Portland Pozzolana Cement (PPC) is a premium composite cement produced from superior quality Narzi limestone, using next generation German Technology to meet international standards. The cement is manufactured by inter-grinding high quality clinker with carefully chosen, good quality High Reactive Silica (HRS). Which is collected from Electro Static precipitators (ESP) and contains high quality gypsum.
Hydration of blended cement
Ordinary Portland cement + Water → C-S-H Gel + Ca (OH) 2 (Alkali)
High Reactive Silica (HRS) + Alkali → Secondary Gel Formation
As a result of the above secondary hydration, pore refinement takes place, making the concrete more impermeable to sulphate and chloride attacks. This makes the concrete structure more durable.
Advantages
Low heat of hydration
Resistant to sulphate and chloride attacks
Resistance to alkali silica reaction
Reduction in water demand
Reduced bleeding due to high fineness of cement
Pore refinement leading to improved density of concrete
Applications
Mass concrete work
Marine works
Residential and commercial high rise buildings
Industrial structures
Suitable for wide range of applications as a substitute for OPC.
| Chemical Properties | Requirements of IS 1489 Part 1 -1991 (Fly Ash Based) | PPC Values |
|---|
| Loss in Ignition (%) |
5 max |
1.80 |
| Sulphuric Anhydride SO3 (%) |
3 max |
2.00 |
| Magnesia (%) |
6 max |
1.40 |
| Insoluble Residue (%) |
X+(100-X)/100 |
22 |
| Chloride (%) |
0.1 max |
0.001 |
| Physical Properties |
| Fineness (m2/kg) |
300 min |
350 |
| Soundness |
| Lechatlier Method (min) |
10 max |
1.50 |
| Autoclave (%) |
0.8 max |
0.05 |
| Setting Time |
| Initial (min) |
30 mins |
160 +/- 20 |
| Final (max) |
600 mins |
260 +/-20 |
| Compressive Strength(MPA) |
| 3 Days |
16 (min) |
34 +/-3 |
| 7 Days |
22 (min) |
43 +/-3 |
| 28 Days |
33 (min) |
60 +/-3 |
Portland Slag Cement (PSC) is a premium composite cement produced from superior quality Narzi limestone, using next generation German technology to meet international standards. Slag cement begins in an iron blast furnace. Carefully controlled amount of iron ore, along with limestone or dolomite are fed into a blast furnace and heated to 2,700°F. When molten, the iron is tapped for steel production and the slag is diverted to the granulator. Here, the slag is rapidly quenched with large quantities of water.
The process minimizes crystallization and forms granulated slag, which is composed principally of calcium aluminosilicate of lime, which has a glassy form. Formation of this glass provides slag cement with its cementitious properties. At this point, the slag possesses the consistency of fine sand. It is then dewatered and dried. Finally, the slag is ground to a fine powder and becomes slag cement, or it is inter-ground with Portland cement clinker to make a blended cement.
Advantages
Improved Workability
Improved Resistance to chemical attack
Reduced Permeability
Improved Strength
Environment Friendly
Easier Finish
Higher Compressive and Flexural Strengths
Protection against Chloride and Sulphate attack
Reduces heat of hydration
Better cohesive mix
High Carbonation Resistance
Highly resistant to alkali aggregate reaction
Protection of Reinforcement
Applications
Residential, Commercial and Industrial Projects
Dams and other mass concrete works
Water Retaining Structures
Concrete Roads and Flyovers
Marine Constructions
Pre-cast Concrete Products
Foundations and Pile Construction
| Chemical Properties | Requirements of IS: 455 - 2015 | PSC Values |
|---|
| Magnesia (MgO) (%) |
10 max |
4.18 |
| Insoluble Residue (%) |
4 max |
1.13 |
| Sulphur Trioxide (SO3) (%) |
3 max |
2.00 |
| Sulphide Sulphur (S) (%) |
1.5 max |
0.50 |
| Loss on Ignition (%) |
5 max |
2.00 |
| Total Chloride (CI) (%) |
0.1 max |
0.005 |
| Physical Properties |
| Fineness (m2/kg) |
225 min |
330 |
| Soundness |
| Lechatlier Method (min) |
10 max |
1.00 |
| Autoclave (%) |
0.8 max |
0.03 |
| Setting Time |
| Initial (min) |
Not <30 |
200 |
| Final (mins) |
Not >600 |
290 |
| Compressive Strength |
| 3 Days |
16 (min) |
28 |
| 7 Days |
22 (min) |
38 |
| 28 Days |
33 (min) & 58 (max) |
58 |
Ordinary Portland Cement (OPC) 43 Grade is a premium quality cement manufactured from world renowned Narzi limestone. Made using next generation German Technology, the 43 Grade cement develops high early strength as well as high ultimate strength.
