Utilization of Illinois PCC Dry Bottom Ash for Compacted Landfill Barriers

Kumar, Sanjeev; Stewart, James T.

doi:10.1080/713610980

Cited by 25 publications

(5 citation statements)

References 10 publications

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“…Because of the low content of heavy metals in the bottom ash, it can be used as the covering material of the landfill site [100,166,167]. is is one of the main ways to use bottom ash in the United States.…”

Section: Landfill Cover Materialmentioning

confidence: 99%

Physical and Chemical Properties, Pretreatment, and Recycling of Municipal Solid Waste Incineration Fly Ash and Bottom Ash for Highway Engineering: A Literature Review

Tian

Zhang

et al. 2020

Advances in Civil Engineering

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Municipal solid waste incineration (MSWI) has been widely used due to its benefits in reducing waste and recovering energy. However, MSWI fly ash and bottom ash are increasing rapidly, causing harm to human health and the environment. This paper discussed the production process, physical and chemical properties, leaching properties, pretreatment methods, and applications of fly ash and bottom ash. By summarizing the previous literature, it is found that MSWI fly ash and bottom ash have mechanical properties similar to natural aggregate. Many beneficial attempts have been made in cement concrete aggregates, ceramic raw materials, and highway engineering materials. Due to concerns about the leaching of heavy metals in fly ash, its application in highway engineering is limited. The application of bottom ash in asphalt pavement is rare because of the side effect on the performance of asphalt mixture. Considering the solidification effect of cement on heavy metals and the low cost of fly ash and bottom ash, the application in cement-stabilized macadam base has broad application prospects. This is beneficial to reduce the construction cost and promote the process of waste incineration, especially in developing countries.

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Section: Landfill Cover Materialmentioning

confidence: 99%

Physical and Chemical Properties, Pretreatment, and Recycling of Municipal Solid Waste Incineration Fly Ash and Bottom Ash for Highway Engineering: A Literature Review

Tian

Zhang

et al. 2020

Advances in Civil Engineering

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“…The liner materials mainly used are, for example, clay (Rowe et al 1995, Wagner andSchnatmeyer 2002) or geosynthetic clay (Wagner and Schnatmeyer 2002). To conserve natural clay resources, use of various possible alternative materials has been proposed, such as compacted compost (Benson and Othman 1993), coal fly and bottom ash (Nhan et al 1996, Palmer et al 2000, Kumar and Stewart 2003, water treatment sludge (Wang and Tseng 1993), blast furnace dust (Wagner and Schnatmeyer 2002), dredged material (Mohan et al 1997), and bentonite-coated gravel (Roberts and Shimaoka 2008). However, the potential utilization of residues from the steel industry as lining material has been largely neglected, although the hydraulic conductivity of steel slag mixtures may be as low as 10 À11 m s À1 (Herrmann 2006) which is in the range of geosynthetic clay liners having a hydraulic conductivity of <5 Â 10 À11 m s À1 (Wagner and Schnatmeyer 2002).…”

Section: Introductionmentioning

confidence: 99%

Steel slag used in landfill cover liners: laboratory and field tests

et al. 2010

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Stricter rules for landfilling within the EU have led to the closure of many landfills and a need for large amounts of cover liner materials. Therefore, the potential utilization of mixtures of electric arc furnace slag (EAFS) and ladle slag (LS), which are currently deposited in landfills, as a material for use as landfill liner was investigated. Laboratory analyses showed the mixtures to have similar compression strength to that of high-strength concrete and low hydraulic conductivity (< 10(-11) m s(-1) in some cases). However, both their hydraulic conductivity and compaction properties were strongly affected by the time between adding water to the mixtures and compacting them (tests showed that a delay of 24 h can lead to an increase in hydraulic conductivity, so it should be compacted as soon as possible after mixing the material with water). In addition, the performance of a cover liner constructed using EAFS and LS was studied in a 2-year field trial on a landfill for municipal solid waste, in which the average amount of leachate collected from ten lysimeters was only 27 L m(-2) year(-1), easily meeting Swedish criteria for the permeability of covers on non-hazardous waste landfills (≤ 50 L m(-2) year(-1)). Thus, the material seems to have promising potential for use in barrier constructions.

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“…Recycling and the use of coal ash have drawn a lot of attention in the building industry in order to meet the present concern towards long-term as well as sustainable growth across Europe and to lower overall expenses associated with waste management. As per Kumar and Stewart [16], sand and stone dust have qualities that are almost comparable. As a result, bottom ash may be used in the vertical granular column in place of sand [17][18][19][20].…”

Section: Introductionmentioning

confidence: 72%

Shear Strength of Soft Clay Reinforced With Single Encased Stone Dust Columns

Hoque,

Hasan,

Mim

2023

Jurnal Teknologi

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The application of stone columns, which can improve the overall carrying capacity of soft clay as well as lessen the settlement of buildings built on it, is among the most widespread ground improvement techniques throughout the globe. The performance of foundation beds is enhanced by their stiffness values and higher strength, which could withstand more of the load applied. Therefore, the cost of construction can be decreased by using recycled stone dust as granular material in vertical granular columns, which can then be strengthened with a singular stone dust column that is covered in geotextile for enhancing soft clay’s overall strength. A further unconfined compression test was performed on remolded specimens of soft kaolin clay measuring 50 mm in diameter and 100 mm in height and mounted with a single encapsulated stone dust column measuring 10 mm and 16 mm in diameter. Test results show that when kaolin is implanted with a single encased stone dust column that has an area replacement ratio of 10.24% and penetration ratios of 0.6, 0.8, and 1.0, the shear strength increases are 51.75%, 74.5%, and 49.20%, respectively. The equivalent shear strength increases are 48.50%, 68.50%, and 43.50% for soft soil treated with a 12.00% area replacement ratio and 0.6, 0.8, and 1.0 penetration ratios, respectively. The diameter and height of the column had an impact on the shear strength parameters, which significantly improved for both encased and non-encased stone dust columns.

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Utilization of Illinois PCC Dry Bottom Ash for Compacted Landfill Barriers

Cited by 25 publications

References 10 publications

Physical and Chemical Properties, Pretreatment, and Recycling of Municipal Solid Waste Incineration Fly Ash and Bottom Ash for Highway Engineering: A Literature Review

Physical and Chemical Properties, Pretreatment, and Recycling of Municipal Solid Waste Incineration Fly Ash and Bottom Ash for Highway Engineering: A Literature Review

Steel slag used in landfill cover liners: laboratory and field tests

Shear Strength of Soft Clay Reinforced With Single Encased Stone Dust Columns

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