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A glass-ceramic and binder technology, applied in the field of building materials, can solve the problems of VOC emission affecting the indoor environment, difficulty in achieving the same life of buildings, powdering of the surface of glass-ceramic, etc., achieving high construction efficiency, low cost, Good dimensional stability
Active Publication Date: 2021-08-17
BEIJING BUILDING MATERIALS ACADEMY OF SCI RES
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Problems solved by technology
However, when cement-based adhesives are used for glass-ceramic masonry bonding, the alkaline substances in the cement will chemically react with the siliceous materials in the glass-ceramics, causing the surface of the glass-ceramics to pulverize and affect the bonding quality. ; and the cement-based binder usually has a slow hydration rate and slow strength development, which affects the construction speed
In addition, other organic binders in the prior art have poor durability, and it is difficult to achieve the same lifespan as the building, and VOC emissions affect the indoor environment, and the production and use costs are high
Method used
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Embodiment 1
[0048] This embodiment provides a special binder of a microcrystalline glass comprising a component of the following weight:
[0049]
[0050] Among them, the α-type high-strength gypsum is from industrial by-production plaster in a saturated water vapor medium, dissolved and recrystallized by 4 h; the dry compressive strength is 50 MPa, and the particle size is 0.1 to 100 μm, and the average particle size is 12 ~ 15μm;
[0051] The volume stabilizer is a mixture of tartaric acid and the type II water-resistant gypsum by mass than 1:50;
[0052] Among the molybdenum tailings, a particle size of 100 to 1000 μm accounted for 40%, and a particle diameter of 10 to 100 μm accounted for 60%.
Embodiment 2
[0054] This embodiment provides a special binder of a microcrystalline glass comprising a component of the following weight:
[0055]
[0056] Wherein, the α-type high-strong gypsum has a dry anti-pressure strength of 50 MPa, and the particle size is 0.1 to 100 μm, and the average particle diameter is 12 to 15 μm;
[0057] The volume stabilizer is a mixture of tartaric acid and the type II water-resistant gypsum by mass than 1:50;
[0058] Among the molybdenum tailings, a particle diameter accounted for 45%, a particle diameter of 10 to 100 μm accounted for 55%.
Embodiment 3
[0060] This embodiment provides a special binder of a microcrystalline glass comprising a component of the following weight:
[0061]
[0062]
[0063] Among them, the dry anti-pressure strength of the α-type high-strong gypsum is 45 MPa, 0.1 to 80 μm, and average particle size of 10 to 12 μm;
[0064] The volume stabilizer is a mixture of tartaric acid and the type II water-resistant gypsum by mass than 1:50;
[0065] Among the molybdenum tailings, a particle diameter accounted for 42%, a particle size of 10 to 100 μm accounted for 58%.
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Abstract
The present invention relates to the field of building materials, in particular to a special binder for glass-ceramics; the special binder for glass-ceramics includes α-type high-strength gypsum, tailings sand, and a volume stabilizer; wherein, α-type high-strength gypsum is produced by an industrial vice The gypsum is prepared by dissolving and recrystallizing in a saturated water vapor medium; the volume stabilizer is a mixture of expansion reducing agent and shrinkage reducing agent; the expansion reducing agent is tartaric acid; the shrinkage reducing agent is type II anhydrous anhydrite ; The mass ratio of the α-type high-strength gypsum, the tailings sand and the volume stabilizer is 30-50:50-70:1-3. The pH value of the special binder for glass-ceramics of the present invention is neutral, has good compatibility with glass-ceramics, and is especially suitable for masonry and bonding of glass-ceramics; Compared with the adhesives in the prior art, the strength development speed of the adhesive is fast, the construction efficiency is high, the bonding strength is high, it is not easy to fall off, the dimensional stability is good, and hollowing is not easy to occur; and the cost is low.
Description
Technical field [0001] The present invention relates to the field of building materials, and more particularly to a special binder of a microcrystalline glass. Background technique [0002] Microcrystalline glass, also known as microcrystalline jade, concentrated the triple advantages of glass, ceramics and natural stone. Ordinary glass is fragile due to the internal atomic arrangement, the microcrystalline glass is like ceramic, consisting of crystals, the atomic arrangement is regular, stronger than the glass toughness, and is more bright than the brightness of the ceramics, and the performance is superior to natural stone In addition to the construction curtain wall and indoor high-end decoration, it is also produced into mechanical structural materials, electronics and electrical insulation materials, large-scale integrated circuits, microwave heat resistant vessels, chemical and anti-corrosion materials and mines wear resistant Material, etc. [0003] Tailings sand is the wa...
Claims
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Application Information
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