Pozzolana Portland Cement derives its name from the volcanic ashes of the Pozzuoli volcano in Italy. These ashes are used in the manufacture of a kind of mortar which hardens under water.

Pozzolana Portland Cement is one of several types of cement which are used for special purposes. Pozzolanas are materials which, although they do not have cementing properties in themselves, will combine chemically with Portland cement in the presence of water to form strong cementing material.

Pozzolana materials include power-station fly ash, burnt clays, ash from burnt plant material and silicious earths. Tata Chemicals' power station produces waste fly ash, a raw material in the manufacture of Pozzolana cement.

The brand name for TCL's Pozzolana Portland Cement is Shudh Cement, an offering that has been going from strength to strength since its marketing structure was revamped and the product was re-launched in Gujarat in December 2001.

Since its re-launch, Shudh has made quick inroads in the Gujarat market to capture a 5-per cent market share, despite tough competition from well-entrenched players. Shudh was previously marketed through ACC under the TCL-ACC brand name, but, following the re-launch, TCL has taken control of the marketing of the brand.

The markets addressed by Shudh Cement are segmented as follows:

	Primary markets (Saurashtra, Kutch)
	Secondary markets (north Gujarat through central Gujarat)
	Tertiary markets (south Gujarat)

Specification: IS:1489 (part 1) 1991 ew

Specifications	Portland Pozzolana Cement: requirement of IS:1489 (part 1) 1991	Test results
Fineness (Cm2/gm) Specific surface	3,000 minimum	3,200 - 3,600
Setting time (minutes):
Initial	30 minimum	90 - 115
Final	600 maximum	180 - 215
Compressive strength (Kg/cm2) (Cement: sand mortar cubes)
3 days	160 minimum	290 - 350
7 days	220 minimum	390 - 450
28 days	330 minimum	470 - 550

High strength and proven durability are the salient features of Shudh Cement, which is a finely ground blend of high-quality clinker, marine gypsum and a Pozzolanic additive for high-lime reactivity. Shudh offers:

Shudh Cement is the ideal choice for all kinds of structures and construction work, such as residential and commercial buildings, industrial buildings and structures, dams, roads, machine foundations, pile foundations, etc.

Shudh far exceeds the quality norms and specifications set by the Bureau of Indian Standards. It is a superior product from TCL, positioned to provide customers with a trustworthy foundation for all their construction projects. The company has the ability to customise the supply of this quality product.

Packing: 50-kg PP bags.

For more information about this product or to place orders, please contact:
Kamal Garg at kgarg@tatachemicals.com