Cement for Railway Concrete Sleepers is offered by NCL Energy Limited. NCL Energy Limited is an ISO 9001: 2000 company that manufactures a wide range of building materials. Cement for Railway Concrete Sleepers has a compressive strength of OPC53 Grade compared with BIS Standards. Concrete Sleeper Nagarjuna 53S Cement Standard Grade Standards 3 days in M.Pa 27 35 7 days in M.Pa 37.5 45 28 days in M.Pa 53 60 [M.Pa: MegaPascals] Physical Tests: Blain M2/kg 370 400 Initial Setting Time [Minutes] 60 Min 130 Min Final Setting Time [Minutes] 600 Max 240 Max