Gypsum-based internal heat insulation material
A thermal insulation material and gypsum-based technology, applied in the field of building thermal insulation materials, can solve problems such as unmanned use, and achieve the effects of reducing energy consumption, saving energy and reducing pollution
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Embodiment 1
[0021] In the present embodiment, the raw materials of the gypsum-based inner insulation material are composed of:
[0022] 87 parts of desulfurized gypsum powder, 9 parts of vitrified microbeads, 4 parts of polyphenylene particles, 0.3 parts of hydroxypropyl methylcellulose, 0.35 parts of SC gypsum retarder, potassium sulfate and aluminum sulfate (mass ratio: 3:2) 0.33 parts.
[0023] 3min, final setting time ≤ 30min, 2-hour flexural strength greater than 2.0KPa, compressive strength greater than or equal to 4.0KPa.
[0024] When the gypsum-based inner heat preservation material of the present invention is used, the water and the gypsum-based inner heat preservation material are mixed and stirred evenly according to the water-cement ratio of 0.6-0.70:1.
[0025] The gypsum-based inner thermal insulation material of the present invention has a setting time of 60 minutes, moderate setting time; setting strength ≥ 0.2mp, high strength; thermal conductivity ≤ 0.06W / (m·k), good t...
Embodiment 2
[0027] In the present embodiment, the raw materials of the gypsum-based inner insulation material are composed of:
[0028] 85 parts of desulfurized gypsum powder, 10 parts of vitrified microbeads, 5 parts of polyphenylene particles, 0.25 parts of hydroxypropyl methylcellulose, 0.5 parts of SC gypsum retarder, potassium sulfate and aluminum sulfate (mass ratio: 3:2) 0.25 servings.
[0029] Among them, desulfurized gypsum powder is obtained from thermal power plant waste after calcination at a low temperature of 105-110 ℃, the initial setting time is ≥3min, the final setting time is ≤30min, the 2-hour flexural strength is greater than 2.0MPa, and the compressive strength is greater than or equal to 4.0MPa .
[0030] When the gypsum-based inner heat preservation material of the present invention is used, the water and the gypsum-based inner heat preservation material are mixed and stirred evenly according to the water-cement ratio of 0.6-0.70:1.
[0031] The gypsum-based inner...
Embodiment 3
[0033] In the present embodiment, the raw materials of the gypsum-based inner insulation material are composed of:
[0034] 90 parts of desulfurized gypsum powder, 5 parts of vitrified microbeads, 5 parts of polyphenylene particles, 0.3 parts of hydroxypropyl methylcellulose, 0.2 parts of SC gypsum retarder, potassium sulfate and aluminum sulfate (mass ratio: 3:2) 0.5 servings.
[0035] Among them, desulfurized gypsum powder is obtained from thermal power plant waste after calcination at a low temperature of 105-110 ℃, the initial setting time is ≥3min, the final setting time is ≤30min, the 2-hour flexural strength is greater than 2.0MPa, and the compressive strength is greater than or equal to 4.0MPa .
[0036] When the gypsum-based inner heat preservation material of the present invention is used, the water and the gypsum-based inner heat preservation material are mixed and stirred evenly according to the water-cement ratio of 0.6-0.70:1.
[0037] The gypsum-based internal...
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