POLYALK EP
POLYALK EP strengthens the
microstructure of cement based hydrated products by forming a polymeric spatial
network in its voids, complementing the host’s – the cement paste –
characteristics. The resultant composite has vastly improved tensile and
flexural properties and also a modified pore system of very low porosity and
permeability. This versatile co-polymer dispersion is in liquid form. Suitable for
repair mortars and grouts, rendering, floor screeds etc.
Uses
Repair of RCC Members, Water
Tanks, Industrial Floors
Finish Plastering for Bricks
& Block work
Heritage Structures,
Reconstructed stone
Staircase steps retrofitting,
Foundation Grouting
Pipe Joints (both) new & repairs
Properties
|
Tensile strength 28 D
|
Increase by 50 to 60%
|
|
Flexural strength 28 D
|
Increase by 60 to 90%
|
|
Pull out strength
|
Increase by 100%
|
|
Chemical Resistance (Mild
acids, alkalies, sulphates, sugars)
|
Good
|
|
Resistance to Carbonation
|
Good
|
|
Adhesion (to concrete, brick,
steel, glass, ceramics)
|
Good
|
Use of POLYALK EP results in a
lower water content and consequent lower water cement ratio. This brings in
increased compressive strength, reduces bleeding and segregation.
Instructions for use
Polyalk is suitable for a
variety of applications. It is used for making mortars, grouts and bonding
slurry. Details of these are as follows:
To prepare a polymer based
bonding coat, take 0.5 part cement and 1 part POLYALKEP EP (by weight) and mix
thoroughly. Use a mechanical mixer preferably. The materials thus mixed, form a
thick slurry of a consistency easily applicable by brush. The slurry thus
prepared is ready for use as a bonding material. The surface on which the
bonding coat is to be applied, has to be cleaned with a water jet approximately
24 hours prior to application. This will help in making the substrata, slightly
moist. After application of the slurry on the requisite surface, place the next
screed or mortar etc. that is to come over it. (“wet on wet” application)
Note
- Do not use any water in preparing the slurry.
- The cement to be used should be fresh and OPC only.
Coverage
35 to 40 sqft per liter of POLYALKEP
EP
POLYMER MODIFIED CEMENT MORTAR
(PMCM)
To prepare a composite mortar
of Polymer and cement base, use 1 kg POLYALKEP EP, 5 kg (fresh) Cement, 15 kg
Quartz sand (graded). This is same as using 1 bag of cement (of 50 kg), 10 kg POLYALKEP
EP and 150 kgs of graded sand. (Polymer: Cement: Quartz Sand ratio is 1:5:15)
First dry mix the cement and sand in a mixer. Separately mix POLYALKEP EP with
the requisite quantity of water. Then add this water-polymer mix to the
cement-sand in the mixer and mix for 3 minutes at least. A mechanical mixer
with a specially designed stirrer can be conveniently used. The mortar is now
ready for use.
YIELD
Above 21 kgs mixture yields
0.01 Cubic Mtr or 10 ltrs.
POLYMER CEMENT GROUT (PCG)
To prepare a polymer based
cement grout, use 1 kg POLYALKEP EP, 3 kg Cement (fresh) and 2 kg water. Mix POLYALKEP
EP and water first and add this to the cement using a mechanical mixer till a
slurry of uniform consistency is formed. This is now ready for use. Depending upon
various needs of grout application the above proportion of POLYALKEP EP could
be different. (Important: see item 2 of ‘Note’ below)
POLYMER RICH CEMENT MORTAR
(PRCM)
To prepare this mortar, use 2
kg POLYALKEP EP, 5 kg cement (fresh) and 15 kg quartz sand (graded). Mix the
three ingredients (without addition of any water) preferably in a mechanical
mixer, till a soft mix of uniform consistency is formed. This is now ready for
use.
A mix with this proportion has
superior strength and other characteristics which makes it suitable for filling
cracks effectively.
YIELD
Above 22 kg mix will yield 0.01
Cubic Mtr or 10 ltrs.
Precautions
Prepare only as much quantity
of material as can be used in 30 minutes. Use fresh cement only.
Curing
Curing is best achieved by a
fine spray of water. Curing should begin after 24 hours of application &
continue for at least three days.
Note
- Clean all tools with water immediately after use.
- The mixer consists of a shaft with spiral blades, fitted in place of the drill-bit of the hand held electric drill.
- The mixes given above are by way of general recommendations.
Packing
20 kg, 5 kg, 1 kg
Shelf life
Twelve months when stored in
original closed container.
