INTECIN   20395
INSTITUTO DE TECNOLOGIAS Y CIENCIAS DE LA INGENIERIA "HILARIO FERNANDEZ LONG"
Unidad Ejecutora - UE
artículos
Título:
Ribbed GFRP (glass fiber reinforced plastic) rebar embedded in concrete - an experimental study
Autor/es:
JUAN PABLO MORALES ARIAS; M. ESCOBAR; A. VAZQUEZ
Revista:
JOURNAL OF COMPOSITE MATERIALS
Editorial:
SAGE PUBLICATIONS LTD
Referencias:
Lugar: London; Año: 2012
ISSN:
0021-9983
Resumen:
The experimental program developed in this work aims at investigating
the bond behavior of glass fiber reinforced plastic
embedded in concrete. Different types of surface
treatment were applied to the smooth rods in order to enhance the bond
with
concrete. Firstly, the rods were machined using a
lathe and a grinding stone to create lugs with different configurations.
The experimental results indicate that the bond
strength is highest when the failure mode is a combination of two
mechanisms:
shearing off of the concrete lugs and that of the
FRP lugs. With regard to the variation of rib width, the friction and
interlock
forces have a greater influence on bond strength.
With respect to the height of the rib, the variation of internal
diameter
does not affect significantly the bond strength.
Secondly, the machined rods were coated with sand fixed with a thin
layer
of epoxy resin. The incorporation of the sand on
the surface increases the bond strength compared with the results
obtained
without sand.