Phosphogypsum-based stone-like structure building material and preparation method thereof
A building material, phosphogypsum technology, applied in the field of phosphogypsum-based imitation wood structure building materials and its preparation, can solve problems such as technical solutions for imitation wood structures, and achieve sustainable development, high flexural strength, and anti-corrosion The effect of high compressive strength
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Embodiment 1
[0040] Formula: 160kg of phosphogypsum, 140kg of electrolytic yellow phosphorus slag, 10kg of quicklime, 22kg of cooked brown, 21kg of raw brown, 21kg of Heshi stone, 17kg of gasoline, and 20kg of alkyd varnish.
[0041] Preparation:
[0042] Take phosphogypsum and unslaked lime according to the mass ratio of 16:1 and neutralize them for 1min, put them in a mixer and stir for 30s, then turn on the mixer, add electrolytic yellow phosphorus slag and continue to stir for 60s to obtain a mixed material, and then dry the mixed material to After the free water is ≤1%, put it into a ball mill for grinding for 40 minutes, until the specific surface area is 275m 2 / kg; the mixed material after ball milling was calcined at 140°C for 3 hours and then aged for 24 hours; the aged material was put into a vibration molding machine and formed by vibration according to the required shape; After natural curing of the vibration-molded material for 7 days, autoclave curing is carried out. The he...
Embodiment 2
[0044] Formula: 240kg of phosphogypsum, 180kg of electrolytic yellow phosphorus slag, 15kg of quicklime, 22kg of cooked brown, 21kg of raw brown, 21kg of Heshi stone, 17kg of gasoline, and 20kg of alkyd varnish.
[0045] Preparation:
[0046]Take phosphogypsum and unslaked lime according to the mass ratio of 16:1 and neutralize them for 1min, put them in a mixer and stir for 30s, then turn on the mixer, add electrolytic yellow phosphorus slag and continue to stir for 60s to obtain a mixed material, and then dry the mixed material to After the free water is ≤1%, put it into a ball mill and grind for 42 minutes until the specific surface area is 275m 2 / kg; the mixed material after ball milling was calcined at a temperature of 142°C for 3 hours, and then aged for 26 hours; the aged material was put into a vibration molding machine, and formed by vibration according to the required shape; After natural curing of vibration-molded materials for 7 days, autoclave curing is carried ...
Embodiment 3
[0048] Formula: 180kg of phosphogypsum, 150kg of electrolytic yellow phosphorus slag, 11kg of quicklime, 22kg of cooked brown, 21kg of raw brown, 21kg of Heshi stone, 17kg of gasoline, and 20kg of alkyd varnish.
[0049] Preparation:
[0050] Take phosphogypsum and unslaked lime according to the mass ratio of 16:1 and neutralize them for 1min, put them into the mixer and stir for 30s, then turn on the mixer, add electrolytic yellow phosphorus slag and continue to stir for 60s to obtain the mixed material, then put the mixed material into Grinding in a ball mill for 47 minutes until the specific surface area is 277m 2 / kg; the mixed material after ball milling was calcined at a temperature of 148°C for 4 hours, and then aged for 32 hours; the aged material was put into a vibration molding machine, and formed by vibration according to the required shape; After natural curing of vibration-molded materials for 9 days, autoclave curing is carried out. The temperature rise rate is ...
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