Open AccessTECHNOLOGICAL-STRUCTURAL PECULIARITIES OF REINFORCED CONCRETE STRUCTURES STRENGTHENED WITH CARBON FIBER-REINFORCED POLYMER
Author(s) -
Juozas Valivonis,
Gediminas Marčiukaitis
Publication year - 2006
Publication title -
technological and economic development of economy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.634
H-Index - 47
eISSN - 2029-4921
pISSN - 2029-4913
DOI - 10.3846/13928619.2006.9637726
Subject(s) - materials science , composite material , rigidity (electromagnetism) , glue , carbon fiber reinforced polymer , reinforcement , polymer , reinforced concrete , fibre reinforced plastic , deformation (meteorology)
Carbon fiber‐reinforced polymer is used for strengthening of reinforced concrete structures with externally bonded reinforcement. This fiber has more strength and better deformation properties than steel. During glueing, the glue is absorbed in the surface layer of concrete. It changes physical and mechanical properties of concrete. This effect depends on the structure of concrete. Experimental investigations sustained absorbing of glue and strengthening of concrete. The rigidity between concrete and carbon fiber polymer layer is smaller in cracked zones. Shear deformations decrease rigidity and strength in a contact zone.The authors methods were investigated in fastening carbon fiber‐reinforced polymer to concrete. The efficiency of these methods was definited. Theoretical results are compared with experimental results.