| abstract |
A washing modified ore powder containing semi-dry modified desulfurized ash comprises the raw materials of, by weight, no less than 96% of slag powder with particle size less than 0.074mm, and no more than 4% of semi-dry modified desulfurized ash with particle size less than 0.074mm. The invention not only comprehensively utilizes blast furnace slag micropowder and semi-dry desulfurized ash, but also can effectively solve the problem of pollution caused by semi-dry desulfurized ash dump, and improves the performance of water-modified ore powder. The ore powder gains initial setting time of less than 300 min, final setting time of less than 600 min, 7-day compressive strength of not less than 22MPa and 28-day compressive strength of not less than 41MPa, and meets the standard quality requirements. |