Effect of Calcined MgO-rich Byproduct from the Extraction of Li2CO3 on the Performance of Magnesium Phosphate Cement
Magnesium phosphate cement was prepared with an MgO-containing byproduct (EL-MgO) obtained through the ex-traction of Li2CO3 from salt lakes, and was used to replace dead burnt MgO in magnesium phosphate cement (MPC) formulations. The properties of EL-MgO after calcination at various temperatures we...
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| Veröffentlicht in: | Journal of Advanced Concrete Technology 2017/12/28, Vol.15(12), pp.749-759 |
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| container_title | Journal of Advanced Concrete Technology |
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| creator | Chen, Wenhai Wu, Chengyou Yu, Hongfa Chen, Yuanji Zheng, Shuhai |
| description | Magnesium phosphate cement was prepared with an MgO-containing byproduct (EL-MgO) obtained through the ex-traction of Li2CO3 from salt lakes, and was used to replace dead burnt MgO in magnesium phosphate cement (MPC) formulations. The properties of EL-MgO after calcination at various temperatures were investigated. Changes in pH, alternating-current impedance, and hydration-heat-release rate were assessed. Surface area and reactivity decreased while the degree of crystallization increased with increasing calcination temperature, resulting in longer setting times. The compressive strength of MPC prepared with EL-MgO calcined at 1000°C was 53.9 MPa after 1 day, which is high for quick-repair materials. |
| doi_str_mv | 10.3151/jact.15.749 |
| format | Article |
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The properties of EL-MgO after calcination at various temperatures were investigated. Changes in pH, alternating-current impedance, and hydration-heat-release rate were assessed. Surface area and reactivity decreased while the degree of crystallization increased with increasing calcination temperature, resulting in longer setting times. The compressive strength of MPC prepared with EL-MgO calcined at 1000°C was 53.9 MPa after 1 day, which is high for quick-repair materials.</description><identifier>ISSN: 1346-8014</identifier><identifier>EISSN: 1347-3913</identifier><identifier>DOI: 10.3151/jact.15.749</identifier><language>eng</language><publisher>Tokyo: Japan Concrete Institute</publisher><subject>Byproducts ; Compressive strength ; Crystallization ; Formulations ; Lithium carbonate ; Magnesium oxide ; Magnesium phosphate ; Roasting ; Salt lakes</subject><ispartof>Journal of Advanced Concrete Technology, 2017/12/28, Vol.15(12), pp.749-759</ispartof><rights>2017 by Japan Concrete Institute</rights><rights>Copyright Japan Science and Technology Agency 2017</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c484t-91f43f6bedb06cda019d95dcfbad987d443f4f24abf1a08c544f084bfe3993253</citedby><cites>FETCH-LOGICAL-c484t-91f43f6bedb06cda019d95dcfbad987d443f4f24abf1a08c544f084bfe3993253</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,776,780,1877,27901,27902</link.rule.ids></links><search><creatorcontrib>Chen, Wenhai</creatorcontrib><creatorcontrib>Wu, Chengyou</creatorcontrib><creatorcontrib>Yu, Hongfa</creatorcontrib><creatorcontrib>Chen, Yuanji</creatorcontrib><creatorcontrib>Zheng, Shuhai</creatorcontrib><title>Effect of Calcined MgO-rich Byproduct from the Extraction of Li2CO3 on the Performance of Magnesium Phosphate Cement</title><title>Journal of Advanced Concrete Technology</title><addtitle>ACT</addtitle><description>Magnesium phosphate cement was prepared with an MgO-containing byproduct (EL-MgO) obtained through the ex-traction of Li2CO3 from salt lakes, and was used to replace dead burnt MgO in magnesium phosphate cement (MPC) formulations. The properties of EL-MgO after calcination at various temperatures were investigated. Changes in pH, alternating-current impedance, and hydration-heat-release rate were assessed. Surface area and reactivity decreased while the degree of crystallization increased with increasing calcination temperature, resulting in longer setting times. The compressive strength of MPC prepared with EL-MgO calcined at 1000°C was 53.9 MPa after 1 day, which is high for quick-repair materials.