Increase in industrial waste, increases threat to our society. It is very essential to dispose these wastes safely without effecting the sustainable environment. A manganese manufacturing industry produces a large amount of waste. This non-degradable refusal creates problem to our environment. We use this waste for casting solid blocks. This report deals with the partial replacement of cement by Silico Manganese dust in various percentages and finding the optimum percentage of Silico Manganese dust. This Silico Manganese dust is used as a component in solid concrete block and the compressive strength, water absorption and block density is studied.