An Evaluation of the Physical and Chemical Stability of Dry Bottom Ash as a Concrete Light Weight Aggregate
Compared to the bottom ash obtained by a water-cooling system (wBA), dry process bottom ash (dBA) makes hardly any unburnt carbon because of its stay time at the bottom of the boiler and contains less chloride because there is no contact with seawater. Accordingly, to identify the chemical stability...
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| creator | Kim, Jinman Kim, Haseog Shin, Sangchul |
| description | Compared to the bottom ash obtained by a water-cooling system (wBA), dry process bottom ash (dBA) makes hardly any unburnt carbon because of its stay time at the bottom of the boiler and contains less chloride because there is no contact with seawater. Accordingly, to identify the chemical stability of dBA as a lightweight aggregate for construction purposes, the chemical properties of dBA were evaluated through the following process of the reviewing engineering properties of a lightweight aggregate (LWA). Typically, river gravel and crushed gravel have been used as coarse aggregates due to their physical and chemical stability. The coal ash and LWA, however, have a variety of chemical compositions, and they have specific chemical properties including SO3, unburnt coal and heavy metal content. As the minimum requirement to use the coal ash and lightweight aggregate with various chemical properties for concrete aggregate, the loss on ignition, the SO3 content and the amount of chloride should be examined, and it is also necessary to examine heavy metal leaching even though it is not included in the standard specifications in Korea. Based on the results, it is believed that there are no significant physical and chemical problems using dBA as a lightweight aggregate for concrete. |
| doi_str_mv | 10.3390/ma14185291 |
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Accordingly, to identify the chemical stability of dBA as a lightweight aggregate for construction purposes, the chemical properties of dBA were evaluated through the following process of the reviewing engineering properties of a lightweight aggregate (LWA). Typically, river gravel and crushed gravel have been used as coarse aggregates due to their physical and chemical stability. The coal ash and LWA, however, have a variety of chemical compositions, and they have specific chemical properties including SO3, unburnt coal and heavy metal content. As the minimum requirement to use the coal ash and lightweight aggregate with various chemical properties for concrete aggregate, the loss on ignition, the SO3 content and the amount of chloride should be examined, and it is also necessary to examine heavy metal leaching even though it is not included in the standard specifications in Korea. Based on the results, it is believed that there are no significant physical and chemical problems using dBA as a lightweight aggregate for concrete.</description><identifier>ISSN: 1996-1944</identifier><identifier>EISSN: 1996-1944</identifier><identifier>DOI: 10.3390/ma14185291</identifier><identifier>PMID: 34576514</identifier><language>eng</language><publisher>Basel: MDPI AG</publisher><subject>Aggregates ; Bottom ash ; Carbon ; Chemical composition ; Chemical properties ; Chlorides ; Coal ; Concrete aggregates ; Cooling systems ; Corrosion resistance ; Environmental impact ; Evaluation ; Fly ash ; Gravel ; Heavy metals ; Leaching ; Lightweight ; Particle size ; Physical properties ; Power plants ; Recycling ; Seawater ; Stability analysis ; Sulfur trioxide ; Test methods ; Weight reduction</subject><ispartof>Materials, 2021-09, Vol.14 (18), p.5291</ispartof><rights>2021 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). 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Based on the results, it is believed that there are no significant physical and chemical problems using dBA as a lightweight aggregate for concrete.</description><subject>Aggregates</subject><subject>Bottom ash</subject><subject>Carbon</subject><subject>Chemical composition</subject><subject>Chemical properties</subject><subject>Chlorides</subject><subject>Coal</subject><subject>Concrete aggregates</subject><subject>Cooling systems</subject><subject>Corrosion resistance</subject><subject>Environmental impact</subject><subject>Evaluation</subject><subject>Fly ash</subject><subject>Gravel</subject><subject>Heavy metals</subject><subject>Leaching</subject><subject>Lightweight</subject><subject>Particle size</subject><subject>Physical properties</subject><subject>Power plants</subject><subject>Recycling</subject><subject>Seawater</subject><subject>Stability analysis</subject><subject>Sulfur trioxide</subject><subject>Test methods</subject><subject>Weight reduction</subject><issn>1996-1944</issn><issn>1996-1944</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2021</creationdate><recordtype>article</recordtype><sourceid>BENPR</sourceid><recordid>eNpdkUtr3DAQx0VoSUK6l3wCQS4lsKlkPSxdCpvNq7CQQBtyFGOtbCu1rVSSA_vt492ENulcZob5zZ95IHRMyRljmnzrgXKqRKHpHjqkWss51Zx_ehcfoFlKj2Qyxqgq9D46YFyUUlB-iH4vBnz5DN0I2YcBhxrn1uG7dpO8hQ7DsMbL1vW75GeGync-b7bYRdzg85Bz6PEitRgSBrwMg40uO7zyTZvxg9u5RdNE10B2X9DnGrrkZm_-CN1fXf5a3sxXt9c_lovV3DLF8hwc4TVQkIxaThhha81dRahUlpICOKsLSYQiZb1WpZJWVJZoSYWua6hgajtC3191n8aqd2vrhhyhM0_R9xA3JoA3HyuDb00Tno3icpJVk8DXN4EY_owuZdP7ZF3XweDCmEwhypILorme0JP_0McwxmFab0tJLqabi4k6faVsDClFV_8dhhKzfaP590b2Ai8CjTA</recordid><startdate>20210914</startdate><enddate>20210914</enddate><creator>Kim, Jinman</creator><creator>Kim, Haseog</creator><creator>Shin, Sangchul</creator><general>MDPI AG</general><general>MDPI</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>8FD</scope><scope>8FE</scope><scope>8FG</scope><scope>ABJCF</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>AZQEC</scope><scope>BENPR</scope><scope>BGLVJ</scope><scope>CCPQU</scope><scope>D1I</scope><scope>DWQXO</scope><scope>HCIFZ</scope><scope>JG9</scope><scope>KB.