The mix
design has been prepared
and submitted for approval
keeping in view the
following factors.
Water Content (Water
Cement Ratio)
The water
content has been kept as
low as possible as adding
more water reduces the
strength of GRC units.
Water reducing and super
plasticiser Rheubuild 2000
M will be used @ 0.5%. The
data sheet is already
submitted for your
approval.
Adequate and Appropriate
Type of Glass-fibre
Cem-fil
61/1 roving with continuos
filament fibres will be
used instead of chopped
strand @ 3.6% of mix. It
is not advisable to use
less than 3% for adequate
mechanical properties. The
data sheet for cem-file
continuos fibre roving is
already submitted for
approval, along-with the
mix design.
Sand/Cement Ratio
Higher
cement/sand ratios as
recommended will be used @
1:1 to reduce shrinkage in
the panels.
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