What is Phosphor-Gypsum?

About Phosphor-Gypsum:

• Phosphorus is a mineral critical to all life on Earth. As a requirement of all biological beings, it is a cornerstone of nutrition for plants, animals, and people.
• Phosphogypsum is a waste by-product from the processing of phosphate rock in plants producing phosphoric acid and phosphate fertilizers, such as superphosphate.
• It is used in agriculture for soil amendment or as fertilizer, as well as in the brick and cement industry, and road construction.

Key facts about NHAI

• It was constituted by an Act of Parliament in 1988 under the administrative control of the Ministry of Road Transport and Highways.
• NHAI has been set up as a Central Authority to develop, maintain and manage the National Highways entrusted to it by the Government of India.
• The Authority consists of a full-time Chairman and not more than five full-time Members and four part-time Members who are appointed by the Central Government.

Q1) What is Gypsum?

Gypsum is a mineral found in crystals as well as masses called gypsum rock. It is a very soft mineral and it can form very pretty, and sometimes extremely large.

 Source:  NHAI to Explore Use of Phosphor-Gypsum in National Highway Construction

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