Estimation of Electrical Resistivity of Concrete with Blast‑Furnace Slag
Blast-furnace slag (BFS) has been increasingly used in cement production and has shown great influence on the electrical resistivity of concrete. The objective of this paper is to compare the theoretical values of electrical resistivity obtained through a mathematical model with experimental values...
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| Veröffentlicht in: | ACI materials journal 2021-07, Vol.118 (4), p.27-37 |
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| creator | Mendes, S.E.S Oliveira, R.L.N Cremonez, C Pereira, E Trentin, P.O Medeiros-Junior, R.A |
| description | Blast-furnace slag (BFS) has been increasingly used in cement production and has shown great influence on the electrical resistivity of concrete. The objective of this paper is to compare the theoretical values of electrical resistivity obtained through a mathematical model with experimental values for concrete with BFS. Reference concrete mixtures with ordinary portland cement were also studied. Results indicate higher electrical resistivity and smaller porosity for concretes with CEMIII/A. The electrical resistivity of the CEM III/A concrete does not have a well-defined correlation with the water-binder ratio (w/b) or with the compressive strength, unlike CEM I concretes. The correlation between calculated and experimental resistivity requires a correction factor for the CEM III/A concretes. In this study, the correction factor was obtained empirically by reducing the theoretical tortuosity of concrete by 15%. Therefore, the model should be used in cements with BFS with the application of a correction factor. Keywords: durability; electrical resistivity; models; nondestructive testing; porosimetry. |
| doi_str_mv | 10.14359/51732597 |
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The objective of this paper is to compare the theoretical values of electrical resistivity obtained through a mathematical model with experimental values for concrete with BFS. Reference concrete mixtures with ordinary portland cement were also studied. Results indicate higher electrical resistivity and smaller porosity for concretes with CEMIII/A. The electrical resistivity of the CEM III/A concrete does not have a well-defined correlation with the water-binder ratio (w/b) or with the compressive strength, unlike CEM I concretes. The correlation between calculated and experimental resistivity requires a correction factor for the CEM III/A concretes. In this study, the correction factor was obtained empirically by reducing the theoretical tortuosity of concrete by 15%. Therefore, the model should be used in cements with BFS with the application of a correction factor. 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Oliveira, R.L.N ; Cremonez, C ; Pereira, E ; Trentin, P.O ; Medeiros-Junior, R.A</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c296t-e10f4fef68814f2d850ccd854d5a0f36e2a5ecac750142de807dda771dffb09b3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2021</creationdate><topic>Blast furnace practice</topic><topic>Blast furnace slags</topic><topic>Cement</topic><topic>Compressive strength</topic><topic>Concrete</topic><topic>Corrosion</topic><topic>Electric properties</topic><topic>Electric resistance</topic><topic>Electrical resistivity</topic><topic>Electrodes</topic><topic>Evaluation</topic><topic>Hydration</topic><topic>Mathematical models</topic><topic>Measurement techniques</topic><topic>Permeability</topic><topic>Portland cements</topic><topic>Slag</topic><topic>Tortuosity</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Mendes, S.E.S</creatorcontrib><creatorcontrib>Oliveira, R.L.N</creatorcontrib><creatorcontrib>Cremonez, C</creatorcontrib><creatorcontrib>Pereira, E</creatorcontrib><creatorcontrib>Trentin, P.O</creatorcontrib><creatorcontrib>Medeiros-Junior, R.A</creatorcontrib><collection>CrossRef</collection><collection>ProQuest Central (Corporate)</collection><collection>Docstoc</collection><collection>Ceramic Abstracts</collection><collection>Career & Technical Education Database</collection><collection>Engineered Materials Abstracts</collection><collection>ProQuest Central (purchase pre-March 2016)</collection><collection>Science Database (Alumni Edition)</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>ProQuest SciTech Collection</collection><collection>ProQuest Technology Collection</collection><collection>ProQuest Central (Alumni) (purchase pre-March 2016)</collection><collection>Research Library (Alumni Edition)</collection><collection>Materials Science & Engineering Collection</collection><collection>ProQuest Central (Alumni Edition)</collection><collection>ProQuest Central UK/Ireland</collection><collection>ProQuest Central Essentials</collection><collection>ProQuest Central</collection><collection>Technology Collection</collection><collection>ProQuest One Community College</collection><collection>ProQuest Materials Science Collection</collection><collection>ProQuest Central Korea</collection><collection>Engineering Research Database</collection><collection>ProQuest Central Student</collection><collection>Research Library Prep</collection><collection>SciTech Premium Collection</collection><collection>Materials Research Database</collection><collection>Materials Science Database</collection><collection>Civil Engineering Abstracts</collection><collection>ProQuest Engineering Collection</collection><collection>Research Library</collection><collection>Science Database</collection><collection>Engineering Database</collection><collection>Research Library (Corporate)</collection><collection>Materials Science Collection</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>ProQuest Central China</collection><collection>Engineering Collection</collection><collection>ProQuest Central Basic</collection><jtitle>ACI materials journal</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Mendes, S.E.S</au><au>Oliveira, R.L.N</au><au>Cremonez, C</au><au>Pereira, E</au><au>Trentin, P.O</au><au>Medeiros-Junior, R.A</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Estimation of Electrical Resistivity of Concrete with Blast‑Furnace Slag</atitle><jtitle>ACI materials journal</jtitle><date>2021-07-01</date><risdate>2021</risdate><volume>118</volume><issue>4</issue><spage>27</spage><epage>37</epage><pages>27-37</pages><issn>0889-325X</issn><eissn>0889-325X</eissn><eissn>1944-737X</eissn><abstract>Blast-furnace slag (BFS) has been increasingly used in cement production and has shown great influence on the electrical resistivity of concrete. The objective of this paper is to compare the theoretical values of electrical resistivity obtained through a mathematical model with experimental values for concrete with BFS. Reference concrete mixtures with ordinary portland cement were also studied. Results indicate higher electrical resistivity and smaller porosity for concretes with CEMIII/A. The electrical resistivity of the CEM III/A concrete does not have a well-defined correlation with the water-binder ratio (w/b) or with the compressive strength, unlike CEM I concretes. The correlation between calculated and experimental resistivity requires a correction factor for the CEM III/A concretes. In this study, the correction factor was obtained empirically by reducing the theoretical tortuosity of concrete by 15%. Therefore, the model should be used in cements with BFS with the application of a correction factor. Keywords: durability; electrical resistivity; models; nondestructive testing; porosimetry.</abstract><cop>Farmington Hills</cop><pub>American Concrete Institute</pub><doi>10.14359/51732597</doi><tpages>11</tpages></addata></record> |
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| source | American Concrete Institute Online Journal Archives |
| subjects | Blast furnace practice Blast furnace slags Cement Compressive strength Concrete Corrosion Electric properties Electric resistance Electrical resistivity Electrodes Evaluation Hydration Mathematical models Measurement techniques Permeability Portland cements Slag Tortuosity |
| title | Estimation of Electrical Resistivity of Concrete with Blast‑Furnace Slag |
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