Size effects in modeling diffusivity of hardened mortar
A critical parameter for evaluating the resistance of concrete against chloride diffusion is effective diffusivity. While it can be obtained experimentally, this paper concerns computer simulations to estimate diffusivity of mortars as influenced by paste, aggregate, and interfacial effects. However...
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| Veröffentlicht in: | Computers & structures 2011-05, Vol.89 (9), p.713-723 |
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| creator | Keskin, R.S.O. Hover, K.C. Grigoriu, M. |
| description | A critical parameter for evaluating the resistance of concrete against chloride diffusion is effective diffusivity. While it can be obtained experimentally, this paper concerns computer simulations to estimate diffusivity of mortars as influenced by paste, aggregate, and interfacial effects. However, when performing such simulations, the size of the mortar sample modeled must be large enough to reliably characterize these randomly distributed effects, while remaining small enough for computational efficiency. The purpose of this paper is to report the influence of sample size on computed results and to recommend the smallest specimen size needed to obtain reliable estimates of diffusivity. |
| doi_str_mv | 10.1016/j.compstruc.2011.02.018 |
| format | Article |
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While it can be obtained experimentally, this paper concerns computer simulations to estimate diffusivity of mortars as influenced by paste, aggregate, and interfacial effects. However, when performing such simulations, the size of the mortar sample modeled must be large enough to reliably characterize these randomly distributed effects, while remaining small enough for computational efficiency. The purpose of this paper is to report the influence of sample size on computed results and to recommend the smallest specimen size needed to obtain reliable estimates of diffusivity.</description><identifier>ISSN: 0045-7949</identifier><identifier>EISSN: 1879-2243</identifier><identifier>DOI: 10.1016/j.compstruc.2011.02.018</identifier><language>eng</language><publisher>Kidlington: Elsevier Ltd</publisher><subject>Aggregates ; Applied sciences ; Buildings. Public works ; Chloride diffusivity of mortar specimens ; Computational efficiency ; Computer simulation ; Diffusion ; Diffusivity ; Effective diffusivity ; Estimates ; Exact sciences and technology ; Fundamental areas of phenomenology (including applications) ; Itô process ; Local method ; Mathematical models ; Mathematics ; Measurements. Technique of testing ; Methods of scientific computing (including symbolic computation, algebraic computation) ; Mortars ; Numerical analysis. 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While it can be obtained experimentally, this paper concerns computer simulations to estimate diffusivity of mortars as influenced by paste, aggregate, and interfacial effects. However, when performing such simulations, the size of the mortar sample modeled must be large enough to reliably characterize these randomly distributed effects, while remaining small enough for computational efficiency. The purpose of this paper is to report the influence of sample size on computed results and to recommend the smallest specimen size needed to obtain reliable estimates of diffusivity.</description><subject>Aggregates</subject><subject>Applied sciences</subject><subject>Buildings. Public works</subject><subject>Chloride diffusivity of mortar specimens</subject><subject>Computational efficiency</subject><subject>Computer simulation</subject><subject>Diffusion</subject><subject>Diffusivity</subject><subject>Effective diffusivity</subject><subject>Estimates</subject><subject>Exact sciences and technology</subject><subject>Fundamental areas of phenomenology (including applications)</subject><subject>Itô process</subject><subject>Local method</subject><subject>Mathematical models</subject><subject>Mathematics</subject><subject>Measurements. Technique of testing</subject><subject>Methods of scientific computing (including symbolic computation, algebraic computation)</subject><subject>Mortars</subject><subject>Numerical analysis. Scientific computation</subject><subject>Pastes</subject><subject>Physics</subject><subject>Random heterogeneous materials</subject><subject>Sciences and techniques of general use</subject><subject>Size effect</subject><subject>Solid mechanics</subject><subject>Structural and continuum mechanics</subject><issn>0045-7949</issn><issn>1879-2243</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2011</creationdate><recordtype>article</recordtype><recordid>eNqFkDtPwzAUhS0EEqXwG8iCmBL8ip2MVcVLqsQAzJZjX4OrPIqdVCq_HletujLd5Tvn6H4I3RJcEEzEw7owQ7eJY5hMQTEhBaYFJtUZmpFK1jmlnJ2jGca8zGXN60t0FeMaYyw4xjMk3_0vZOAcmDFmvs-6wULr-6_Meuem6Ld-3GWDy751sNCDTUAYdbhGF063EW6Od44-nx4_li_56u35dblY5YZJOeamYkSA0a6qDYNSCKG55A1UtjG8EbpiGBh3hApu6lpbh5kk0hlOy4Zr0GyO7g-9mzD8TBBH1flooG11D8MUVSXqiglaykTKA2nCEGMApzbBdzrsFMFqb0qt1cmU2ptSmKpkKiXvjhs6Gt26oHvj4ylOeXIniUjc4sBBenjrIahoPPQGrA9Jn7KD_3frD9WFg74</recordid><startdate>20110501</startdate><enddate>20110501</enddate><creator>Keskin, R.S.O.</creator><creator>Hover, K.C.</creator><creator>Grigoriu, M.</creator><general>Elsevier Ltd</general><general>Elsevier</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SC</scope><scope>8FD</scope><scope>FR3</scope><scope>JQ2</scope><scope>KR7</scope><scope>L7M</scope><scope>L~C</scope><scope>L~D</scope></search><sort><creationdate>20110501</creationdate><title>Size effects in modeling diffusivity of hardened mortar</title><author>Keskin, R.S.O. ; Hover, K.C. ; Grigoriu, M.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c377t-c8316ecaf89c3e5666a474be8dbc4b6a830e34f1264c99adf03717fc425b4aea3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2011</creationdate><topic>Aggregates</topic><topic>Applied sciences</topic><topic>Buildings. Public works</topic><topic>Chloride diffusivity of mortar specimens</topic><topic>Computational efficiency</topic><topic>Computer simulation</topic><topic>Diffusion</topic><topic>Diffusivity</topic><topic>Effective diffusivity</topic><topic>Estimates</topic><topic>Exact sciences and technology</topic><topic>Fundamental areas of phenomenology (including applications)</topic><topic>Itô process</topic><topic>Local method</topic><topic>Mathematical models</topic><topic>Mathematics</topic><topic>Measurements. Technique of testing</topic><topic>Methods of scientific computing (including symbolic computation, algebraic computation)</topic><topic>Mortars</topic><topic>Numerical analysis. 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| ispartof | Computers & structures, 2011-05, Vol.89 (9), p.713-723 |
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| source | Elsevier ScienceDirect Journals |
| subjects | Aggregates Applied sciences Buildings. Public works Chloride diffusivity of mortar specimens Computational efficiency Computer simulation Diffusion Diffusivity Effective diffusivity Estimates Exact sciences and technology Fundamental areas of phenomenology (including applications) Itô process Local method Mathematical models Mathematics Measurements. Technique of testing Methods of scientific computing (including symbolic computation, algebraic computation) Mortars Numerical analysis. Scientific computation Pastes Physics Random heterogeneous materials Sciences and techniques of general use Size effect Solid mechanics Structural and continuum mechanics |
| title | Size effects in modeling diffusivity of hardened mortar |
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