A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
In the last few years, due to their high specific strength/stiffness, design and placement flexibility as well as resistance to corrosion, the application of polymer composites in the rehabilitation of concrete structures has become very attractive. E-glass woven roving (WR), combined with chopped strand mat (CSM), glass fibre tape (GFIF) and a vinyl-ester resin, was used to restrain concrete columns using a wrapping procedure with different architectures. The results indicate that great reinforcing efficiency can be obtained through tailoring the architectures of composite jackets. An experimental study on the retrofitting efficiency of damaged concrete columns was also conducted, using a group of damaged concrete columns wrapped with the composite jackets. Use of E-glass fibres and the vinyl-ester resin to reinforce concrete columns externally is effective, with a low raw materials cost. Reinforcing efficiency depends greatly on the composite architecture, with a hybrid system of roving cloth, chopped strand mat, and glass fibre tape showing highest level of enhancement. Wrapping deteriorated or damaged concrete columns with WR/CSM glass fibre composite jackets can be an effective way to restore the load-carrying capacity and to greatly increase the structural integrity.
In the last few years, due to their high specific strength/stiffness, design and placement flexibility as well as resistance to corrosion, the application of polymer composites in the rehabilitation of concrete structures has become very attractive. E-glass woven roving (WR), combined with chopped strand mat (CSM), glass fibre tape (GFIF) and a vinyl-ester resin, was used to restrain concrete columns using a wrapping procedure with different architectures. The results indicate that great reinforcing efficiency can be obtained through tailoring the architectures of composite jackets. An experimental study on the retrofitting efficiency of damaged concrete columns was also conducted, using a group of damaged concrete columns wrapped with the composite jackets. Use of E-glass fibres and the vinyl-ester resin to reinforce concrete columns externally is effective, with a low raw materials cost. Reinforcing efficiency depends greatly on the composite architecture, with a hybrid system of roving cloth, chopped strand mat, and glass fibre tape showing highest level of enhancement. Wrapping deteriorated or damaged concrete columns with WR/CSM glass fibre composite jackets can be an effective way to restore the load-carrying capacity and to greatly increase the structural integrity.
Strengthening efficiency of E-glass fibre composite jackets of different architectures for concrete columns
Verstärkende Ummantelung aus Glasfasergewebe und Glasschnittmatten für beschädigte Betonsäulen als Maßnahme der Altbausanierung
Applied Composite Materials ; 5 ; 109-122
1998
14 Seiten, 10 Bilder, 6 Tabellen, 11 Quellen
Article (Journal)
English
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