Bharathi PPC Grade Cement

Bharathi PPC Grade Cement

Bharati Cement – Portland Puzzolana Cement (PPC) is 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

PHYSICAL AND CHEMICAL PROPERTIES OF BHARATHI CEMENT PPC

Chemical Properties

Requirements as Per ISI 1489

Bharathi PPC

Loss on ignition (%)

5 maximum

1.80

Sulphur Anhydride SO3 (%)

3 maximum

2.00

Magnesia (%)

6 maximum

1.40

Insoluble residue (%)

X+4 (100-X)/100

22

Chloride (%)

0.1 maximum

0.001

Physical properties

Fineness (sqm/kg)

300 minimum

350

Soundness (mm)

Le-chatlier method

10mm (maximum)

1.50

Autoclave (%)

0.8 %

0.05

Setting Time

Initial (minimum)

30 minutes

160+or-20

Final (maximum)

600 minutes

260+or-20

Compressive Strength (Mpa)

3 days

16 (minimum)

34+or-3

7 days

22 (minimum)

43+or-3

28 days

33 (minimum)

62+or-3

In addition to this, Bharati Cement Corporation Private Limited also produces OPC 43, 53 and PSC