Barium slag-modified aluminate quick-hardening special cementing material and preparation method thereof

A barium slag-modified aluminate quick-hardening cementing material, comprising, in parts by weight, following raw materials for preparation of the barium slag-modified aluminate quick-hardening cementing material:

• 10-12 parts of aluminate cement clinker, 2-3 parts of barium slag powder, 1.5-2 parts of sulfate material, and an early-setting agent;
• wherein the early-setting agent is present in an amount greater than zero and up to 1.5 parts and wherein the sulfate material and the early setting agent are different;
• the sulfate material includes at least one of sodium sulfate, calcium sulfate, aluminum sulfate, potassium sulfate, phosphogypsum, and celestite;
• the early-setting agent comprises at least one of calcium hydroxide, sodium hydroxide, sodium carbonate, sodium sulfate, quicklime, and carbide slag;
• a mass proportion of tricalcium aluminate in the aluminate cement clinker is 20-40 wt %;
• a ratio of a molar mass of Ba2+ in the barium slag powder to a molar mass of SO42−+PO43− ions in the sulfate material is 1:1;
• wherein a method for preparing the barium slag powder comprises:
• obtaining a black barium slag powder satisfying that according to GB 5085.3-2007 test, a leaching concentration of Ba2+ from the black barium slag powder in an acidic solution with a liquid-solid ratio of 10:1 is 1500-2300 mg/L;
• and
• subjecting the black barium slag powder to calcining at 800-1200° C., a ball milling and passing through a 200-mesh sieve to obtain the barium slag powder.