scholarly journals A Review of the Utilization of Coal Bottom Ash (CBA) in the Construction Industry

2021 ◽  
Vol 13 (14) ◽  
pp. 8031
Author(s):  
Syakirah Afiza Mohammed ◽  
Suhana Koting ◽  
Herda Yati Binti Katman ◽  
Ali Mohammed Babalghaith ◽  
Muhamad Fazly Abdul Patah ◽  
...  
Keyword(s):  
Human Health ◽  
Construction Industry ◽  
Bottom Ash ◽  
High Volume ◽  
Coal Bottom Ash ◽  
Substitute Material ◽  
Physical And Chemical ◽  
Vast Range

One effective method to minimize the increasing cost in the construction industry is by using coal bottom ash waste as a substitute material. The high volume of coal bottom ash waste generated each year and the improper disposal methods have raised a grave pollution concern because of the harmful impact of the waste on the environment and human health. Recycling coal bottom ash is an effective way to reduce the problems associated with its disposal. This paper reviews the current physical and chemical and utilization of coal bottom ash as a substitute material in the construction industry. The main objective of this review is to highlight the potential of recycling bottom ash in the field of civil construction. This review encourages and promotes effective recycling of coal bottom ash and identifies the vast range of coal bottom ash applications in the construction industry.

Properties of high volume coal bottom ash in concrete production

2021 ◽  
Author(s):  
Abdul Muiz Hasim ◽  
Khairul Anuar Shahid ◽  
Nur Farhayu Ariffin ◽  
Nurul Natasha Nasrudin ◽  
Muhamad Nor Syahrul Zaimi
Keyword(s):  
Bottom Ash ◽  
High Volume ◽  
Coal Bottom Ash ◽  
Concrete Production

Tanjung Bin Coal Bottom Ash: From Waste to Concrete Material

2013 ◽  
Vol 705 ◽  
pp. 163-168 ◽  
Author(s):  
Abdulhameed Umar Abubakar ◽  
Khairul Salleh Baharudin
Keyword(s):  
Power Plant ◽  
Economic Value ◽  
Bottom Ash ◽  
Chemical Properties ◽  
Strength Development ◽  
Concrete Material ◽  
Coal Bottom Ash ◽  
Physical And Chemical ◽  
Ash Pond ◽  
And Chemical Properties

Coal Bottom Ash (CBA) is a by-product from the generation of electricity using pulverized coal; Tanjung Bin power plant in Malaysia is a coal-based power plant that generates tonnes of bottom ash daily without known economic value that ends up in the ash pond. Due to the problems associated with the disposal ash pond in terms of cost and environmental impact, attention has now been focused on how best to utilize this waste. This paper present the recent development achieved on the utilization of bottom ash from Tanjung Bin power plant Malaysia in concrete development; physical and chemical properties, workability and fresh concrete properties as well as the strength development of Tanjung Bin bottom ash.

Pozzolanic Reactivity of Coal Bottom Ash after Chemically Pre-Treated with Sulfuric Acid

2019 ◽  
Vol 947 ◽  
pp. 212-216
Author(s):  
Andri Kusbiantoro ◽  
Amalina Hanani ◽  
Rahimah Embong
Keyword(s):  
Construction Industry ◽  
Treatment Process ◽  
Current Trend ◽  
Bottom Ash ◽  
Supplementary Cementitious Materials ◽  
Strength Development ◽  
Coal Bottom Ash ◽  
Cement Replacement ◽  
Pozzolanic Reactivity ◽  
Pre Treatment

Current trend in construction industry has highlighted the use of silica-rich supplementary cementitious materials from industrial wastes in the production of concrete. Numerous studies have validated the pozzolanic properties of these materials, yet coal bottom ash received only infamous reputation as a pozzolanic material, owing to its low reactivity and heavy metals contaminants. Therefore this study was purposed to enhance the pozzolanic reactivity of coal bottom ash through chemical pre-treatment process. Different concentrations of acids and treatment period were studied to obtain optimum parameters for pre-treatment process. Treated ash was characterized for its chemical oxide composition. Its effect on the hydration of cement was studied through the inclusion as cement replacement material in mortar mixtures. From the chemical oxide compositions, a combination of 0.5 M of H2SO4 and 1 hour soaking duration presented the highest SiO2 proportion in the ash. Its inclusion at 5% (by weight of cement) to replace cement proportion in mortar mixtures was able to enhance the compressive strength of mortar at later age, regardless of its slower strength development in the early age. Utilizing treated coal bottom ash as partial cement replacement material has unlocked new achievement for greener future in construction industry.

scholarly journals Evaluation of the properties of coal bottom ash, as regards the possibilities of using it in biological land reclamation

2018 ◽  
Vol 46 ◽  
pp. 00019
Author(s):  
Małgorzata Śliwka ◽  
Waldemar Kępys ◽  
Małgorzata Pawul
Keyword(s):  
Land Reclamation ◽  
Bottom Ash ◽  
Chemical Properties ◽  
Waste Recycling ◽  
Physical And Chemical Properties ◽  
Fluidised Bed ◽  
Coal Bottom Ash ◽  
Power Stations ◽  
Physical And Chemical ◽  
And Chemical Properties

