High-calcium fly ash recovery from wet-stored condition and its properties
Fly ash can undergo changes in its properties during the wet-stored conditions, leading to reactivity variability consequently affecting its potential applications. Evaluation of the material properties is considerably essential. This work reports on an investigation of changes in physical and chemi...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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IOP Publishing
2018-01-01
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| Series: | Materials Research Express |
| Subjects: | |
| Online Access: | https://doi.org/10.1088/2053-1591/aadd2a |
| _version_ | 1797747209677045760 |
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| author | Phattarathicha Tepsri Angkana Chumphu Sorachon Yoriya |
| author_facet | Phattarathicha Tepsri Angkana Chumphu Sorachon Yoriya |
| author_sort | Phattarathicha Tepsri |
| collection | DOAJ |
| description | Fly ash can undergo changes in its properties during the wet-stored conditions, leading to reactivity variability consequently affecting its potential applications. Evaluation of the material properties is considerably essential. This work reports on an investigation of changes in physical and chemical properties of high calcium fly ash after recovering from the wet-stored conditions. Herein the high calcium lignite fly ash with calcium oxide constituent in a range of 20%–30% is the focus of this study. Important characteristics of fly ash have been studied, including physical properties, morphologies, chemical composition, and crystallographic phase transformation. Relation of oxide composition including silica, alumina, ferric oxide, and sulfur trioxide, to wet-storing period has been established to visualize the effect of short-term storage in water on changes in the content of mineral bearing species in fly ash. The strength activity indices of the recovered fly ash samples cured for 7 and 28 days has been presented. The significant amount of free lime and soluble calcium, aluminum, and sulfur-bearing minerals varying with storage times are believed to play their pronounced role governing compressive strength. |
| first_indexed | 2024-03-12T15:47:34Z |
| format | Article |
| id | doaj.art-043eb1035d104443b01cd26f4b29fd6b |
| institution | Directory Open Access Journal |
| issn | 2053-1591 |
| language | English |
| last_indexed | 2024-03-12T15:47:34Z |
| publishDate | 2018-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | Materials Research Express |
| spelling | doaj.art-043eb1035d104443b01cd26f4b29fd6b2023-08-09T15:20:44ZengIOP PublishingMaterials Research Express2053-15912018-01-0151111550610.1088/2053-1591/aadd2aHigh-calcium fly ash recovery from wet-stored condition and its propertiesPhattarathicha Tepsri0Angkana Chumphu1Sorachon Yoriya2https://orcid.org/0000-0002-8890-5407National Metal and Materials Technology Center (MTEC), National Science and Technology Development Agency (NSTDA), 114 Thailand Science Park, Pahonyothin Rd., Khlong 1, Khlong Luang, Pathum Thani 12120, ThailandNational Metal and Materials Technology Center (MTEC), National Science and Technology Development Agency (NSTDA), 114 Thailand Science Park, Pahonyothin Rd., Khlong 1, Khlong Luang, Pathum Thani 12120, ThailandNational Metal and Materials Technology Center (MTEC), National Science and Technology Development Agency (NSTDA), 114 Thailand Science Park, Pahonyothin Rd., Khlong 1, Khlong Luang, Pathum Thani 12120, ThailandFly ash can undergo changes in its properties during the wet-stored conditions, leading to reactivity variability consequently affecting its potential applications. Evaluation of the material properties is considerably essential. This work reports on an investigation of changes in physical and chemical properties of high calcium fly ash after recovering from the wet-stored conditions. Herein the high calcium lignite fly ash with calcium oxide constituent in a range of 20%–30% is the focus of this study. Important characteristics of fly ash have been studied, including physical properties, morphologies, chemical composition, and crystallographic phase transformation. Relation of oxide composition including silica, alumina, ferric oxide, and sulfur trioxide, to wet-storing period has been established to visualize the effect of short-term storage in water on changes in the content of mineral bearing species in fly ash. The strength activity indices of the recovered fly ash samples cured for 7 and 28 days has been presented. The significant amount of free lime and soluble calcium, aluminum, and sulfur-bearing minerals varying with storage times are believed to play their pronounced role governing compressive strength.https://doi.org/10.1088/2053-1591/aadd2afly ashhigh CaOrecoverywet-storedstrength activity indexcement application |
| spellingShingle | Phattarathicha Tepsri Angkana Chumphu Sorachon Yoriya High-calcium fly ash recovery from wet-stored condition and its properties Materials Research Express fly ash high CaO recovery wet-stored strength activity index cement application |
| title | High-calcium fly ash recovery from wet-stored condition and its properties |
| title_full | High-calcium fly ash recovery from wet-stored condition and its properties |
| title_fullStr | High-calcium fly ash recovery from wet-stored condition and its properties |
| title_full_unstemmed | High-calcium fly ash recovery from wet-stored condition and its properties |
| title_short | High-calcium fly ash recovery from wet-stored condition and its properties |
| title_sort | high calcium fly ash recovery from wet stored condition and its properties |
| topic | fly ash high CaO recovery wet-stored strength activity index cement application |
| url | https://doi.org/10.1088/2053-1591/aadd2a |
| work_keys_str_mv | AT phattarathichatepsri highcalciumflyashrecoveryfromwetstoredconditionanditsproperties AT angkanachumphu highcalciumflyashrecoveryfromwetstoredconditionanditsproperties AT sorachonyoriya highcalciumflyashrecoveryfromwetstoredconditionanditsproperties |