Glass fiber reinforced
composite materials consist of high strength glass fiber embedded in a
cementitious matrix. In this form, both fibers and matrix retain their physical
and chemical identities, yet they produce a combination of properties that can
not be achieved with either of the components acting alone. In general fibers
are the principal load-carrying members, while the surrounding matrix keeps
them in the desired locations and orientation, acting as a load transfer medium
between them, and protects them from environmental damage.”
GFRC is a form of
concrete that uses fine sand, cement, polymer (usually an acrylic polymer),
water, other admixtures and alkali-resistant (AR) glass fibers. Many mix
designs are freely available on various websites, but all share similarities in
ingredient proportions.
GFRC History and Application
GFRC was originally
developed in the 1940’s in Russia, but it wasn’t until the 1970’s that the
current form came into widespread use.
Commercially, GFRC is used
to make large, lightweight panels that are often used as façades. These panels
are considered non-structural, in that they are designed to support their own
weight plus seismic and wind loadings, much in the way glass window curtain
walls are designed. The panels are considered lightweight because of the
thinness of the material, not because GFRC concrete has a significantly lower
density than normal concrete. On average it weighs about the same as ordinary
concrete on a volume basis.
could you please increase your topics...that could help in preparing projects
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