Tiles From Granite Slurry (New upcoming technology)
India has got best granite deposits in the world. It accounts for over 20% of total Granite reserve of the world. Total Granite reserve is in India is about 42,916 million cubic meters. Granite slurry is the waste generated during cutting and polishing of stone.
Physical and Chemical Properties of Granite Slurry:
Color = Grey Specific Gravity = 2.60 Fineness =< 100 micron
|
S. No |
Constituents |
Percentage (%) |
|
1 |
Silica (SiO2) |
37.49 |
|
2 |
Magnesium (MgO) |
7.86 |
|
3 |
Calcium (CaO) |
7.84 |
|
4 |
Alumina (Al2O3) |
15.36 |
|
5 |
Loss on Ignition |
22.84 |
Properties of slurry blended floor tile:
|
S. No |
Test Property |
Observed Value |
Permissible value as per Indian Standard |
|
1 |
Water absorption |
5.75% |
6% |
|
2 |
Breaking load under flexural strength |
245 kg |
i) 200 kg for residential pathway/public/pedestrian pathways. ii) 300kg for residential driveways, light vehicles, public pedestrian and light vehicle. |
|
3 |
Dimensional tolerance of thickness |
0.3 mm (Mean of 3 Nos) |
+2mm |
Details and cost of plant and machinery:
Indicative costing of plant & machinery, for producing floor/wall tiles & pavers blocks, with a capacity of 2000 sq ft/day:
|
Cost of plant & machinery |
Rs.7.00 lakh |
|
Cost of a set of Moulds |
Rs.2.00 lakh |
|
Land & building of 3000 sq ft |
Including shed |
|
Working capital |
Rs.2.00 lakh |
|
Electrical energy-approx |
15 HP |
|
Water for moulds cleaning |
5000 lt/day |
The technology is jointly developed by BMTPC & APTDC. Council is exploring the possibilities to establish a pilot plant for dissemination and transfer of this technology near Granite processing industry.