The alkali–silica reaction: The effect of monovalent and bivalent cations on the surface charge of opal
The degree of expansion of alkali–silica reaction (ASR) gel is dependent on the valence and relative concentrations of cations present in the ASR gel. The electrical double-layer (EDL) model can predict which gel will be more expansive. If double-layer models are applied in a complex system, as in c...
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| Veröffentlicht in: | Cement and concrete research 2001-11, Vol.31 (11), p.1549-1552 |
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| container_title | Cement and concrete research |
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| creator | Rodrigues, Flávio A. Monteiro, Paulo J.M. Sposito, Garrison |
| description | The degree of expansion of alkali–silica reaction (ASR) gel is dependent on the valence and relative concentrations of cations present in the ASR gel. The electrical double-layer (EDL) model can predict which gel will be more expansive. If double-layer models are applied in a complex system, as in concrete, it is necessary to characterize the surface charge density of amorphous silica as a function of pH and electrolytes. The effects of Li
+, Na
+, K
+, Mg
+2, Ca
+2, and Ba
+2 on the surface charge density of opal have been measured as a function of pH. The results indicate that bivalent ions produce much lower surface charge density than monovalent ions, resulting in less expansive gels. |
| doi_str_mv | 10.1016/S0008-8846(01)00578-6 |
| format | Article |
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+, Na
+, K
+, Mg
+2, Ca
+2, and Ba
+2 on the surface charge density of opal have been measured as a function of pH. The results indicate that bivalent ions produce much lower surface charge density than monovalent ions, resulting in less expansive gels.</description><identifier>ISSN: 0008-8846</identifier><identifier>EISSN: 1873-3948</identifier><identifier>DOI: 10.1016/S0008-8846(01)00578-6</identifier><identifier>CODEN: CCNRAI</identifier><language>eng</language><publisher>New York, NY: Elsevier Ltd</publisher><subject>Aggregate ; Aggregates and other concrete constituents ; Alkali–aggregate reaction ; Amorphous material ; Applied sciences ; Buildings. Public works ; Cement concrete constituents ; Cements ; Exact sciences and technology ; Hydration ; Materials ; Natural aggregates ; Properties of anhydrous and hydrated cement, test methods</subject><ispartof>Cement and concrete research, 2001-11, Vol.31 (11), p.1549-1552</ispartof><rights>2001 Elsevier Science Ltd</rights><rights>2002 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/S0008-8846(01)00578-6$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,778,782,3539,27911,27912,45982</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=13433833$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Rodrigues, Flávio A.</creatorcontrib><creatorcontrib>Monteiro, Paulo J.M.</creatorcontrib><creatorcontrib>Sposito, Garrison</creatorcontrib><title>The alkali–silica reaction: The effect of monovalent and bivalent cations on the surface charge of opal</title><title>Cement and concrete research</title><description>The degree of expansion of alkali–silica reaction (ASR) gel is dependent on the valence and relative concentrations of cations present in the ASR gel. The electrical double-layer (EDL) model can predict which gel will be more expansive. If double-layer models are applied in a complex system, as in concrete, it is necessary to characterize the surface charge density of amorphous silica as a function of pH and electrolytes. The effects of Li
+, Na
+, K
+, Mg
+2, Ca
+2, and Ba
