jhatial et al, 2019b;Ujin et al, 2017;Dhanalakshmi et al, 2015;Gowsika et al, 2014;Yerramala, 2014).…”

Section: Introductionmentioning

confidence: 99%

Thermomechanical evaluation of sustainable foamed concrete incorporating palm oil fuel ash and eggshell powder

Jhatial

Goh²,

Mohamad³

et al. 2021

JER is an international, peer-reviewed journal that publishes f

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Increased usage of concrete contributes to urban thermal discomfort due to the Urban Heat Island effect. At the same time, the corresponding increased consumption of cement also causes a significant rise in carbon dioxide (CO2) gas emissions. This experimental work aims at evaluating the thermal and mechanical performance of 1800 kg/m3 dry density green sustainable foamed concrete (GFC) incorporating agroindustrial waste such as Palm Oil Fuel Ash (POFA) and Eggshell Powder (ESP) as supplementary cementitious materials (SCMs). The POFA content varied from 15 to 35%, with increments of 5%, while being supplemented with 5% ESP. To evaluate the performance of the developed GFC, the flowability, mechanical strengths (compressive and splitting tensile strengths), and thermal performances (thermal conductivity and surface temperature) were investigated. Incorporation of 15-25% of POFA supplemented with 5% ESP as partial cement replacement materials resulted in enhanced mechanical strengths. Although usage of POFA can reduce the thermal conductivity, the POFA content must be limited to 15–25% to prevent excessive heat absorption by the exterior surface of the concrete. Overall, the optimum use of 15% POFA in a combination of 5% ESP is desirable to produce an eco-friendly sustainable foamed concrete.

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Green and Sustainable Concrete – The Potential Utilization of Rice Husk Ash and Egg Shells

Cited by 38 publications

References 22 publications

Potential Application of Heat Cured Eggshell Powder and Flyash-Based Geopolymer in Pavement Construction

Potential Application of Heat Cured Eggshell Powder and Flyash-Based Geopolymer in Pavement Construction

Partial Replacement of Cement and Coarse Aggregate by Egg Shell Powder and Coconut Shells

Thermomechanical evaluation of sustainable foamed concrete incorporating palm oil fuel ash and eggshell powder

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