Morphological and strength properties of Tanjung Bin coal ash mixtures for applied in geotechnical engineering work
In Malaysia, coal has been used as a raw material to generate electricity since 1988. In the past, most of the wastage of coal burning especially the bottom ash was not managed properly as it was dumped in the waste pond and accumulated drastically.This paper focuses on some properties of coal ash m...
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| Format: | Article |
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Indonesian Society for Knowledge and Human Development
2012
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| _version_ | 1796856819308560384 |
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| author | Awang, Abd. Rahim Marto, Aminaton Makhtar, Ahmad Maher |
| author_facet | Awang, Abd. Rahim Marto, Aminaton Makhtar, Ahmad Maher |
| author_sort | Awang, Abd. Rahim |
| collection | ePrints |
| description | In Malaysia, coal has been used as a raw material to generate electricity since 1988. In the past, most of the wastage of coal burning especially the bottom ash was not managed properly as it was dumped in the waste pond and accumulated drastically.This paper focuses on some properties of coal ash mixtures (fly ash and bottom ash mixtures) from Tanjung Bin power plant. The characteristics studied were morphological properties, compaction behaviour and strength properties. Strength properties of coal ash mixtures are carried out by conducting direct shear test and unconfined compression test. Besides, morphology and mineralogy of coal ash mixtures are studied using scanning electron microscope (SEM) and x-ray diffraction (XRD). The coal ash mixtures were compacted at 95% of maximum dry density, sealed and cured for 0, 14, and 28 days before they were analysed for shear strength, morphological and mineralogical analyses. The shear strength of coal ash mixtures varied depending on the fly ash compositions. The maximum shear strength was obtained at mixture with 50%FA: 50%BA and the value increased with curing periods. The friction angle obtained ranged from 270 to 370. Morphological analysis showed that the number of irregular shaped particles increased confirming change in material type with curing period. From mineralogical analysis, the crystalline compounds present in Tanjung Bin coal ash were Mullite, Quartz, Calcium Phosphide, Calcite, Cristobalite and Hematite. It can be concluded that the coal ash mixtures can advantageously be applied in the construction of embankments, roads, reclamation and fill behind retaining structures. |
| first_indexed | 2024-03-05T18:48:47Z |
| format | Article |
| id | utm.eprints-31090 |
| institution | Universiti Teknologi Malaysia - ePrints |
| last_indexed | 2024-03-05T18:48:47Z |
| publishDate | 2012 |
| publisher | Indonesian Society for Knowledge and Human Development |
| record_format | dspace |
| spelling | utm.eprints-310902019-03-25T08:08:17Z http://eprints.utm.my/31090/ Morphological and strength properties of Tanjung Bin coal ash mixtures for applied in geotechnical engineering work Awang, Abd. Rahim Marto, Aminaton Makhtar, Ahmad Maher TA Engineering (General). Civil engineering (General) In Malaysia, coal has been used as a raw material to generate electricity since 1988. In the past, most of the wastage of coal burning especially the bottom ash was not managed properly as it was dumped in the waste pond and accumulated drastically.This paper focuses on some properties of coal ash mixtures (fly ash and bottom ash mixtures) from Tanjung Bin power plant. The characteristics studied were morphological properties, compaction behaviour and strength properties. Strength properties of coal ash mixtures are carried out by conducting direct shear test and unconfined compression test. Besides, morphology and mineralogy of coal ash mixtures are studied using scanning electron microscope (SEM) and x-ray diffraction (XRD). The coal ash mixtures were compacted at 95% of maximum dry density, sealed and cured for 0, 14, and 28 days before they were analysed for shear strength, morphological and mineralogical analyses. The shear strength of coal ash mixtures varied depending on the fly ash compositions. The maximum shear strength was obtained at mixture with 50%FA: 50%BA and the value increased with curing periods. The friction angle obtained ranged from 270 to 370. Morphological analysis showed that the number of irregular shaped particles increased confirming change in material type with curing period. From mineralogical analysis, the crystalline compounds present in Tanjung Bin coal ash were Mullite, Quartz, Calcium Phosphide, Calcite, Cristobalite and Hematite. It can be concluded that the coal ash mixtures can advantageously be applied in the construction of embankments, roads, reclamation and fill behind retaining structures. Indonesian Society for Knowledge and Human Development 2012 Article PeerReviewed Awang, Abd. Rahim and Marto, Aminaton and Makhtar, Ahmad Maher (2012) Morphological and strength properties of Tanjung Bin coal ash mixtures for applied in geotechnical engineering work. Int. Journal on Advanced Science, Engineering & Information Technology, 2 (2). pp. 55-62. ISSN 2088-5334 http://dx.doi.org/10.18517/ijaseit.2.2.178 DOI:10.18517/ijaseit.2.2.178 |
| spellingShingle | TA Engineering (General). Civil engineering (General) Awang, Abd. Rahim Marto, Aminaton Makhtar, Ahmad Maher Morphological and strength properties of Tanjung Bin coal ash mixtures for applied in geotechnical engineering work |
| title | Morphological and strength properties of Tanjung Bin coal ash mixtures for applied in geotechnical engineering work |
| title_full | Morphological and strength properties of Tanjung Bin coal ash mixtures for applied in geotechnical engineering work |
| title_fullStr | Morphological and strength properties of Tanjung Bin coal ash mixtures for applied in geotechnical engineering work |
| title_full_unstemmed | Morphological and strength properties of Tanjung Bin coal ash mixtures for applied in geotechnical engineering work |
| title_short | Morphological and strength properties of Tanjung Bin coal ash mixtures for applied in geotechnical engineering work |
| title_sort | morphological and strength properties of tanjung bin coal ash mixtures for applied in geotechnical engineering work |
| topic | TA Engineering (General). Civil engineering (General) |
| work_keys_str_mv | AT awangabdrahim morphologicalandstrengthpropertiesoftanjungbincoalashmixturesforappliedingeotechnicalengineeringwork AT martoaminaton morphologicalandstrengthpropertiesoftanjungbincoalashmixturesforappliedingeotechnicalengineeringwork AT makhtarahmadmaher morphologicalandstrengthpropertiesoftanjungbincoalashmixturesforappliedingeotechnicalengineeringwork |