The use of waste in land reclamation projects or road works is a generally applied method of waste recycling since coal bottom ash can be used in plant substrate. This paper presents the results of research on the physical and chemical properties and the toxicity of waste originating from power stations, in the form of coal bottom ash collected from pulverisedfuel and fluidised-bed boilers. To evaluate the eco-toxicological properties of waste, a series of plant growing tests were conducted, with the use of selected plant species, as well as germination tests in water extracts of waste. The latter were intended to determine whether coal bottom ash displayed cytostatic activity, while, in the case of pot experiments, the purpose was to determine the germination rates and growths of both above-ground and underground parts of plants. The test results indicated that the influence of the tested coal bottom ash on the plant development and growth depended on physical and chemical properties of that waste. The reactions of plants were also changing depending on the proportion of waste in soil.

Study on mechanical properties of concrete inclusion of high-volume coal bottom ash with the addition of fly ash

2021 ◽  
Author(s):  
Abdul Muiz Hasim ◽  
Khairul Anuar Shahid ◽  
Nur Farhayu Ariffin ◽  
Nurul Natasha Nasrudin ◽  
Muhammad Nor Syahrul Zaimi
Keyword(s):  
Mechanical Properties ◽  
Fly Ash ◽  
Bottom Ash ◽  
High Volume ◽  
Coal Bottom Ash

scholarly journals PRODUCTION OF 'SAMANTHA' GREENHOUSE ROSES IN ROOT MEDIA AMENDED WITH COAL BOTTOM ASH AND COMPOSTED HARDWOOD BARK

HortScience ◽  
1993 ◽  
Vol 28 (4) ◽  
pp. 255E-255
Author(s):  
Susan H. Butler ◽  
Bradford Bearce
Keyword(s):  
Cover Crop ◽  
Bottom Ash ◽  
Chemical Properties ◽  
Stem Length ◽  
Retention Data ◽  
Flower Bud ◽  
Coal Bottom Ash ◽  
Root Media ◽  
Physical And Chemical ◽  
And Chemical Properties

Rosa × hybrida 'Samantha' plants were planted in pots of three soilless and two soil-containing media. Soilless media consisted of coal bottom ash and composted hardwood bark in 1:1, 2:1, and 3:1 ratios. Soil-containing media were equal parts soil, peat, and coal bottom ash; and a control of equal parts soil, peat, and sand. Half the pots of each media were treated with a cover crop of Hordeum vulgare L. 'Barsoy' to simulate weathering and incorporate additional organic matter prior to planting the roses. Physical and chemical properties of all five original media were examined, and production indices of two harvests were measured; including stem length, flower bud diameter, fresh weight, days to harvest and average number of blooms per plant. Results to date indicate satisfactory growth in all treatments. The three soilless treatments have produced more stems with larger flower bud diameters and shorter days-to-harvest than the soil-containing treatments. However, the fertilization, and electrical conductivity of all treatments remains below normal. Moisture retention data also show the soil-containing treatments to have higher container capacity and easily available water. Cover-cropped plants also had shorter days-to-harvest, but in one of two harvests produced flower buds of smaller diameter.

Mechanism of Cement Paste with Different Particle Sizes of Bottom Ash as Partial Replacement in Portland Cement

2017 ◽  
Vol 68 (10) ◽  
pp. 2367-2372 ◽  
Author(s):  
Ng Hooi Jun ◽  
Mirabela Georgiana Minciuna ◽  
Mohd Mustafa Al Bakri Abdullah ◽  
Tan Soo Jin ◽  
Andrei Victor Sandu ◽  
...  
Keyword(s):  
Portland Cement ◽  
Construction Material ◽  
Bottom Ash ◽  
High Volume ◽  
Cement Composite ◽  
Pozzolanic Reaction ◽  
High Specific Surface Area ◽  
Partial Replacement ◽  
Natural Aggregates ◽  
Pozzolanic Properties

Manufacturing of Portland cement consists of high volume of natural aggregates which depleted rapidly in today construction field. New substitutable material such as bottom ash replace and target for comparable properties with hydraulic or pozzolanic properties as Portland cement. This study investigates the replacement of different sizes of bottom ash into Portland cement by reducing the content of Portland cement and examined the mechanism between bottom ash (BA) and Portland cement. A cement composite developed by 10% replacement with 1, 7, 14, and 28 days of curing and exhibited excellent mechanical strength on day 28 (34.23 MPa) with 63 mm BA. The porous structure of BA results in lower density as the fineness particles size contains high specific surface area and consume high quantity of water. The morphology, mineralogical, and ternary phase analysis showed that pozzolanic reaction of bottom ash does not alter but complements and integrates the cement hydration process which facilitate effectively the potential of bottom ash to act as construction material.

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