Advantages
Superior quality ensures substantial savings in cement consumption
Development of very high compressive strength in early stages helps in early de-shuttering
Superior resistance to sulphate attack due to less C3a content
Low alkali content in cement provides protection against alkali aggregate reaction
High fineness results in better workability enduring dense, durable concrete
High early strength facilitates speedy construction
Applications
Suitable for residential, commercial, industrial structures, bridges and dams, highways, high-rise buildings, runways etc.
Pre-stressed concrete
Recommended for all types of RCC structures, concrete blocks, electric poles, paver blocks etc.
| Chemical Properties | Requirements of 269 -2015 | OPC 43 Values |
|---|
| Lime Saturation Factor |
0.66 - 1.02 |
0.90 |
| Loss in Ignition (%) |
5 max |
2.00 |
| Sulphuric Anhydride SO3 (%) |
3.5 max |
1.80 |
| Magnesia (%) |
6 max |
1.10 |
| Insoluble Residue (%) |
5 max |
1.50 |
| Chloride (%) |
0.1 max |
0.006 |
| Physical Properties |
| Fineness (m2/kg) |
225 min |
320 |
| Soundness |
| Lechatlier Method (min) |
10 max |
10 |
| Autoclave (%) |
0.8 max |
0.05 |
| Setting Time |
| Initial (min) |
30 mins |
180 |
| Final (max) |
600 mins |
280 |
| Compressive Strength |
| 3 Days |
23 (min) |
33 |
| 7 Days |
33 (min) |
43 |
| 28 Days |
43 (min) & 58 (max) |
56 |
Ordinary Portland Cement (OPC) 53 Grade which surpasses the requirements of IS12269-1987 Grade. It is produced by inter grinding of high grade clinker (with high C3S content) and right quality gypsum in predetermined proportions.
It is recognized for its high early strength and excellent ultimate strength because of its optimum particle size distribution, superior crystalline structure and balanced phase composition and hence widely used and suitable for speedy construction, durable concrete and economic concrete mix designs.
Advantages
Superior quality ensures substantial savings in cement consumption
Development of very high compressive strength in early stages helps in early de-shuttering
Superior resistance to sulphate attack due to less C3a content
Durable Concrete
Feasible for economical concrete mix designs
Low percentage of alkalies, chlorides, magnesia and free lime results in longer life of concrete structures.
Applications
Suitable for Residential, Commercial, Industrial Structures, Bridges and Dams, Highways, high-rise Buildings, Runways etc.
Recommended for all types of RCC Structures, Concrete Blocks, Electric Poles, and Paver Blocks Etc.
| Chemical Properties | Requirements of IS 12269 -2015 | OPC 53 Values |
|---|
| Lime Saturation Factor |
0.8 - 1.02 |
0.90 |
| Loss in Ignition (%) |
4 max |
2.00 |
| Sulphuric Anhydride SO (%) |
3.5 max |
1.80 |
| Magnesia (%) |
6 max |
1.10 |
| Insoluble Residue (%) |
4 max |
1.50 |
| Chloride (%) |
0.1 max |
0.005 |
| Physical Properties |
| Fineness (m2/kg) |
225 min |
320 |
| Soundness |
| Lechatlier Method (min) |
10 max |
10 |
| Autoclave (%) |
0.8 max |
0.05 |
| Setting Time |
| Initial (min) |
30 mins |
160 +/- 20 |
| Final (max) |
600 mins |
260 +/-20 |
| Compressive Strength |
| 3 Days |
27 (max) |
39 +/-3 |
| 7 Days |
37 (max) |
49 +/-3 |
| 28 Days |
53 (max) |
65 +/-3 |
Products 
Officers