The most widely used building materials worldwide are
cement as
well
as concrete
in construction
site, while these materials have well-known phenomenon which is
cracking
in concrete engineering.
Concrete
repairs are foreseeable to enhance its
service life and provide additional expenditure separate to the
building
cost; so it necessary to seal cracks
which occur due to drying shrinkage or exposed to external
factors.
Recently, the most promising healing
materials
that
can be applied for concrete
repairs are
alkali
activated
materials which have high efficiency
in dealing
with
crack propagation, while this
efficiency can be increased
by immersion in saturated lime solution or using fibers to heal the produced cracks or even suppress the crack formation. The current work focus on the formation alkali activated materials that exposed to artificial cracking then immersed in water, saturated lime, and using steel fiber as well as basalt fiber to examine their capability in healing the produced cracks. Results demonstrates the healing of the formed cracks with most of
the used techniques, while the most promising were those used steel fiber as well as basalt fiber where the
crack propagation were terminated and diminished.