A mortar in general is a mixture of cement, sand and aggregate with requisite amount of water. To prepare Polymer cement mortar mix 1 kg. Polyalk EP, 5 kgs. fresh cement, 15 kgs. Quartz Sand (graded). This is same as using 1 bag of cement (of 50 kgs); 10 kgs Polyalk EP and 150 kgs of graded sand.
First dry mix cement and sand in a mixer. Separately mix Polyalk EP with the requisite quantity of water. Then add this water-polymer mix to the cement sand in a mixer and mix for 3 minutes at least. Use a mechanical mixer. The mortar is now ready for use.
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2 i) What is (a) Grout? (b) Polymer Cement Grout ?
a) Grout
A grout is a mixture of Cement and Water in a definite proportion depending on the type of job where it has to be used.
(b) Polymer Cement Grout
Polymer Cement Grout (PCG) is prepared by using 1 kg. Polyalk EP, 3 Kgs. Cement (fresh) and 2 kgs. water. Mix Polyalk EP and Water first and add this to the cement using a mechanical mixer till slurry of uniform consistency is formed. This is now ready for use.
2) ii) What should be the mix ratio to achieve efficient grouting ?
To achieve efficient grouting the mix ratio is :
1 kg.Polyalk EP
3 kgs. Cement (fresh) OPC
2 kgs. Water
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3. If water is scarce or not available how does one do curing ?
If water is scarce or not available one can do curing by applying concrete curing compound Sunpolicure SS on freshly de-shuttered concrete surface or fairly hardened plaster. After Sunpolicure is applied there is no need to wet concrete externally as a part of water curing.
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4. How does the deteriorated external plaster effect the interiors of flats ?
- Dismantle the external plaster, clean the surface of all loose
particles etc. and moisten the surface with water.
- Apply 1st coat of plaster 1:4 Cement Mortar with addition of 1.5
kg. Polyalk WP and 250 mls. of Sunpolicrete NGT per bag of
Cement.
- Apply second coat of plaster in 1:4 Cement Mortar with addition of
250 mls. Sunpolicrete NGT per bag of cement.
- Cure the plaster as usual.
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