Strengthening Concrete Structures using Mineral Based Composites
2013 (English)In: Proceedings of the 11th International Symposium on Fiber Reinforced Polymer for Reinforced Concrete Structures / [ed] Joaquim Barros; José Sena-Cruz, Universidade do Minho , 2013Conference paper (Refereed)
During the last two decades, strengthening concrete structures with epoxy bonded carbon fiber reinforced polymers (CFRP) has 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 security 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 fibers bonded to the surface using a mineral based bonding agent. This study examines the cracking behavior 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
Universidade do Minho , 2013.
CFRP, Grid, Mortar, Concrete, Beams, Strengthening, Shear, Engineering mechanics - Construction engineering
Teknisk mekanik - Konstruktionsteknik
Research subject Structural Engineering
IdentifiersURN: urn:nbn:se:ltu:diva-37848Local ID: bfdecd3d-d390-429e-8c78-9a6ebea832f3ISBN: 978-972-8692-84-1OAI: oai:DiVA.org:ltu-37848DiVA: diva2:1011346
International Symposium on Fiber Reinforced Polymer for Reinforced Concrete Structures : 26/06/2013 - 28/06/2013
Godkänd; 2013; 20131113 (gabsas)2016-10-032016-10-03Bibliographically approved