</description><subject>Byproducts</subject><subject>Compressive strength</subject><subject>Crystallization</subject><subject>Formulations</subject><subject>Lithium carbonate</subject><subject>Magnesium oxide</subject><subject>Magnesium phosphate</subject><subject>Roasting</subject><subject>Salt lakes</subject><issn>1346-8014</issn><issn>1347-3913</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2017</creationdate><recordtype>article</recordtype><recordid>eNo9kMtOwzAQRSMEEqWw4gcssUQpfqVJVgii8pBatQtYW449bhI1SbEdif49Dq268ljnzIzmRtE9wTNGEvLUSOVnJJmlPL-IJoTxNGY5YZf_9TzOMOHX0Y1zDcYsZWk6ifzCGFAe9QYVcqfqDjRabdexrVWFXg972-shYGP7FvkK0OLX27Ck7ruxZVnTYs1Q-IxsA9b0tpWdghGu5LYDVw8t2lS921fSAyqghc7fRldG7hzcnd5p9P22-Co-4uX6_bN4WcaKZ9zHOTGcmXkJusRzpSUmuc4TrUwpdZ6lmgfKDeWyNETiTCWcG5zx0gDLc0YTNo0ejnPDGT8DOC-afrBdWCkoDQIhNKPBejxayvbOWTBib-tW2oMgWIyxijFWQRIRYg3289FunJdbOLvS-lrt4OwSeuo4E1VJK6BjfxTrgp8</recordid><startdate>20171228</startdate><enddate>20171228</enddate><creator>Chen, Wenhai</creator><creator>Wu, Chengyou</creator><creator>Yu, Hongfa</creator><creator>Chen, Yuanji</creator><creator>Zheng, Shuhai</creator><general>Japan Concrete Institute</general><general>Japan Science and Technology Agency</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7QQ</scope><scope>7SR</scope><scope>8BQ</scope><scope>8FD</scope><scope>FR3</scope><scope>JG9</scope><scope>KR7</scope></search><sort><creationdate>20171228</creationdate><title>Effect of Calcined MgO-rich Byproduct from the Extraction of Li2CO3 on the Performance of Magnesium Phosphate Cement</title><author>Chen, Wenhai ; Wu, Chengyou ; Yu, Hongfa ; Chen, Yuanji ; Zheng, Shuhai</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c484t-91f43f6bedb06cda019d95dcfbad987d443f4f24abf1a08c544f084bfe3993253</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2017</creationdate><topic>Byproducts</topic><topic>Compressive strength</topic><topic>Crystallization</topic><topic>Formulations</topic><topic>Lithium carbonate</topic><topic>Magnesium oxide</topic><topic>Magnesium phosphate</topic><topic>Roasting</topic><topic>Salt lakes</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Chen, Wenhai</creatorcontrib><creatorcontrib>Wu, Chengyou</creatorcontrib><creatorcontrib>Yu, Hongfa</creatorcontrib><creatorcontrib>Chen, Yuanji</creatorcontrib><creatorcontrib>Zheng, Shuhai</creatorcontrib><collection>CrossRef</collection><collection>Ceramic Abstracts</collection><collection>Engineered Materials Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Engineering Research Database</collection><collection>Materials Research Database</collection><collection>Civil Engineering Abstracts</collection><jtitle>Journal of Advanced Concrete Technology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Chen, Wenhai</au><au>Wu, Chengyou</au><au>Yu, Hongfa</au><au>Chen, Yuanji</au><au>Zheng, Shuhai</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Effect of Calcined MgO-rich Byproduct from the Extraction of Li2CO3 on the Performance of Magnesium Phosphate Cement</atitle><jtitle>Journal of Advanced Concrete Technology</jtitle><addtitle>ACT</addtitle><date>2017-12-28</date><risdate>2017</risdate><volume>15</volume><issue>12</issue><spage>749</spage><epage>759</epage><pages>749-759</pages><issn>1346-8014</issn><eissn>1347-3913</eissn><abstract>Magnesium phosphate cement was prepared with an MgO-containing byproduct (EL-MgO) obtained through the ex-traction of Li2CO3 from salt lakes, and was used to replace dead burnt MgO in magnesium phosphate cement (MPC) formulations. 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| subjects | Byproducts Compressive strength Crystallization Formulations Lithium carbonate Magnesium oxide Magnesium phosphate Roasting Salt lakes |
| title | Effect of Calcined MgO-rich Byproduct from the Extraction of Li2CO3 on the Performance of Magnesium Phosphate Cement |
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