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Investigation of the possibility of estimating concrete strength by porosity measurements

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dc.contributor.author Kolias, S en
dc.date.accessioned 2014-03-01T01:09:57Z
dc.date.available 2014-03-01T01:09:57Z
dc.date.issued 1994 en
dc.identifier.issn 0025-5432 en
dc.identifier.uri https://dspace.lib.ntua.gr/xmlui/handle/123456789/11253
dc.subject Correlation Coefficient en
dc.subject.classification Construction & Building Technology en
dc.subject.classification Engineering, Civil en
dc.subject.classification Materials Science, Multidisciplinary en
dc.subject.other Cement en
dc.subject.other Lab Tests en
dc.subject.other Mortar en
dc.subject.other Porosity en
dc.subject.other Strength en
dc.subject.other Cements en
dc.subject.other Concrete aggregates en
dc.subject.other Correlation methods en
dc.subject.other Mechanical variables measurement en
dc.subject.other Mortar en
dc.subject.other Porosity en
dc.subject.other Strength of materials en
dc.subject.other Calculated average paste porosity en
dc.subject.other Cube strength en
dc.subject.other Total water porosity measurement en
dc.subject.other Concrete testing en
dc.title Investigation of the possibility of estimating concrete strength by porosity measurements en
heal.type journalArticle en
heal.identifier.primary 10.1007/BF02473043 en
heal.identifier.secondary http://dx.doi.org/10.1007/BF02473043 en
heal.language English en
heal.publicationDate 1994 en
heal.abstract The possibility of estimating concrete or mortar strength by measuring the total water porosity by a very simple method is investigated. Cube strengths of mortar and concrete specimens are correlated with water porosity measured from 'intact' pieces taken from the failure cones of the crushed cubes. It is shown that it is not possible to acquire a satisfactory correlation of strength and the measured total water porosity of the mortar or concrete mix. However, a very promising correlation (correlation coefficient R>93%) is obtained if the 'calculated average paste porosity' Pp is substituted for the measured total water porosity of the mix Pm . Pp can be determined from the measured porosity Pm of the mix, the porosity of the aggregates and the volumetric proportions of the constituents. For the range of strengths investigated, it can be inferred that the strength class of a cement (OPC 35 or OPC 45) does not significantly influence the correlation, but a slightly different correlation seems to exist for pozzolanic cements. © 1994 RILEM. en
heal.publisher Kluwer Academic Publishers en
heal.journalName Materials and Structures en
dc.identifier.doi 10.1007/BF02473043 en
dc.identifier.isi ISI:A1994NU03000003 en
dc.identifier.volume 27 en
dc.identifier.issue 5 en
dc.identifier.spage 265 en
dc.identifier.epage 272 en


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