Thermal properties and microstructure of gypsum board and its dehydration products: A theoretical and experimental investigation
SUMMARY This article addresses the thermal properties and the microstructure of gypsum boards produced from β‐hemihydrate by studying its dehydration process. Dehydration reaction of gypsum boards was investigated from both micro and macro levels, employing thermogravimetric analysis and a ventilate...
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| Veröffentlicht in: | Fire and materials 2012-11, Vol.36 (7), p.575-589 |
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| container_title | Fire and materials |
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| creator | Yu, Q. L. Brouwers, H. J. H. |
| description | SUMMARY
This article addresses the thermal properties and the microstructure of gypsum boards produced from β‐hemihydrate by studying its dehydration process.
Dehydration reaction of gypsum boards was investigated from both micro and macro levels, employing thermogravimetric analysis and a ventilated oven. A new dehydration mechanism of gypsum was proposed. The thermal properties of gypsum board such as enthalpy of reaction, specific heat capacity, and thermal conductivity were studied by differential scanning calorimetry and a heat transfer analyzer, respectively. The effect of void fraction and dehydration on thermal physical properties of gypsum board was investigated. The microstructure of the gypsum board at high temperature was studied with experiments and modeling. A model was proposed to describe the microstructure of a dehydrated system at high temperature, and experiments indicate its validity. Furthermore, the mechanical properties of gypsum at high temperature were investigated, and the effect of water content was discussed as well. Copyright © 2011 John Wiley & Sons, Ltd. |
| doi_str_mv | 10.1002/fam.1117 |
| format | Article |
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This article addresses the thermal properties and the microstructure of gypsum boards produced from β‐hemihydrate by studying its dehydration process.
Dehydration reaction of gypsum boards was investigated from both micro and macro levels, employing thermogravimetric analysis and a ventilated oven. A new dehydration mechanism of gypsum was proposed. The thermal properties of gypsum board such as enthalpy of reaction, specific heat capacity, and thermal conductivity were studied by differential scanning calorimetry and a heat transfer analyzer, respectively. The effect of void fraction and dehydration on thermal physical properties of gypsum board was investigated. The microstructure of the gypsum board at high temperature was studied with experiments and modeling. A model was proposed to describe the microstructure of a dehydrated system at high temperature, and experiments indicate its validity. Furthermore, the mechanical properties of gypsum at high temperature were investigated, and the effect of water content was discussed as well. Copyright © 2011 John Wiley & Sons, Ltd.</description><identifier>ISSN: 0308-0501</identifier><identifier>EISSN: 1099-1018</identifier><identifier>DOI: 10.1002/fam.1117</identifier><identifier>CODEN: FMATDV</identifier><language>eng</language><publisher>Chichester: Blackwell Publishing Ltd</publisher><subject>Applied sciences ; Building technical equipments ; Buildings ; Buildings. Public works ; dehydration ; Exact sciences and technology ; Fire behavior of materials and structures ; Fire protection ; gypsum board ; Lime. Gypsum plaster. Plaster elements ; Materials ; mechanical properties ; microstructure ; thermal properties ; β-hemihydrate</subject><ispartof>Fire and materials, 2012-11, Vol.36 (7), p.575-589</ispartof><rights>Copyright © 2011 John Wiley & Sons, Ltd.</rights><rights>2014 INIST-CNRS</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c4707-32d2d7f080986e94a1340fd611340dd25bb0e1ecf27721131194dc4c830abc803</citedby><cites>FETCH-LOGICAL-c4707-32d2d7f080986e94a1340fd611340dd25bb0e1ecf27721131194dc4c830abc803</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.1002%2Ffam.1117$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1002%2Ffam.1117$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>314,780,784,1417,27924,27925,45574,45575</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=26561462$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Yu, Q. L.</creatorcontrib><creatorcontrib>Brouwers, H. J. H.</creatorcontrib><title>Thermal properties and microstructure of gypsum board and its dehydration products: A theoretical and experimental investigation</title><title>Fire and materials</title><addtitle>Fire Mater</addtitle><description>SUMMARY
This article addresses the thermal properties and the microstructure of gypsum boards produced from β‐hemihydrate by studying its dehydration process.
