Texture and bond at the interfacial zone between rock and sprayed concrete
2012 (English)In: fib Symposium 2012: Concrete Structures for Sustainable Community - Proceedings, 2012, 605-608 p.Conference paper (Refereed)
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.
Bond strength, Ettringite, Interfacial zone, Micro structure, Set accelerator, Sprayed concrete
IdentifiersURN: urn:nbn:se:kth:diva-131336ScopusID: 2-s2.0-84883400150ISBN: 978-919800981-1OAI: oai:DiVA.org:kth-131336DiVA: diva2:656388
fib Symposium 2012: Concrete Structures for Sustainable Community; Stockholm; Sweden; 11 June 2012 through 14 June 2012
QC 201310152013-10-152013-10-142013-10-15Bibliographically approved