Utilisation of copper slag for cement manufacture
As the copper slag is found to contain an appreciable amount of Fe 2 O 3, a maximum of % of copper slag is recommended in the raw mix for manufacture of OPC. The performance of OPC prepared with % copper slag as raw mix component indicates that at a fineness of 2 /kg, the cement satisfies all the requirements of Indian Standard Specification IS: for 53 grade OPC and hence can