Dehydration reaction of gypsum boards was investigated from both micro and macro levels, employing thermogravimetric analysis and a ventilated oven. A new dehydration mechanism of gypsum was proposed. The thermal properties of gypsum board such as enthalpy of reaction, specific heat capacity, and thermal conductivity were studied by differential scanning calorimetry and a heat transfer analyzer, respectively. The effect of void fraction and dehydration on thermal physical properties of gypsum board was investigated. The microstructure of the gypsum board at high temperature was studied with experiments and modeling. A model was proposed to describe the microstructure of a dehydrated system at high temperature, and experiments indicate its validity. Furthermore, the mechanical properties of gypsum at high temperature were investigated, and the effect of water content was discussed as well. Copyright © 2011 John Wiley & Sons, Ltd.</description><subject>Applied sciences</subject><subject>Building technical equipments</subject><subject>Buildings</subject><subject>Buildings. Public works</subject><subject>dehydration</subject><subject>Exact sciences and technology</subject><subject>Fire behavior of materials and structures</subject><subject>Fire protection</subject><subject>gypsum board</subject><subject>Lime. Gypsum plaster. Plaster elements</subject><subject>Materials</subject><subject>mechanical properties</subject><subject>microstructure</subject><subject>thermal properties</subject><subject>β-hemihydrate</subject><issn>0308-0501</issn><issn>1099-1018</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2012</creationdate><recordtype>article</recordtype><recordid>eNp1kE1LAzEQhoMoWD_An5CL4GV1srvdZL0V8ZNWQSp6C2kya6PdD5JU7c2fbtYWb54GXp55mHkJOWJwygDSs0rVp4wxvkUGDMoyYcDENhlABiKBIbBdsuf9GwAIwYsB-Z7O0dVqQTvXduiCRU9VY2httWt9cEsdlg5pW9HXVeeXNZ21yplfxAZPDc5Xxqlg26Y3mIj7czqiYY6tw2B1NPcsfkW5rbEJMbDNB_pgX3_XDshOpRYeDzdznzxdXU4vbpLxw_XtxWic6JwDT7LUpIZXIKAUBZa5YlkOlSlYP41Jh7MZIENdpZynMWSszI3OtchAzbSAbJ-crL39X95hJbt4kHIryUD2zcnYnOybi-jxGu2Ujw9UTjXa-j8-LYYFy4s0csma-7QLXP3rk1ejyca74a0P-PXHK_cuC57xoXy-v5YvYz4BcfciH7MfsryOAg</recordid><startdate>201211</startdate><enddate>201211</enddate><creator>Yu, Q. L.</creator><creator>Brouwers, H. J. H.</creator><general>Blackwell Publishing Ltd</general><general>Wiley</general><scope>BSCLL</scope><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope></search><sort><creationdate>201211</creationdate><title>Thermal properties and microstructure of gypsum board and its dehydration products: A theoretical and experimental investigation</title><author>Yu, Q. L. ; Brouwers, H. J. H.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c4707-32d2d7f080986e94a1340fd611340dd25bb0e1ecf27721131194dc4c830abc803</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2012</creationdate><topic>Applied sciences</topic><topic>Building technical equipments</topic><topic>Buildings</topic><topic>Buildings. Public works</topic><topic>dehydration</topic><topic>Exact sciences and technology</topic><topic>Fire behavior of materials and structures</topic><topic>Fire protection</topic><topic>gypsum board</topic><topic>Lime. Gypsum plaster. Plaster elements</topic><topic>Materials</topic><topic>mechanical properties</topic><topic>microstructure</topic><topic>thermal properties</topic><topic>β-hemihydrate</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Yu, Q. L.</creatorcontrib><creatorcontrib>Brouwers, H. J. H.</creatorcontrib><collection>Istex</collection><collection>Pascal-Francis</collection><collection>CrossRef</collection><jtitle>Fire and materials</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Yu, Q. L.</au><au>Brouwers, H. J. H.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Thermal properties and microstructure of gypsum board and its dehydration products: A theoretical and experimental investigation</atitle><jtitle>Fire and materials</jtitle><addtitle>Fire Mater</addtitle><date>2012-11</date><risdate>2012</risdate><volume>36</volume><issue>7</issue><spage>575</spage><epage>589</epage><pages>575-589</pages><issn>0308-0501</issn><eissn>1099-1018</eissn><coden>FMATDV</coden><abstract>SUMMARY
This article addresses the thermal properties and the microstructure of gypsum boards produced from β‐hemihydrate by studying its dehydration process.
Dehydration reaction of gypsum boards was investigated from both micro and macro levels, employing thermogravimetric analysis and a ventilated oven. A new dehydration mechanism of gypsum was proposed. The thermal properties of gypsum board such as enthalpy of reaction, specific heat capacity, and thermal conductivity were studied by differential scanning calorimetry and a heat transfer analyzer, respectively. The effect of void fraction and dehydration on thermal physical properties of gypsum board was investigated. The microstructure of the gypsum board at high temperature was studied with experiments and modeling. A model was proposed to describe the microstructure of a dehydrated system at high temperature, and experiments indicate its validity. Furthermore, the mechanical properties of gypsum at high temperature were investigated, and the effect of water content was discussed as well. Copyright © 2011 John Wiley & Sons, Ltd.</abstract><cop>Chichester</cop><pub>Blackwell Publishing Ltd</pub><doi>10.1002/fam.1117</doi><tpages>15</tpages><oa>free_for_read</oa></addata></record> |
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| ispartof | Fire and materials, 2012-11, Vol.36 (7), p.575-589 |
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| language | eng |
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| subjects | Applied sciences Building technical equipments Buildings Buildings. Public works dehydration Exact sciences and technology Fire behavior of materials and structures Fire protection gypsum board Lime. Gypsum plaster. Plaster elements Materials mechanical properties microstructure thermal properties β-hemihydrate |
| title | Thermal properties and microstructure of gypsum board and its dehydration products: A theoretical and experimental investigation |
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