Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 20 of 35 for “"bottom ash"”.
-
Evaluation of the Potential Expansion Mechanisms of Bottom Ash in Unbound Sub-base Materials
… dissertation is to evaluate the potential for bottom ash from the incineration of municipal solid waste to undergo chemical reactions which could lead to expansion when used as an unbound granular fill<br/>This paper sets out the experimental results obtained from testing of the Incinerator …
-
Utilization of coal bottom ash and fine coconut shell as partial sand replacement in concrete
… modern society. Nowadays, huge volumes of coal bottom ash (CBA) are disposed of in coal ash ponds or landfills. On the other hand, the coconut industry is facing disposal problems due to the slow decomposition process of coconut shells which has led to the accumulation of coconut shell piles. …
-
Strength and water permeability of concrete containing coal bottom ash as cement and fine aggregate replacement material
… sustainable concrete construction. However, coal bottom ash (CBA) is the one of the major waste product, generated by coal operated thermal powerplants. Therefore, study aims to utilization of grinded coal bottom ash (GCBA) and ungrinded coal bottom ash (UGCBA) as a cement and fine aggregate …
-
Acoustic and non-acoustic performance of coal bottom ash as sound absorptive material for reducing railway noise level
… areas. Furthermore, the huge production of Coal Bottom Ash (CBA) is treated as waste and often placed into impoundment ponds, silos or landfills, which has contributed to environmental issues. Usage of CBA in concrete production in reducing railway noise pollution reduce the environmental …
-
Strength prediction and durability performance of concrete containing coal bottom ash as supplementary cementitious material under aggressive environment
… performance of concrete containing Coal Bottom Ash (CBA) as a SCM and to develop empirical equation to predict compressive strength of concrete under normal as well as in aggressive environment. CBA was considered as SCM because it is a huge waste that produced by a coal-based power …
-
Synergistic approach for nutrient loss mitigation and waste management using paired modified bottom ash and woodchip bioreactor treatment system
Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2026-12-01
-
Structural behaviour of circular concrete filled steel tube column fill with selfcompacting concrete incorporating coal bottom ash as fine aggregate replacement
… CFST column filled with SCC incorporating coal bottom ash (CBA) as fine aggregate replacement. In this research work, sand was replaced with CBA at 10%, 15%, 20%, 25%, and 30% of replacement levels. Tests for compressive strength, split tensile strength, flexural strength, and water absorption …
-
Determination of Heavy Metal Concentration in Bottom Ash in the Medical Waste Incinerators: The Case Study of Dar es Salaam City
… relatively less consideration has been given to bottom ash. This study focused on determination of heavy metal concentration in bottom ash in medical waste incinerators found in different medical hospitals in Temeke, Ilala and Kinondoni Municipalities, Dar es Salaam. Samples of bottom ash were …
-
Development of High performance Concrete Composites Using Class F Fly Ash and PCC Bottom Ash, and a Statistical Model to Predict Compressive Strength of Similar Concrete Composites
… CONCRETE COMPOSITES USING CLASS F FLY ASH AND PCC BOTTOM ASH, AND A STATISTICAL MODEL TO PREDICT COMPRESSIVE STRENGTH OF SIMILAR CONCRETE COMPOSITES ADVISOR: Dr. Sanjeev Kumar It is a common knowledge that the use of concrete is as old as the evolution of human civilization. People have …
-
Accelerated carbonation of municipal solid waste incineration residues
… but produces solid waste in the form of bottom ash and air pollution control (APC) residues. Landfill is currently the most commonly used disposal option for these ash residues, however, the impact of hazardous compounds in these wastes on the environment during landfilling is becoming …
-
Spalování uhlí jako zdroj kontaminace půd rtutí
… Hg concentration in soils, coal and wastes (fly ash and bottom ash) from power plant Turów was determined by AMA-254. The concentration in the coal ranged between 217-973 µg.kg-1 Hg, the average concentration in fly ash was 94 µg.kg-1 Hg and the lowest concentration of Hg was in the bottom ash, …
-
Characterizing and modeling the hydrologic properties of coal combustion by-products in landfills
… and lead into groundwater. CCBs include fly ash, bottom ash, and flue gas desulfurization product (FGD gypsum). This investigation focused on determination of the saturated and unsaturated hydraulic properties of fly ash and bottom ash to then be used in order to develop a 1-dimensional …
-
Parametric study of heavy metal partitioning in a pilot scale incinerator burning simulated municipal solid waste
… The products of the incineration process are bottom ash, fly ash and the flue gas. Most of the metal-based phases formed in incineration are toxic and their emissions need to be strictly controlled. Therefore, behavior of metal species during incineration must be well understood. Such …
-
Sustainable management of industrial capital: LCA and spatial analysis in decision making for beneficial use of industrial by -products
… first study found the use of bottom ash in place of crushed rock, on a regional scale, would result in a reduced energy and water consumption, reduced air emissions, reduced mercury and lead emissions and a reduced non-cancer human toxicity potential (HTP), but an increased HTP …
-
Arsenic and Selenium Distribution in Coal-Fired Plant Samples
… selenium concentrations in samples of coal, fly ash, bottom ash, economizer ash, Flue Gas Desulfurization (FGD) slurry and flue gas taken from four power plants with the goal being to examine the distribution of these metals in these materials and calculate a materials balance for the system. All …
-
Water absorption and salt attack resistance of coal ash brick made of different percentage of foam content
Coal ash which constitute of fly ash and bottom ash were proved to be used as main component in brick production. However, published work on the coal ash brick with addition of foam in order to produce lightweight brick is still lacking. This thesis reports the effect of variation in foam content …
-
Relationship between decomposition level and induced solidification of peat based on laboratory investigation
… using ordinary portland cement (OPC) and coal ash (fly ash, FA and bottom ash, BA). Different decomposition levels of peat require different amounts of filler and binder to achieve the optimum strength. The peats are categorized as fabric for the less decomposed peat, hemic for the moderately …
-
Mineralogy and geochemistry of the carbonaceous mudstones and coal petrogenesis of the Grootgeluk formation in the Waterberg coalfield, South Africa
… and coal-burning in a local power-station (fly ash and bottom ash). The lower portion of the Grootegeluk Formation is dominated by kaolinite, quartz and minor amounts of anatase, and the upper parts of by quartz, kaolinite and minor amounts of montmorillonite-illite and microcline. These …
-
Sustainable Material Solution for Flexible Pavements; Performance Evaluation and Impact Assessment of Utilizing Multiple Recycled Materials in HMA
… (RAS), Municipal Solid Waste Incineration (MSWI) Bottom Ash, and Recycled Concrete Aggregate (RCA). Performance evaluation of the HMA including those recycled materials has been performed by a series of laboratory experimental tests while the environmental impact was investigated by the Life Cycle …
-
Fly Ash as a Soil Amendment in the Northern Red River Valley
… During coal combustion, byproducts including fly ash, bottom ash and slag are formed (Lafarge, 2004). By standard regulations, power plants in the United States and many other countries must effectively capture and dispose of these byproducts. Over 118 million tons of combustion byproducts are …
Page 1 of 2