Bharathi PPC

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 of ISI1489 part-1 (fly ash based) Bharati Cements PPC Values 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