Reduction of hazardous incinerated bio-medical waste ash and its environmental strain by utilizing in green concrete

Kumar, A. Suresh; Muthukannan, M.; Devi, R. Kanniga; Arunkumar, K.; Ganesh, A. Chithambar

doi:10.2166/wst.2021.239

Cited by 24 publications

(9 citation statements)

References 55 publications

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“…As a result, utilising SCM as a partial or alternative to cement can lower the amount of cement used in the production of concrete and lower environmental pollution [6][7][8][9]. SCM comes in a variety of forms, including Ultra-fine Palm Oil Fuel Ash (UPOFA) [10], Waste Bottom Ash (WBA) [11], Calcined Clay [12], Rice Husk Ash (RHA) [13], Metakaolin [14], Fly Ash (FA) [15], Limestone Powder (LP) [16], Ground Granulated Blast furnace Slag (GGBS) [17], Glass Powder (GP) [18,19], Bio-Medical Waste Ash (BWA) [20][21][22][23][24], Waste Wood Ash (WWA) [25][26][27] and E-Waste [28,29]. The waste materials released from factories and industry is processed to produce the SCM.…”

Section: Introductionmentioning

confidence: 99%

Improving the Mechanical Properties of High-Performance Concrete using Alccofine and Glass Powder

Kumar,

Arunkumar

et al. 2024

E3S Web of Conf.

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The CO2 emissions from cement have had significant negative consequences on the environment, necessitating the substitution of cement in the production of concrete. This research tends to cover the mechanical characteristics and microstructural studies of concrete formed by replacing some of the cement with Alccofine (AL) by percentages of 5%, 10%, 15%, 20%, 25% and 30% and some of fine aggregate with Glass Powder (GP) by percentages of 10%, 20%, 30%, 40% and 50% in the concrete of the M40 grade. A pozzolanic substance called alccofine and high silica content material called glass powder was extensively utilized in the building industry. When the mechanical properties of concrete were tested at various time periods, the optimal partial cement and fine aggregate substitution was determined to be 20% Alccofine and 50% of Glass Powder. When compared to conventional concrete of the same ratio, the compressive strength of the concrete has been enhanced at 20 percent replacement of AL and 50 percent replacement of GP. Moreover, concrete was subjected to a microstructural examination to observe the hydration process at various time intervals, and the results clearly demonstrated how pores and C-S-H (calcium-silicate hydrate) gel are created in both early ages and later ages. According to the study's findings, cement may be replaced in part without impairing its properties and can help lessen the impact of CO2 on the environment.

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Section: Introductionmentioning

confidence: 99%

Improving the Mechanical Properties of High-Performance Concrete using Alccofine and Glass Powder

Kumar,

Arunkumar

et al. 2024

E3S Web of Conf.

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“…A classic two-step mixing process involves first mixing the solid precursor with an activator solution prepared by dissolve an alkaline activator in the water. However, recent studies [8][9][10] have reduced the hazards associated with high alkali concentration and streamlined production by adopting a one-part geopolymer mixing process. Mineral sources such as metakaolin and calcined clays, industrial wastes like fly ash and blast furnace slag, and agricultural byproducts can also provide solid precursors [11,12].…”

Section: Introductionmentioning

confidence: 99%

“…After 28 days at ambient temperature, the resultant concrete demonstrated a compressive strength of 60 MPa [14]. Studies using ash from sugarcane straw, biomasses high in potassium, ash from almond shells, and ash from olive stones have shown that agricultural waste can also be used to create alkaline activators [8,15,16]. Examining alternative materials as alkaline activators is a significant field of study for geopolymer concrete researchers.…”

Section: Introductionmentioning

confidence: 99%

Investigation on Feasibility of Utilizing Coffee-Husk Ash as an Alkaline Activator in Geopolymer Concrete

P V,

Kadarkarai,

Thomas

et al. 2024

E3S Web of Conf.

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Cement production is the major source of global warming which induces 7% of total greenhouse gas emissions. Reducing the use of cement in construction industry needs to be adopted by any of the alternates. One of the best alternates to reduce the impact caused by the cement production process is geopolymer concrete which can completely replace the usage of cement. Geopolymer is trending technology which possess numerous advantages than ordinary Portland cement concrete technology. Geopolymer is produced by the mixing of solid precursor and monomer. Most widely used solid precursors are waste industrial byproducts such as fly ash, GGBS, metakaolin etc., and monomers are alkaline activators like sodium hydroxide and Na2SiO3. Meanwhile, the properties of geopolymer concrete are decided by the various parameters such as quantity of aluminosilicate source in precursor, ratio of NaO/SiO2, SiO2/Al2O3, NaOH/NaSiO3, solution to binder ratio, concentration of NaOH etc., The alkaline activators mostly used are chemical activators which is harmful to humans. Hence, there is a need of finding an alternate for chemical activators in the geopolymer concrete. In this proposed methodology, the chemical alkaline activators have been completely replaced by the waste residue product named coffee husk. Coffee husk is a residue produced from the coffee powder production industry. A total of 18.29 MMT of coffee husk ash has been produced every year. Coffee husk has an inbuilt composition of potassium which is one of the alkaline activators. However, the coffee husk ash needs to be calcinated by the use of oven before to use. In this research, an attempt has been made to utilize the Coffee husk ash (CA), as an alkaline activator and efficient activation mechanism of CA will be examined.

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“…Geopolymer is inorganic and is synthesized by the activation of alumina silicate base compounds using alkaline solution 1 – 3 . The base materials are available as a natural source such as kaolinite, metakaolin or industrial effluents such as Ground Granulated Blast Furnace Slag (GGBS), fly ash, high calcium wood ash, rise husk ash, waste glass powder 4 – 10 . Duxson et al 11 reported early strength attainment with the slag-based geopolymer matrix and enhanced durability with the fly ash-based geopolymer concrete (FGC).…”

Section: Introductionmentioning

confidence: 99%

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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Reduction of hazardous incinerated bio-medical waste ash and its environmental strain by utilizing in green concrete

Cited by 24 publications

References 55 publications

Improving the Mechanical Properties of High-Performance Concrete using Alccofine and Glass Powder

Improving the Mechanical Properties of High-Performance Concrete using Alccofine and Glass Powder

Investigation on Feasibility of Utilizing Coffee-Husk Ash as an Alkaline Activator in Geopolymer Concrete

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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