Source:http://linkedlifedata.com/resource/pubmed/id/16814349
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| Predicate | Object |
|---|---|
| rdf:type | |
| lifeskim:mentions | |
| pubmed:dateCreated |
2007-1-1
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| pubmed:abstractText |
Degradation of concrete structures located in high humidity atmospheres or under flowing water is a very important problem. In this study, a method for ultrasonic non-destructive characterization in aged mortar is presented. The proposed method makes a prediction of the behaviour of aged mortar accomplished with a three phase micromechanical model using ultrasonic measurements. Aging mortar was accelerated by immersing the probes in ammonium nitrate solution. Both destructive and non-destructive characterization of mortar was performed. Destructive tests of porosity were performed using a vacuum saturation method and non-destructive characterization was carried out using ultrasonic velocities. Aging experiments show that mortar degradation not only involves a porosity increase, but also microstructural changes in the cement matrix. Experimental results show that the estimated porosity using the proposed non-destructive methodology had a comparable performance to classical destructive techniques.
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| pubmed:language |
eng
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| pubmed:journal | |
| pubmed:status |
PubMed-not-MEDLINE
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| pubmed:month |
Dec
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| pubmed:issn |
1874-9968
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| pubmed:author | |
| pubmed:issnType |
Electronic
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| pubmed:day |
22
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| pubmed:volume |
44 Suppl 1
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| pubmed:owner |
NLM
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| pubmed:authorsComplete |
Y
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| pubmed:pagination |
e1007-11
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| pubmed:dateRevised |
2009-11-11
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| pubmed:year |
2006
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| pubmed:articleTitle |
Porosity estimation of aged mortar using a micromechanical model.
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| pubmed:affiliation |
Instituto de Automática Industrial, (CSIC) La Poveda, 28500 Arganda del Rey, Madrid, Spain. marga@iai.csic.es <marga@iai.csic.es>
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| pubmed:publicationType |
Journal Article
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