Method for enhancing compressive strength of lead smelting water-quenched slag-based cementitious material by mechanical activation

A method for enhancing compressive strength of a lead smelting water-quenched slag-based cementitious material by mechanical activation, comprising following steps:

• grinding and activating lead smelting water-quenched slag;
• then mixing with calcium-based solid waste, magnesium-based solid waste, magnesium oxide, calcium oxide, Portland cement and water;
• and performing a steam curing and a curing at a room temperature on obtained cementitious material slurry to obtain the lead smelting water-quenched slag-based cementitious material,
• wherein the lead smelting water-quenched slag is ground to a particle size of 2.0-120 μm;
• the lead smelting water-quenched slag is dried at 100-110° C. for 22-24 h before the grinding, and anhydrous sodium carbonate with a particle size of 10-50 μm is added in an amount of 5% of a weight of the lead smelting water-quenched slag;
• a particle size of the calcium oxide is 10-50 μm;
• and
• a mass ratio of the lead smelting water-quenched slag, the calcium-based solid waste, the magnesium-based solid waste, the magnesium oxide, the Portland cement and the water is 1000:(50-70):(40-60):(60-80):(90-110):(230-250).