Ultratech Cements
UltraTech is India's largest exporter of cement clinker. The company's production facilities are spread across five integrated plants, five grinding units, and three terminals - two in India and one in Sri Lanka. All the plants have ISO 9001 certification, and all but one have ISO 14001 certification. While two of the plants have already received OSHAS 18001 certification, the process is underway for the remaining three. The company exports over 2.5 million tonnes per annum, which is about 30 per cent of the country's total exports. The export market comprises of countries around the Indian Ocean, Africa, Europe and the Middle East. Export is a thrust area in the company's strategy for growth.
Ordinary Portland cement
Ordinary portland cement is the most commonly used cement for a wide range of applications. These applications cover dry-lean mixes, general-purpose ready-mixes, and even high strength pre-cast and pre-stressed concrete.
Portland Pozzolana cement
Portland pozzolana cement is ordinary portland cement blended with pozzolanic materials (power-station fly ash, burnt clays, ash from burnt plant material or silicious earths), either together or separately. Portland clinker is ground with gypsum and pozzolanic materials which, though they do not have cementing properties in themselves, combine chemically with portland cement in the presence of water to form extra strong cementing material which resists wet cracking, thermal cracking and has a high degree of cohesion and workability in concrete and mortar.