Experimental study of Si–Al substitution in calcium-silicate-hydrate (C-S-H) prepared under equilibrium conditions
C-A-S-H of varying Al/Si and Ca/(Al + Si) ratios have been prepared introducing C-S-H (Ca/Si = 0.66 and 0.95) at different weight concentrations in a solution coming from the hydration of tricalcium aluminate (Ca 3Al 2O 6) in water. XRD and EDX (TEM) analyses show that using this typical synthesise...
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| Veröffentlicht in: | Cement and concrete research 2009-08, Vol.39 (8), p.637-643 |
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| creator | Pardal, Xiaolin Pochard, Isabelle Nonat, André |
| description | C-A-S-H of varying Al/Si and Ca/(Al
+
Si) ratios have been prepared introducing C-S-H (Ca/Si
=
0.66 and 0.95) at different weight concentrations in a solution coming from the hydration of tricalcium aluminate (Ca
3Al
2O
6) in water. XRD and EDX (TEM) analyses show that using this typical synthesise procedure, pure C-A-S-H is obtained only for calcium hydroxide concentrations below 4.5 mmol L
−
1
. Otherwise, calcium carboaluminate or strätlingite is also present beside C-A-S-H. The tobermorite-like structure is maintained for C-A-S-H. A kinetic study has shown that the formation of C-A-S-H is a fast reaction, typically less than a few hours. The Ca/(Al
+
Si) ratio of C-A-S-H matches the Ca/Si ratio of the initial C-S-H, in the ionic concentration range studied
i.e., less than 4.5 and 3 mmol L
−
1
of calcium hydroxide and aluminium hydroxide respectively. The Al/Si ratio increases with the aluminium concentration in the solution and reaches a maximum value of 0.19. |
| doi_str_mv | 10.1016/j.cemconres.2009.05.001 |
| format | Article |
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+
Si) ratios have been prepared introducing C-S-H (Ca/Si
=
0.66 and 0.95) at different weight concentrations in a solution coming from the hydration of tricalcium aluminate (Ca
3Al
2O
6) in water. XRD and EDX (TEM) analyses show that using this typical synthesise procedure, pure C-A-S-H is obtained only for calcium hydroxide concentrations below 4.5 mmol L
−
1
. Otherwise, calcium carboaluminate or strätlingite is also present beside C-A-S-H. The tobermorite-like structure is maintained for C-A-S-H. A kinetic study has shown that the formation of C-A-S-H is a fast reaction, typically less than a few hours. The Ca/(Al
+
Si) ratio of C-A-S-H matches the Ca/Si ratio of the initial C-S-H, in the ionic concentration range studied
i.e., less than 4.5 and 3 mmol L
−
1
of calcium hydroxide and aluminium hydroxide respectively. The Al/Si ratio increases with the aluminium concentration in the solution and reaches a maximum value of 0.19.</description><identifier>ISSN: 0008-8846</identifier><identifier>EISSN: 1873-3948</identifier><identifier>DOI: 10.1016/j.cemconres.2009.05.001</identifier><identifier>CODEN: CCNRAI</identifier><language>eng</language><publisher>Kidlington: Elsevier Ltd</publisher><subject>Aluminium ; Analysis of cement phases and constituents ; Applied sciences ; Buildings. Public works ; Calcium-silicate-hydrate (C-S-H) ; Cement concrete constituents ; Cements ; Chemistry ; Exact sciences and technology ; Materials ; Properties of anhydrous and hydrated cement, test methods ; Thermodynamic equilibria</subject><ispartof>Cement and concrete research, 2009-08, Vol.39 (8), p.637-643</ispartof><rights>2009 Elsevier Ltd</rights><rights>2015 INIST-CNRS</rights><rights>Distributed under a Creative Commons Attribution 4.0 International