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Analysis of tensile...
Analysis of tensile behavior of recycled aggregate concrete using acoustic emission technique
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- Williams Portal, Natalie (författare)
- RISE,Kemi och Tillämpad mekanik,RISE Research Institutes of Sweden,Bygg och Infrastruktur
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- Flansbjer, Mathias (författare)
- RISE,Kemi och Tillämpad mekanik,RISE Research Institutes of Sweden,Bygg och Infrastruktur
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- Carró‐Lopez, Diego (författare)
- Universidade da Coruña, Spain,University of A Coruña
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- Fernandez, Ignasi, 1984 (författare)
- Chalmers University of Technology, Sweden,Chalmers tekniska högskola
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(creator_code:org_t)
- 2020-12-28
- 2020
- Engelska.
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Ingår i: RILEM Technical Letters. - Bagneux, France : RILEM Publications SARL. - 2518-0231. ; 5, s. 131-140
- Relaterad länk:
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https://doi.org/10.2...
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https://urn.kb.se/re...
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https://doi.org/10.2...
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Abstract
Ämnesord
Stäng
- Recycled concrete aggregate (RCA) was processed from reinforced concrete edge beams sourced from a demolished bridge in Sweden. This material replaced different ratios of coarse aggregate in a benchmark concrete. The tensile behavior of the developed concrete mixes was characterized via monotonic and cyclic uniaxial tensile tests performed on notched cylinders. Such tensile tests allow for the quantification of the fracture energy and softening behavior of the concrete. Moreover, acoustic emission (AE) measurements were conducted in conjunction with the cyclic tests to characterize e.g. micro‐crack initiation and development, as well as crack localization. The tensile behavior of the various materials was found to be similar with minimal variation in the results. However, the softening behavior suggests that the RCA materials are slightly more brittle compared to both the mother and benchmark materials, which could be indicative of differences in the interface transition zones. The corresponding AE measurements also indicated similarities between the micro‐crack initiation and development for these mixes. It can be constituted that if the concrete used to produce RCA is of high quality and from one source, the resulting RAC will have adequate tensile properties with minimal variation, despite the aggregate replacement ratio. © The Author(s) 2020.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Samhällsbyggnadsteknik -- Infrastrukturteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Civil Engineering -- Infrastructure Engineering (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Materialteknik -- Annan materialteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering -- Other Materials Engineering (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Samhällsbyggnadsteknik -- Husbyggnad (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Civil Engineering -- Building Technologies (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Materialteknik -- Kompositmaterial och -teknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering -- Composite Science and Engineering (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Samhällsbyggnadsteknik -- Byggproduktion (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Civil Engineering -- Construction Management (hsv//eng)
Nyckelord
- Acoustic emission
- Recycled aggregate concrete
- Recycled aggregates
- Tensile behavior
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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