</scope><scope>PDBOC</scope><scope>PIMPY</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope><scope>7X8</scope><scope>5PM</scope><orcidid>https://orcid.org/0000-0003-4017-6636</orcidid></search><sort><creationdate>20210914</creationdate><title>An Evaluation of the Physical and Chemical Stability of Dry Bottom Ash as a Concrete Light Weight Aggregate</title><author>Kim, Jinman ; Kim, Haseog ; Shin, Sangchul</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c383t-ae04fa1a631c40303d94eb0168c102a43f2605807fd8786c5bc096159ffabaa63</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2021</creationdate><topic>Aggregates</topic><topic>Bottom ash</topic><topic>Carbon</topic><topic>Chemical composition</topic><topic>Chemical properties</topic><topic>Chlorides</topic><topic>Coal</topic><topic>Concrete aggregates</topic><topic>Cooling systems</topic><topic>Corrosion resistance</topic><topic>Environmental impact</topic><topic>Evaluation</topic><topic>Fly ash</topic><topic>Gravel</topic><topic>Heavy metals</topic><topic>Leaching</topic><topic>Lightweight</topic><topic>Particle size</topic><topic>Physical properties</topic><topic>Power plants</topic><topic>Recycling</topic><topic>Seawater</topic><topic>Stability analysis</topic><topic>Sulfur trioxide</topic><topic>Test methods</topic><topic>Weight reduction</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Kim, Jinman</creatorcontrib><creatorcontrib>Kim, Haseog</creatorcontrib><creatorcontrib>Shin, Sangchul</creatorcontrib><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>Technology Research Database</collection><collection>ProQuest SciTech Collection</collection><collection>ProQuest Technology Collection</collection><collection>Materials Science & Engineering Collection</collection><collection>ProQuest Central (Alumni Edition)</collection><collection>ProQuest Central UK/Ireland</collection><collection>ProQuest Central Essentials</collection><collection>ProQuest Central</collection><collection>Technology Collection</collection><collection>ProQuest One Community College</collection><collection>ProQuest Materials Science Collection</collection><collection>ProQuest Central Korea</collection><collection>SciTech Premium Collection</collection><collection>Materials Research Database</collection><collection>Materials Science Database</collection><collection>Materials Science Collection</collection><collection>Publicly Available Content Database</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>ProQuest Central China</collection><collection>MEDLINE - Academic</collection><collection>PubMed Central (Full Participant titles)</collection><jtitle>Materials</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Kim, Jinman</au><au>Kim, Haseog</au><au>Shin, Sangchul</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>An Evaluation of the Physical and Chemical Stability of Dry Bottom Ash as a Concrete Light Weight Aggregate</atitle><jtitle>Materials</jtitle><date>2021-09-14</date><risdate>2021</risdate><volume>14</volume><issue>18</issue><spage>5291</spage><pages>5291-</pages><issn>1996-1944</issn><eissn>1996-1944</eissn><abstract>Compared to the bottom ash obtained by a water-cooling system (wBA), dry process bottom ash (dBA) makes hardly any unburnt carbon because of its stay time at the bottom of the boiler and contains less chloride because there is no contact with seawater. Accordingly, to identify the chemical stability of dBA as a lightweight aggregate for construction purposes, the chemical properties of dBA were evaluated through the following process of the reviewing engineering properties of a lightweight aggregate (LWA). Typically, river gravel and crushed gravel have been used as coarse aggregates due to their physical and chemical stability. The coal ash and LWA, however, have a variety of chemical compositions, and they have specific chemical properties including SO3, unburnt coal and heavy metal content. As the minimum requirement to use the coal ash and lightweight aggregate with various chemical properties for concrete aggregate, the loss on ignition, the SO3 content and the amount of chloride should be examined, and it is also necessary to examine heavy metal leaching even though it is not included in the standard specifications in Korea. 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| subjects | Aggregates Bottom ash Carbon Chemical composition Chemical properties Chlorides Coal Concrete aggregates Cooling systems Corrosion resistance Environmental impact Evaluation Fly ash Gravel Heavy metals Leaching Lightweight Particle size Physical properties Power plants Recycling Seawater Stability analysis Sulfur trioxide Test methods Weight reduction |
| title | An Evaluation of the Physical and Chemical Stability of Dry Bottom Ash as a Concrete Light Weight Aggregate |
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