White Portland cement is made from raw materials containing little or no iron or manganese, the substances that give conventional cement its gray color. So the secret of the White cement is raw material. Apart from that only whitest chalk ..
Limestone (CaCO3) in 3 parts, and Clay in 1part are the raw material to make cement. These are mixed, grinded and water is added to make “slurry”. This slurry is heated to 1400-1500°C in rotary kiln. At 1000°C, the CaCO3 ..
Portland Cement was discovered by Joseph Aspdin in 1824. He called it Portland cement because what he discovered resembled the limestone found in Portland. Historical Facts In 1904, a small cement factory South India Industrial Ltd. was established in Madras ..
Petroleum, Chemicals & Petrochemical Investment Regions (PCPIRs) policy was launched in 2007 to promote investment in Petroleum and Petrochemical sector. Salient Features of PCPIR Policy PCPIR is a delineated area of around 250 sq km for setting up manufacturing facilities for ..
The NDA government had proposed to develop a National Food Grid. The idea first came forward in July 2014 as an announcement by the food processing industries minister Harsimrat Kaur Badal. In December 2014, the minister launched first ever such ..
Not only food processing industry but for any kind of business, there are two different kinds of linkages between the economic activities viz. backward linkages and forward linkages. For an industry, backward linkages are directed towards suppliers; while the forward ..