+2 on the surface charge density of opal have been measured as a function of pH. The results indicate that bivalent ions produce much lower surface charge density than monovalent ions, resulting in less expansive gels.</description><subject>Aggregate</subject><subject>Aggregates and other concrete constituents</subject><subject>Alkali–aggregate reaction</subject><subject>Amorphous material</subject><subject>Applied sciences</subject><subject>Buildings. Public works</subject><subject>Cement concrete constituents</subject><subject>Cements</subject><subject>Exact sciences and technology</subject><subject>Hydration</subject><subject>Materials</subject><subject>Natural aggregates</subject><subject>Properties of anhydrous and hydrated cement, test methods</subject><issn>0008-8846</issn><issn>1873-3948</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2001</creationdate><recordtype>article</recordtype><recordid>eNo9kM1KAzEQx4MoWKuPIOQi6GE12aT58CJS_IKCB-s5zGZnbXS7W5K14M138A19Enfb4mn4M78ZZn6EnHJ2yRlXVy-MMZMZI9U54xeMTbTJ1B4ZcaNFJqw0-2T0jxySo5Te-6hyYUYkzBdIof6AOvx-_6RQBw80IvgutM01HbpYVeg72lZ02TbtGmpsOgpNSYuwCx4GOtG2oV0_kD5jBR6pX0B8w2GwXUF9TA4qqBOe7OqYvN7fzaeP2ez54Wl6O8swF7bLJJsUyhjNTV6VjGMhbY5qMtFMCV9oqVVeCtBoDcjcgrU2L5mxXDBvC62lGJOz7d4VJA91FaHxIblVDEuIX44LKYQRouduthz2x6wDRpd8wMZjGWL_ryvb4Dhzg2G3MewGfY5xtzHslPgDpBdvZw</recordid><startdate>20011101</startdate><enddate>20011101</enddate><creator>Rodrigues, Flávio A.</creator><creator>Monteiro, Paulo J.M.</creator><creator>Sposito, Garrison</creator><general>Elsevier Ltd</general><general>Elsevier Science</general><scope>IQODW</scope></search><sort><creationdate>20011101</creationdate><title>The alkali–silica reaction: The effect of monovalent and bivalent cations on the surface charge of opal</title><author>Rodrigues, Flávio A. ; Monteiro, Paulo J.M. ; Sposito, Garrison</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-e239t-405b6887182fd01eb492e6557063cb74762d3a7e98a429a9992d089130c9b7743</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2001</creationdate><topic>Aggregate</topic><topic>Aggregates and other concrete constituents</topic><topic>Alkali–aggregate reaction</topic><topic>Amorphous material</topic><topic>Applied sciences</topic><topic>Buildings. Public works</topic><topic>Cement concrete constituents</topic><topic>Cements</topic><topic>Exact sciences and technology</topic><topic>Hydration</topic><topic>Materials</topic><topic>Natural aggregates</topic><topic>Properties of anhydrous and hydrated cement, test methods</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Rodrigues, Flávio A.</creatorcontrib><creatorcontrib>Monteiro, Paulo J.M.</creatorcontrib><creatorcontrib>Sposito, Garrison</creatorcontrib><collection>Pascal-Francis</collection><jtitle>Cement and concrete research</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Rodrigues, Flávio A.</au><au>Monteiro, Paulo J.M.</au><au>Sposito, Garrison</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>The alkali–silica reaction: The effect of monovalent and bivalent cations on the surface charge of opal</atitle><jtitle>Cement and concrete research</jtitle><date>2001-11-01</date><risdate>2001</risdate><volume>31</volume><issue>11</issue><spage>1549</spage><epage>1552</epage><pages>1549-1552</pages><issn>0008-8846</issn><eissn>1873-3948</eissn><coden>CCNRAI</coden><abstract>The degree of expansion of alkali–silica reaction (ASR) gel is dependent on the valence and relative concentrations of cations present in the ASR gel. The electrical double-layer (EDL) model can predict which gel will be more expansive. If double-layer models are applied in a complex system, as in concrete, it is necessary to characterize the surface charge density of amorphous silica as a function of pH and electrolytes. The effects of Li
+, Na
+, K
+, Mg
+2, Ca
+2, and Ba
+2 on the surface charge density of opal have been measured as a function of pH. The results indicate that bivalent ions produce much lower surface charge density than monovalent ions, resulting in less expansive gels.</abstract><cop>New York, NY</cop><pub>Elsevier Ltd</pub><doi>10.1016/S0008-8846(01)00578-6</doi><tpages>4</tpages></addata></record> |
| fulltext | fulltext |
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| ispartof | Cement and concrete research, 2001-11, Vol.31 (11), p.1549-1552 |
| issn | 0008-8846 1873-3948 |
| language | eng |
| recordid | cdi_pascalfrancis_primary_13433833 |
| source | ScienceDirect Journals (5 years ago - present) |
| subjects | Aggregate Aggregates and other concrete constituents Alkali–aggregate reaction Amorphous material Applied sciences Buildings. Public works Cement concrete constituents Cements Exact sciences and technology Hydration Materials Natural aggregates Properties of anhydrous and hydrated cement, test methods |
| title | The alkali–silica reaction: The effect of monovalent and bivalent cations on the surface charge of opal |
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