NHAI along with Department of Fertilizers, Ministry of Chemicals & Fertilizers is going to take up field trials on NHAI projects for use of Phosphor-Gypsum in National Highway construction to achieve a circular economy in the use of Gypsum.
- Phosphor-Gypsum is a by-product of fertilizer production.
- An Indian fertilizer company has constructed a road using Phosphor-Gypsum. The road was evaluated by Central Road Research Institute (CRRI) and based on their report, the Indian Road Congress (IRC) has accredited neutralized Phosphor-Gypsum waste material for road construction for a period of three years.
