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Texture and bond at the interfacial zone between rock and sprayed concrete
KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Concrete Structures.
KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Concrete Structures.
2012 (English)In: fib Symposium 2012: Concrete Structures for Sustainable Community - Proceedings, 2012, 605-608 p.Conference paper, Published paper (Refereed)
Abstract [en]

Sprayed concrete differs from ordinary concrete through the application technique and the additions of accelerators that gives immediate stiffening. The bond between sprayed concrete and rock is an important property. This work has investigated the development of the microstructure in the interfacial zone and strength of the bond. The results show that the bond strength is related to the strength gain of the concrete. Before the acceleration period of the cement hydration the bond strength is very low. As regard the early development of the interfacial zone, it is in SEM possible to observe changes over time both before and after proper cement hydration.

Place, publisher, year, edition, pages
2012. 605-608 p.
Keyword [en]
Bond strength, Ettringite, Interfacial zone, Micro structure, Set accelerator, Sprayed concrete
National Category
Materials Engineering
Identifiers
URN: urn:nbn:se:kth:diva-131336Scopus ID: 2-s2.0-84883400150ISBN: 978-919800981-1 (print)OAI: oai:DiVA.org:kth-131336DiVA: diva2:656388
Conference
fib Symposium 2012: Concrete Structures for Sustainable Community; Stockholm; Sweden; 11 June 2012 through 14 June 2012
Note

QC 20131015

Available from: 2013-10-15 Created: 2013-10-14 Last updated: 2013-10-15Bibliographically approved

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  • apa
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  • Other locale
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Output format
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  • asciidoc
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