Portland slag Cement is made by blending Granulated Blast Furnace slag with clinker. This material complies with IS : 455 and has the following test specifications –
Tests Requirement as per IS : 455
(Portland Slag Cement)
Test Result of
RISHI GOLD
CHEMICAL Loss on Ignition Not more than 5 % 2.21 %
Calcium Oxide No Parameters 56.76  %
Magnesium Oxide Not more than 6 % 4.10 %
Insoluble Residue Less than 4 % 1.90 %
Sulphur Trioxide Less than 3.00 % 2.10 %
 
PHYSICAL a) Initial Setting Time Not less than 30 minutes 65 minutes
b) Final Setting Time Less than 600 minutes 185 minutes
c) Le Chatilier’s Expansion Less than 10 mm. 2 mm.
d) Fineness Not less than 2250 cm² /gm. 3750 cm² /gm.
e) Compressive Strength
    3 Days Minimum 160 kg /cm² 210 kg /cm²
    7 Days Minimum 220 kg /cm² 358 kg /cm²
    28 Days Minimum 330 kg /cm² 481 kg /cm²
Product Application Guide
Product Ordinary Portland Cement (OPC)IS : 269
“RISHI GOLD”
Portland Slag Cement (PSC)IS : 455
“RISHI SUPER”
Red Oxide Cement
IS : 455
“RISHI ULTRA”
Applications
Residential Complexes
Commercial Complexes  
Concrete Roads    
Flooring Tiles
Masonry Works
Mass Concrete Works  
Repairing Works  
Building near Seacoast    
Foundations  
Anti-Rusting    
Plaster Coloring    
Mixing Proportions
  Mix Batch quantities Approx
batch output
(ltr)
Cement
(50kg bag)
Sand (ltr) Stone (ltr)
Most ordinary concrete 1:2:4 ½ bag 35 70 85
Foundations 1:3:6 1/3 bag 35 70 78
Rough mass concrete 1:4:8 ¼ bag 35 70 78
Watertight floors, tank, spits, etc 1:1½:3 2/3 bag 35 70 85
for 35 liters use approx 6 No 2 shovels; 1m3 = 1,000 liters
General Purpose Mortar Mortar for High Strength Concrete
4 x Building Sand Plus
1 x Cement
2 x Building Sand plus
2 x Grit Sand plus
1 x cement
   
Foundation Concrete Mix Ordinary Concrete Mix
6 x Gravel plus
3 x Grit Sand plus
1 x Cement
4 x Gravel plus
2 x Grit Sand plus
1 x Cement