Why Concrete needs curing: - Concrete needs to maintain the temperature at the time of heat of hydration. Without going much technically, when cement is mixed with water there is a chemical process and lots of heat is generated, and the hot gases are the reason for cracks, to maintain the temperature curing is done for its complete process. it lay a layer/film on the surface which does not allow its water to evaporate and additionally it makes the surface cool.
There are various methods of curing.
Sr. No |
Method |
Surface. |
|
1 |
Curing with water pipes |
Column and beams. |
|
2 |
Curing with the ponding method |
Slab and footings. |
|
3 |
Curing with Gunny bags |
Column, beams, and flooring. |
|
4 |
Plastic sheet |
Flooring and road. |
|
5 |
Curing compound |
All surface. |
|
The first Four methods are the common method and we see them in regular practices, but today we see a new method which is curing compounds. It is a very highly effective method.
Curing compounds are also of different types.
Sr. No. |
Methods |
Remarks |
1 |
Synthetic Resin compound |
Very costly |
2 |
Chlorinated rubber compound |
Very costly |
3 |
Acrylic compound |
Cheap and effective |
4 |
Wax compound |
Very costly |
|
|
|
Usage.
Sr. No |
Applicable are Curing Compound |
1 |
High ways |
2 |
PQC Roads |
3 |
Airport runways and Taxiway |
4 |
Hard Standing and Aprons |
5 |
Roof of concrete |
6 |
R.c.c Retaining walls |
7 |
Water Canals |
Packaging.
It’s come in 200 kg and 250 kg Drum.
Advantages of Curing Compound.
Sr. No |
Advantages |
1 |
Reduce the plastic cracks in concrete which occur incedingly |
2 |
To get the strength of the concrete of the desired level |
3 |
Low Shrinkage due to continuous moisture |
4 |
Due to the layer of compound, the cement dust does happen and it dust-free |
5 |
Frost resistance increase |
6 |
Water is saved in huge quantity |
Usage of the Material.
It's high depending on weather conditions, if it's too hot you will need more curing compound, and if it's low then less, however, 5 to 6.5 m2 per liter is considered in normal cases.
Major Company in production of Curing compound.
- Sika.
- Fosroc.
- Creeset.
- W. R. Meadows – Seal tight.
- Transhield.
- Master Builder.
- Euclid Chemical.
- Baumerk – Construction chemicals.
- Razon – innovative construction chemicals.
- Armstrong Chemical private limited.
Process of use curing compound.
As per the selection of Curing compound (with water or without water ) it has to be filled in a spraying container and in mist form, it has to be sprayed.
Equipment Required for Curing compound.
- Spray container.
- Cleaning tools.
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