License</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c476t-f9cdc3f13906666461f9c65caf00139704734db0a4f044a067b43358ad1252313</citedby><cites>FETCH-LOGICAL-c476t-f9cdc3f13906666461f9c65caf00139704734db0a4f044a067b43358ad1252313</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.cemconres.2009.05.001$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>230,314,780,784,885,3550,27924,27925,45995</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=21803237$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://hal.science/hal-00417653$$DView record in HAL$$Hfree_for_read</backlink></links><search><creatorcontrib>Pardal, Xiaolin</creatorcontrib><creatorcontrib>Pochard, Isabelle</creatorcontrib><creatorcontrib>Nonat, André</creatorcontrib><title>Experimental study of Si–Al substitution in calcium-silicate-hydrate (C-S-H) prepared under equilibrium conditions</title><title>Cement and concrete research</title><description>C-A-S-H of varying Al/Si and Ca/(Al
+
Si) ratios have been prepared introducing C-S-H (Ca/Si
=
0.66 and 0.95) at different weight concentrations in a solution coming from the hydration of tricalcium aluminate (Ca
3Al
2O
6) in water. XRD and EDX (TEM) analyses show that using this typical synthesise procedure, pure C-A-S-H is obtained only for calcium hydroxide concentrations below 4.5 mmol L
−
1
. Otherwise, calcium carboaluminate or strätlingite is also present beside C-A-S-H. The tobermorite-like structure is maintained for C-A-S-H. A kinetic study has shown that the formation of C-A-S-H is a fast reaction, typically less than a few hours. The Ca/(Al
+
Si) ratio of C-A-S-H matches the Ca/Si ratio of the initial C-S-H, in the ionic concentration range studied
i.e., less than 4.5 and 3 mmol L
−
1
of calcium hydroxide and aluminium hydroxide respectively. The Al/Si ratio increases with the aluminium concentration in the solution and reaches a maximum value of 0.19.</description><subject>Aluminium</subject><subject>Analysis of cement phases and constituents</subject><subject>Applied sciences</subject><subject>Buildings. Public works</subject><subject>Calcium-silicate-hydrate (C-S-H)</subject><subject>Cement concrete constituents</subject><subject>Cements</subject><subject>Chemistry</subject><subject>Exact sciences and technology</subject><subject>Materials</subject><subject>Properties of anhydrous and hydrated cement, test methods</subject><subject>Thermodynamic equilibria</subject><issn>0008-8846</issn><issn>1873-3948</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2009</creationdate><recordtype>article</recordtype><recordid>eNqFkc-O0zAQxi0EEqXwDPgCYg8O49iJk2NVLduVKnFYOFuuPdG6SpOs7azojXfgDXkSHHXVK76M_Ok33_wj5COHggOvvx4Liyc7DgFjUQK0BVQFAH9FVrxRgolWNq_JCgAa1jSyfkvexXjM37oUzYqk218TBn_CIZmexjS7Mx07-uD__v6zycJ8iMmnOflxoH6g1vTWzycWfe-tScgezy7kSL9s2QPb3dAp4GQCOjoPDgPFpzmTh5BzaO7R-cUovidvOtNH_PAS1-Tnt9sf2x3bf7-73272zEpVJ9a11lnRcdFCnZ-seVbqypouzydaBVIJ6Q5gZAdSGqjVQQpRNcbxsioFF2tyc_F9NL2e8pQmnPVovN5t9nrRACRXdSWeF_bzhZ3C-DRjTPrko8W-NwOOc9RCqmxaigyqC2jDGGPA7urMQS8X0Ud9vYheLqKh0kvHa_LppYSJeZFdMIP18Zpe8gZEKVTmNhcO826ePQYdrcfBovMBbdJu9P-t9Q-wzKZw</recordid><startdate>20090801</startdate><enddate>20090801</enddate><creator>Pardal, Xiaolin</creator><creator>Pochard, Isabelle</creator><creator>Nonat, André</creator><general>Elsevier Ltd</general><general>Elsevier</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7QF</scope><scope>7QQ</scope><scope>7SR</scope><scope>8BQ</scope><scope>8FD</scope><scope>FR3</scope><scope>JG9</scope><scope>KR7</scope><scope>1XC</scope></search><sort><creationdate>20090801</creationdate><title>Experimental study of Si–Al substitution in calcium-silicate-hydrate (C-S-H) prepared under equilibrium conditions</title><author>Pardal, Xiaolin ; Pochard, Isabelle ; Nonat, André</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c476t-f9cdc3f13906666461f9c65caf00139704734db0a4f044a067b43358ad1252313</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2009</creationdate><topic>Aluminium</topic><topic>Analysis of cement phases and constituents</topic><topic>Applied sciences</topic><topic>Buildings. Public works</topic><topic>Calcium-silicate-hydrate (C-S-H)</topic><topic>Cement concrete constituents</topic><topic>Cements</topic><topic>Chemistry</topic><topic>Exact sciences and technology</topic><topic>Materials</topic><topic>Properties of anhydrous and hydrated cement, test methods</topic><topic>Thermodynamic equilibria</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Pardal, Xiaolin</creatorcontrib><creatorcontrib>Pochard, Isabelle</creatorcontrib><creatorcontrib>Nonat, André</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Aluminium Industry Abstracts</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><collection>Hyper Article en Ligne (HAL)</collection><jtitle>Cement and concrete research</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Pardal, Xiaolin</au><au>Pochard, Isabelle</au><au>Nonat, André</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Experimental study of Si–Al substitution in calcium-silicate-hydrate (C-S-H) prepared under equilibrium conditions</atitle><jtitle>Cement and concrete research</jtitle><date>2009-08-01</date><risdate>2009</risdate><volume>39</volume><issue>8</issue><spage>637</spage><epage>643</epage><pages>637-643</pages><issn>0008-8846</issn><eissn>1873-3948</eissn><coden>CCNRAI</coden><abstract>C-A-S-H of varying Al/Si and Ca/(Al
+
Si) ratios have been prepared introducing C-S-H (Ca/Si
=
0.66 and 0.95) at different weight concentrations in a solution coming from the hydration of tricalcium aluminate (Ca
3Al
2O
6) in water. XRD and EDX (TEM) analyses show that using this typical synthesise procedure, pure C-A-S-H is obtained only for calcium hydroxide concentrations below 4.5 mmol L
−
1
. Otherwise, calcium carboaluminate or strätlingite is also present beside C-A-S-H. The tobermorite-like structure is maintained for C-A-S-H. A kinetic study has shown that the formation of C-A-S-H is a fast reaction, typically less than a few hours. The Ca/(Al
+
Si) ratio of C-A-S-H matches the Ca/Si ratio of the initial C-S-H, in the ionic concentration range studied
i.e., less than 4.5 and 3 mmol L
−
1
of calcium hydroxide and aluminium hydroxide respectively. The Al/Si ratio increases with the aluminium concentration in the solution and reaches a maximum value of 0.19.</abstract><cop>Kidlington</cop><pub>Elsevier Ltd</pub><doi>10.1016/j.cemconres.2009.05.001</doi><tpages>7</tpages></addata></record> |
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| ispartof | Cement and concrete research, 2009-08, Vol.39 (8), p.637-643 |
| issn | 0008-8846 1873-3948 |
| language | eng |
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| source | Elsevier ScienceDirect Journals Complete |
| subjects | Aluminium Analysis of cement phases and constituents Applied sciences Buildings. Public works Calcium-silicate-hydrate (C-S-H) Cement concrete constituents Cements Chemistry Exact sciences and technology Materials Properties of anhydrous and hydrated cement, test methods Thermodynamic equilibria |
| title | Experimental study of Si–Al substitution in calcium-silicate-hydrate (C-S-H) prepared under equilibrium conditions |
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