GUNMIXAID
Guniting is often used to line
tunnels & other areas where a layer of overcoating with a cement sand mix
has to be done. Such a layer provides a durable and long lasting surface.
To improve the operation and
help reduce rebound losses as also to build up larger thickness, admixtures
termed “guniting-aids” are used.
GUNMIXAID is a proven for all
guniting or concrete spraying jobs, if
·
Accelerates hardening
·
Waterproofs the mix and makes the applied layer
more impermeable
·
Plasticizes the wet mix
GUNMIXAID is specially
formulated to suit most cement mortar mixes. The reactive constituents of the
product, combine with cement particles and result in accelerating the setting
and hardening process. The gunited layer very quickly becomes rock hard.
An advantage of the product is
that guniting rebound loss is reduced.
Instruction for use
GUNMIXAID is suitable for
guniting, when uses any general construction cement like OPC, PPC, PSC etc. GUNMIXAID
should be added to the mortar / concrete mix in the ratio of 1 to 6 percent by
cement weight, depending upon the desired rate of hardening. Age of the cement
and its characteristics, cement content, temperature etc. influence the rate of
hardening. In special circumstances the dosage can be as much as 10%
The admixture is to be added to
the DRY cement sand mix only and thoroughly mixed. No water should be added at
this stage.
Water should come in contact
only at the actual guniting stage that is at the nozzle. The mix when applied
on a surface has much quicker setting and hardening and this factor needs to be
kept in mind while job is executed.
Site trials are essential to
fix the parameters like dosage, it would best be begun by taking about 3%
admixtures addition and suitably increasing / decreasing the level till the
optimum setting time is obtained.
Cold and hot weather would call
for the usual precautions as for normal concretes.
Note: The product is alkaline
in nature. Suitable gloves and goggles etc. needs to be used in actual practice
when using the product.
Packing
25 kgs bag
Shelf life
Six months when stored in
original packing.
Storage
GUNMIXAID should be stored in
cool dry place in scaled condition.
