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Effect of size and stacking
of glass fibers on the mechanical properties of the fiber-reinforced-mortars
(FRMs)
Saidi M.*, Safi
B., Benmounah A. and Aribi C.
Laboratory
of Mineral and Composite Materials L.M.M.C, Department of
Materials Engineering, F.S.I/University of Boumerdes,
Algeria.
*Corresponding author. E-mail:
said_mouh2011@yahoo.fr.
Accepted 28 February, 2011. |
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In modern day construction practice, repair and
rehabilitation of structures have taken a prominent role.
Indeed, the recent trend of rehabilitating and strengthening
unreinforced masonry reinforced with glass fibers. In this
paper, the use of fiber-reinforced-mortars (FRMs) is
proposed for construction rehabilitation and reconstruction
applications. A single type of fiber (glass fiber) with
different length is considered; short, long and mixed.
Several specimens mortars reinforced with fibers are tested
in compression and flexure. Also, the stack and the
microstructure of the interface glass fibers-matrix
cementitious of the reinforced specimen, was examined. The
results showed a remarkable increase in the mechanical
resistances (50%), an important reduction of the brittleness
of the reinforced mortars (lengthening higher than 40%) and
a good ductility. That made it possible to increase
considerably the safety of our constructions with a better
esthetic aspect.
Key words: Mortar, reinforcement, glass fibers, stackings, lengthening,
mechanical properties. |
