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TREATMENT TO
TERRACE / PODIUM SLAB:
The waterproofing system to be
used shall be Formak 629 Liquid
Applied Waterproofing System.
The system shall be single
component ready-mixed
heavy-bodied polyisoprene
waterproofing membrane
consisting of three layers, with
a nominal thickness of 0.8mm
minimum. The reinforcement if
used, shall be either 225gsm or
300gsm emulsion bond chopped
strand fibre-glass mat. Formak
629 shall be flexible and passes
the 3mm mandrel, and shall be
able to bridge hairline and
minor cracks. When Formak 629 is
not reinforced, it shall have at
least 500% elongation. At all
detailings like pipe
protrusions,
rain-water-down-pipes, edges and
corners, application of the
Formak 629 system shall be
sufficiently dressed up and
reinforced with fibre-glass
reinforcement. Upon completion
of the application of the Formak
629 system, the entire surface
shall be checked for uniformity
to ensure proper application of
the system.
Cleaning the surface for
treatment by removing dust, dirt
etc by wire brushing & water
jetting. Providing and carrying
out FORMAK 629 polyisoprene
based waterproofing system in
one coat of primer and two coats
of FORMAK 629 to slab in two
coats brush applied and
reinforcing with chopped strand
fiber glass mat at upturns and
around detailings.
Cleaning the surface for
treatment by removing dust, dirt
etc by wire brushing & water
jetting. Providing and carrying
out FORMAK 629 polyisoprene
based waterproofing system in
one coat of primer and two coats
of FORMAK 629 to walls upto 0.30
mtr from slab in two coats brush
applied and reinforcing with
chopped strand fiber glass mat
at upturns and around
detailings. |
TERRACE/PODIUMS
All construction joints, honey
combs, cold joints, after
casting shall be treated by
hacking open the affected area
to sound concrete, fixing
nozzles and grouting the same,
under pressure with cement
slurry mixed with plasticizer,
and non shrink additive.