Stabilization of Expansive Soil Using Biomedical Waste Incinerator Ash

Belete, Tseganeh, Asefachew; Geberegziabher, Henok Fikre; Chala, Ayele Tesema

doi:10.30564/jmser.v4i2.3707

Cited by 3 publications

(2 citation statements)

References 17 publications

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“…e addition of chemical or cementitious chemicals can help to stabilize these expansive soils [4]. Fly ash, cement, lime, bagasse ash, medical waste ash [5], and patented chemical stabilizers are examples of additives that range from waste products to manufactured components. Cement stabilization, according to [4], is an effective solution to the problem of fatigue failures produced by recurrent excessive deflection of asphalt surfaces in the presence of a weak subgrade in the pavement structure.…”

Section: Introductionmentioning

confidence: 99%

Prediction of Subgrade Strength from Index Properties of Expansive Soil Stabilized with Bagasse Ash and Calcined Termite Clay Powder Using Artificial Neural Network and Regression

Belete

Quezon

2022

Advances in Civil Engineering

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When moisture levels fluctuate, expansive soils lose a large amount of volume. During the rainy and dry seasons, this type of soil expands and contracts, respectively. As a result, such problematic soils should be avoided or appropriately managed when encountered as subgrade materials. The strength of the subgrade is measured in terms of its California Bearing Ratio (CBR) value which is tiresome, uneconomical, and time-consuming to determine in the laboratory. In the present study, the effect of bagasse ash (BA) and calcined termite clay powder (CTCP) on the strength, index, and microstructural properties of expansive soil was investigated. Laboratory tests such as Atterberg’s limits, particle size analysis, moisture-density relationship, and CBR tests were performed on the highly expansive soil and blended with 3%, 5%, 7%, 9%, and 11% bagasse ash (BA), and 5%, 10%, 15%, 20%, and 25% CTCP separately and in combination. In addition, the microstructural properties of the raw highly expansive soil and the soil stabilized with the optimum BA-CTCP combination were analyzed using the Scanning Electron Microscopy (SEM) machine. Soaked CBR prediction models were also developed using multiple linear regression (MLR) and artificial neural networks (ANNs) from the BA fraction (BAF), CTCP fraction (CTCPF), liquid limit (LL), plasticity index (PI), optimum moisture content (OMC), and maximum dry density (MDD). The soil understudy was very weak having a CBR value of 2.2% and a group index (GI) of 64.37 (reported as 20) and highly expansive with a PI of 51.61% and LL of 104.32%. The addition of both BA and CTCP separately and in combination had resulted in the reduction of PI and increased the strength of the soil under study. As compared with the individual effect, the combined effect of BA and CTCP was quite significant. The optimum BA and CTCP combination was determined from the free-swell index test result; a 72.5% reduction was observed when it was blended with a combination of 9% BA and 20% CTCP. Thus, 9% BA and 20% CTCP compositions could be the optimum percentage combination to stabilize the highly expansive soil under study. The PI was decreased by 85.75%, and the CBR became 5.5 times greater when it was stabilized with 11% BA + 25% CTCP. The SEM micrographs showed that the morphology and fabric of the control specimen (raw soil) were significantly changed when the soil was stabilized with the optimum BA-CTCP combination (9% BA + 20% CTCP). The MLR prediction model was shown to be less efficient and accurate than the ANN model.

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Section: Introductionmentioning

confidence: 99%

Prediction of Subgrade Strength from Index Properties of Expansive Soil Stabilized with Bagasse Ash and Calcined Termite Clay Powder Using Artificial Neural Network and Regression

Belete

Quezon

2022

Advances in Civil Engineering

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“…In addition, lowcost agro-industrial wastes such as biomass, rice-corn husks, organic hulls, and quarry dust have been effectively used to mitigate the engineering properties of problematic soils (Yalley andAsiedu 2013, Jha andOnyelowe and Duc 2020;Thirukumaran et al 2023). Other researchers used wastes such as coconut, leather, lime, and biomedical wastes; coffee husk, and mango seeds to improve the geotechnical properties of expansive soils (Jayasree et al 2015;Atahu et al 2019;Varaprasad et al 2020;Galvín et al 2021;Parihar and Gupta 2021;Singh and Gupta 2021;Tseganeh et al 2021;Tamiru 2023).…”

Section: Introductionmentioning

confidence: 99%

Pine cone ash stabilization of expansive soils

2024

Global NEST: The International Journal

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<p>The use of appropriate waste materials to stabilize problematic soils, such as expansive soils that are responsible for geotechnical damage, is a common practice in geotechnical engineering. This study presents the use of pulverized ash from the combustion of pine cone (PC) waste as a stabilizing agent to improve the engineering properties of expansive soils. A series of laboratory tests were carried out to examine the effect of different percentages of pine cone ash (PCA) content (3%, 5%, 7%, and 10%) on the Atterberg limits, swelling potential (Sp), linear shrinkage, compressibility, and unconfined compressive strength (qu) of naturally occurring swelling soils and the PC ash-treated soils. The results showed that PC ash contents of 5% and 7% contributed to a significant reduction in the swelling and shrinkage potential and an improvement in the coarsest texture, brittleness behavior, compaction properties, and compressive strength of the treated soils. Conversely, PC ash contents below 3% and above 7% showed minimal changes in the index and engineering properties of the PC ash-treated soils. In particular, the PC ash content of 5% resulted in optimal mitigation of the poor properties of the treated soils. The use of pine cone ash as a stabilizing agent represents a suitable and complementary subgrade soil material for expansive soils on which lightweight structures are built.</p>

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Critical Review on Utilization of Incinerated Biomedical Waste Ash to Improve Physico-Mechanical Properties of Concrete Blocks

Sureshkumar¹,

Kumaraguru²,

Kumar³

et al. 2023

IJARSCT

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Waste generation has increased considerably worldwide in the last few decades. Solid wastes encompass the heterogeneous mass of throwaways from the urban community as well as the homogeneous accumulations of agricultural, industrial and mineral wastes. Waste generated from biomedical activities represents a real problem of living nature and human world. A proper waste management system should be required to dispose hazardous biomedical waste and incineration should be the best available technology to reduce the volume of this hazardous waste. The incineration process destroys pathogens and reduces the waste volume and weight but leaves a solid material called biomedical waste incineration ash as residue which increases the levels of heavy metals, inorganic salts and organic compounds in the environment. Disposal of biomedical waste ash in landfill without proper treatment may cause contamination of groundwater due to leachate as metals are not destroyed during incineration. The limited space and the high cost for land disposal led to the development of recycling technologies and the reuse of ash in different systems. There is a scope of utilization of incinerated biomedical waste ash (IBWA) in the production of concrete.This review of literature research paper is intended to evaluate the feasibility of using biomedical waste ash as partial replacement of cement in concrete

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Stabilization of Expansive Soil Using Biomedical Waste Incinerator Ash

Cited by 3 publications

References 17 publications

Prediction of Subgrade Strength from Index Properties of Expansive Soil Stabilized with Bagasse Ash and Calcined Termite Clay Powder Using Artificial Neural Network and Regression

Prediction of Subgrade Strength from Index Properties of Expansive Soil Stabilized with Bagasse Ash and Calcined Termite Clay Powder Using Artificial Neural Network and Regression

Pine cone ash stabilization of expansive soils

Critical Review on Utilization of Incinerated Biomedical Waste Ash to Improve Physico-Mechanical Properties of Concrete Blocks

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