SPRAYCRETE:
Shotcrete is a mortar or concrete that is pneumatically projected or
sprayed by a nozzle with high velocity on the prepared surface. The whole
system is also known as spraycrete.
TYPES OF SHOTCRETE:
There are basic two types of shotcreating processes
1. Dry-mix process and
2. Wet-mix process.
ADVANTAGES OF SHOTCRETE:
It is very useful and has great advantages over conventional concrete in
a new variety of construction and repair works.
1. Excellent bonding
in nature makes the concrete layers very strong.
2. It is more
economical than conventional concrete and requires less formwork.
3. The Concrete can be
applied by a nozzle from a safe distance.
DISADVANTAGES
OF SHOTCRETE:
1. The production cost
is very high.
2. Dusting problems.
3. So many wastages of
concrete.
APPLICATIONS:
1. Thin overhead
vertical or horizontal surfaces.
2. Curved or folded
sections like tunnels, canals, reservoirs, or swimming pools, and pre-stressed
tanks.
3. Stabilized rock
slopes.
4. Restoration and
repairing of old building and fire damaged structure.
5. Waterproofing walls
etc.