Engineering characteristics of kaolin mixed with various percentages of bottom ash

Mohammad Ehsan Jorat, Aminaton Marto, Eshagh Namazi, Mohd For Mohd Amin

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

Coal is one of the world’s most important sources of energy, fuelling almost 40% of electricity worldwide. The burning of coal produces coal ash that mostly consists of fly ash and bottom ash. Bottom ash (normally recognized as coal combustion residues) has been categorized as solid waste (garbage). However, the utilization of bottom ash in construction-related applications has received some attention within the last decade. This paper presents the engineering characteristics of kaolin, mixed with 25%, 50% and 60% of bottom ash. Kaolin, in powdered forms, was mixed with bottom ash and compacted at optimum moisture content. By adding bottom ash to kaolin, lower specific gravity, higher permeability and relatively speed of consolidation would be increased to a great amount to the mixture would be achieved. It was found that the granular texture of bottom ash increased the friction angle and decreased the cohesion of kaolin. The addition of 25% bottom ash leads to the highest shear strength among mixtures. This can be attributed to its granular nature which renders an increase in frictional of the mixtures. The California Bearing Ratio (CBR) test shows that the most economical mixture that gives the highest value of penetration resistance and CBR is kaolin to bottom ash ratio of 50% : 50%. It appears that the bottom ash could be suitable for various uses in civil constructions depending on the requirements of applications.
Original languageEnglish
Pages (from-to)841-850
Number of pages10
JournalElectronic Journal of Geotechnical Engineering
Volume16
Issue numberH
Publication statusPublished - 2011
Externally publishedYes

Fingerprint

Ashes
bottom ash
Kaolin
kaolin
Coal ash
engineering
Bearings (structural)
coal
Coal
Waste utilization
Fueling
Coal combustion
Solid wastes
Fly ash
Shear strength
Density (specific gravity)
Consolidation

Cite this

Jorat, Mohammad Ehsan ; Marto, Aminaton ; Namazi, Eshagh ; Amin, Mohd For Mohd. / Engineering characteristics of kaolin mixed with various percentages of bottom ash. In: Electronic Journal of Geotechnical Engineering. 2011 ; Vol. 16, No. H. pp. 841-850.
@article{36b2c862305d4ef89a8851d4089a02fd,
title = "Engineering characteristics of kaolin mixed with various percentages of bottom ash",
abstract = "Coal is one of the world’s most important sources of energy, fuelling almost 40{\%} of electricity worldwide. The burning of coal produces coal ash that mostly consists of fly ash and bottom ash. Bottom ash (normally recognized as coal combustion residues) has been categorized as solid waste (garbage). However, the utilization of bottom ash in construction-related applications has received some attention within the last decade. This paper presents the engineering characteristics of kaolin, mixed with 25{\%}, 50{\%} and 60{\%} of bottom ash. Kaolin, in powdered forms, was mixed with bottom ash and compacted at optimum moisture content. By adding bottom ash to kaolin, lower specific gravity, higher permeability and relatively speed of consolidation would be increased to a great amount to the mixture would be achieved. It was found that the granular texture of bottom ash increased the friction angle and decreased the cohesion of kaolin. The addition of 25{\%} bottom ash leads to the highest shear strength among mixtures. This can be attributed to its granular nature which renders an increase in frictional of the mixtures. The California Bearing Ratio (CBR) test shows that the most economical mixture that gives the highest value of penetration resistance and CBR is kaolin to bottom ash ratio of 50{\%} : 50{\%}. It appears that the bottom ash could be suitable for various uses in civil constructions depending on the requirements of applications.",
author = "Jorat, {Mohammad Ehsan} and Aminaton Marto and Eshagh Namazi and Amin, {Mohd For Mohd}",
year = "2011",
language = "English",
volume = "16",
pages = "841--850",
journal = "Electronic Journal of Geotechnical Engineering",
issn = "1089-3032",
publisher = "Oklahoma State University",
number = "H",

}

Engineering characteristics of kaolin mixed with various percentages of bottom ash. / Jorat, Mohammad Ehsan; Marto, Aminaton ; Namazi, Eshagh; Amin, Mohd For Mohd.

In: Electronic Journal of Geotechnical Engineering, Vol. 16, No. H, 2011, p. 841-850.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Engineering characteristics of kaolin mixed with various percentages of bottom ash

AU - Jorat, Mohammad Ehsan

AU - Marto, Aminaton

AU - Namazi, Eshagh

AU - Amin, Mohd For Mohd

PY - 2011

Y1 - 2011

N2 - Coal is one of the world’s most important sources of energy, fuelling almost 40% of electricity worldwide. The burning of coal produces coal ash that mostly consists of fly ash and bottom ash. Bottom ash (normally recognized as coal combustion residues) has been categorized as solid waste (garbage). However, the utilization of bottom ash in construction-related applications has received some attention within the last decade. This paper presents the engineering characteristics of kaolin, mixed with 25%, 50% and 60% of bottom ash. Kaolin, in powdered forms, was mixed with bottom ash and compacted at optimum moisture content. By adding bottom ash to kaolin, lower specific gravity, higher permeability and relatively speed of consolidation would be increased to a great amount to the mixture would be achieved. It was found that the granular texture of bottom ash increased the friction angle and decreased the cohesion of kaolin. The addition of 25% bottom ash leads to the highest shear strength among mixtures. This can be attributed to its granular nature which renders an increase in frictional of the mixtures. The California Bearing Ratio (CBR) test shows that the most economical mixture that gives the highest value of penetration resistance and CBR is kaolin to bottom ash ratio of 50% : 50%. It appears that the bottom ash could be suitable for various uses in civil constructions depending on the requirements of applications.

AB - Coal is one of the world’s most important sources of energy, fuelling almost 40% of electricity worldwide. The burning of coal produces coal ash that mostly consists of fly ash and bottom ash. Bottom ash (normally recognized as coal combustion residues) has been categorized as solid waste (garbage). However, the utilization of bottom ash in construction-related applications has received some attention within the last decade. This paper presents the engineering characteristics of kaolin, mixed with 25%, 50% and 60% of bottom ash. Kaolin, in powdered forms, was mixed with bottom ash and compacted at optimum moisture content. By adding bottom ash to kaolin, lower specific gravity, higher permeability and relatively speed of consolidation would be increased to a great amount to the mixture would be achieved. It was found that the granular texture of bottom ash increased the friction angle and decreased the cohesion of kaolin. The addition of 25% bottom ash leads to the highest shear strength among mixtures. This can be attributed to its granular nature which renders an increase in frictional of the mixtures. The California Bearing Ratio (CBR) test shows that the most economical mixture that gives the highest value of penetration resistance and CBR is kaolin to bottom ash ratio of 50% : 50%. It appears that the bottom ash could be suitable for various uses in civil constructions depending on the requirements of applications.

M3 - Article

VL - 16

SP - 841

EP - 850

JO - Electronic Journal of Geotechnical Engineering

JF - Electronic Journal of Geotechnical Engineering

SN - 1089-3032

IS - H

ER -