VISAKHAPATNAM: NTPC Simhadri will come up with a plant that produces nano concrete aggregate, at an estimated cost of Rs 50 crore. Speaking to TNIE, general manager of ash management of NTPC Sanjeev Kumar Saxena said, “The disaster recovery planning is prepared and construction will commence at the end of the first quarter of 2023. We will develop ash based building products which include fly ash bricks, light weight aggregate, geoplumer coarse aggregate, and interlocking paver tiles.”