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Mineral based strengthening systems for upgrading RC Structures
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Structural and Construction Engineering.ORCID iD: 0000-0002-5154-7044
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Structural and Construction Engineering.ORCID iD: 0000-0001-7799-5809
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Structural and Construction Engineering.ORCID iD: 0000-0002-8682-876X
2012 (English)In: Fib symposium Stockholm 2012: concrete structures for sustainble community : proceedings / [ed] Dirch H. Bager; Johan Silfwerbrand, Stockholm: Swedish Conrete Association , 2012, p. 363-366Conference paper, Published paper (Refereed)
Abstract [en]

During the last two decades, strengthening concrete structures with epoxy bonded carbon fibre reinforced polymers (CFRP) have shown excellent results in increasing bearing capacity. However, there are some limitations with epoxy coated concrete surfaces, e.g.; low permeability which may provoke freeze/thaw problems, poor thermal compatibility to the concrete substrate which makes epoxy coating more sensitive to the surrounding temperature and regulations when it comes to the safety and health (allergic reactions) of applicators and third party users. In this respect, using mineral based composites (MBC) may overcome some of these challenges associated with epoxy bonded strengthening systems. MBC, in this context, refers to high strength fibres bonded to the surface using a mineral based bonding agent. This study is examining the cracking behaviour and strain development of shear MBC strengthened RC beams. The results show that using MBC as shear strengthening postpones the formation of macro-cracks and that a considerable strengthening effect is achieved by using MBC.

Place, publisher, year, edition, pages
Stockholm: Swedish Conrete Association , 2012. p. 363-366
National Category
Infrastructure Engineering
Research subject
Structural Engineering
Identifiers
URN: urn:nbn:se:ltu:diva-28614Scopus ID: 84883402478Local ID: 2785c18a-1552-40d1-ad5d-0d83aec14891ISBN: 9789198009811 (print)OAI: oai:DiVA.org:ltu-28614DiVA, id: diva2:1001816
Conference
FIB Symposium : Concrete Structures for Sustainable Community 11/06/2012 - 14/06/2012
Note
Godkänd; 2012; 20130913 (andbra)Available from: 2016-09-30 Created: 2016-09-30 Last updated: 2018-03-20Bibliographically approved

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Blanksvärd, ThomasTäljsten, BjörnSas, Gabriel

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