High-performance heat-preservation thermal-insulation wall material
A wall material, thermal insulation technology, applied in the field of building thermal insulation materials and engineering, can solve the problems of low strength and durability of thermal insulation wall materials
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example 1
[0019] Example 1: Using tetraethyl orthosilicate as a carbon source, a three-dimensional reticular silica airgel was prepared by a sol-gel method, and the prepared silica airgel was ground into a powder; 0.2% by mass of silica airgel powder, add dispersant and water and fully stir to form a uniform slurry, and then add 0.8% by mass of powder mass superplasticizer. Add 35 parts of cement, 15% by mass fraction of high-strength fly ash ceramsite with a particle size of 5mm to 10mm, 20 parts of blast furnace slag, and 30 parts of fly ash into the mixer. The sand rate is set to 39%, and stirred for 3 minutes. Add the mixed slurry and mix it evenly to make molding and pouring. After the formwork is removed, it will be cured to obtain a high-performance thermal insulation wall material.
Embodiment 2
[0020] Example 2: Using tetraethyl orthosilicate as a carbon source, a three-dimensional reticulated silica airgel was prepared by a sol-gel method, and the prepared airgel was ground into powder; 0.31% of the mass of the powder was weighed For silicon airgel powder, add an appropriate amount of dispersant and stir to form a uniform slurry, and then add 0.9% superplasticizer by powder mass. Add 30 parts of cement, 20 parts of high-strength fly ash ceramsite, 20 parts of blast furnace slag, and 30 parts of fly ash to the mixer in sequence, set the sand ratio to 42%, and mix at a high speed of 3mim. Add the mixed slurry to fully stir, cast into shape, and remove the formwork to get a high-performance thermal insulation wall material.
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