Blast furnace flue gas desulfurization building gypsum and preparation method thereof
A technology for desulfurized building gypsum and desulfurized gypsum, which is applied in the field of blast furnace flue gas desulfurized building gypsum and its preparation, can solve the problems of low strength and high water absorption of gypsum blocks, achieve high strength, reduce water absorption, and increase strength
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[0025] The present invention also provides a preparation method for blast furnace flue gas desulfurization building gypsum, comprising the following steps: grinding blast furnace flue gas desulfurization gypsum, ordinary Portland cement, Xigeda soil, and lime into powder according to a weight ratio of 1:0.1 to 0.15: Mix 0.2:0.2 and get it.
[0026] The present invention also provides a preparation method of blast furnace flue gas desulfurization building gypsum block, comprising the following steps: adding water to the blast furnace flue gas desulfurization building gypsum, mixing and stirring, pouring into a mold and then performing natural curing; the blast furnace smoke The weight ratio of each raw material and water in gas desulfurization building gypsum is: blast furnace flue gas desulfurization gypsum: ordinary Portland cement: Xigeda soil: lime: water = 1:0.1~0.15:0.2:0.2:0.5~0.75.
[0027] Wherein, in the preparation method of the blast furnace flue gas desulfurization...
Embodiment 1
[0035] The blast furnace flue gas desulfurization building gypsum in this embodiment includes the following raw materials: 2000 g of blast furnace flue gas desulfurization gypsum, 300 g of ordinary Portland cement, 400 g of Xigeda soil, and 400 g of lime.
[0036] The preparation method of blast furnace flue gas desulfurization building gypsum in this embodiment: mix the above raw materials evenly.
[0037] The preparation method of blast furnace flue gas desulfurization building gypsum block in this example: 2000g of blast furnace flue gas desulfurization gypsum, 300g of ordinary Portland cement, 400g of Xigeda soil, 400g of lime and 1360g of water are mixed and stirred for 30s, poured into the mold for 5min Molding and natural curing to obtain blast furnace flue gas desulfurization building gypsum blocks. The obtained blast furnace flue gas desulfurization building gypsum block is then subjected to natural curing for 28 days, and after drying in an oven, the compressive stre...
Embodiment 2
[0039] The blast furnace flue gas desulfurization building gypsum in this embodiment includes the following raw materials: 2000 g of blast furnace flue gas desulfurization gypsum, 210 g of ordinary Portland cement, 400 g of Xigeda soil, and 400 g of lime.
[0040] The preparation method of blast furnace flue gas desulfurization building gypsum in this embodiment: mix the above raw materials evenly.
[0041] The preparation method of the blast furnace flue gas desulfurization building gypsum block in this example: 2000g of blast furnace flue gas desulfurization gypsum, 210g of ordinary Portland cement, 400g of Xigeda soil, 400g of lime and 1500g of water were mixed and stirred for 45s, and then poured into the mold for 5min Molding and natural curing to obtain blast furnace flue gas desulfurization building gypsum blocks. The obtained blast furnace flue gas desulfurization building gypsum blocks were then subjected to natural curing for 28 days, and after being dried in an oven...
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Abstract
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Application Information

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