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A kind of inorganic cement-based fast anchoring adhesive and preparation method thereof

An adhesive and cement-based technology, which is applied in the field of inorganic cement-based fast anchoring adhesive and its preparation, can solve the problems of low bond strength between adhesive bonded steel bar and substrate concrete, low early strength, long curing time, etc., and achieve solidification Controllable time, improved construction performance, and good fluidity

Inactive Publication Date: 2019-08-09
广州长宜新材料科技有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention aims at the technical problems of the existing inorganic cement-based anchoring adhesives such as low early strength, long curing time, and low bonding strength between the adhesive bonded steel bar and the substrate concrete under the condition of constrained drawing, and provides an inorganic cement-based fast anchoring adhesive, The invention also provides a preparation method of the anchor adhesive

Method used

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  • A kind of inorganic cement-based fast anchoring adhesive and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0028] In the powder composition of the inorganic cement-based fast anchoring adhesive of this example, component A consists of the following raw materials in parts by weight: 1.6kg of magnesia, 2.2kg of ammonium dihydrogen phosphate, 0.8kg of fly ash, 0.4kg zeolite; B component is composed of the following raw materials: 2.89kg of magnesia, 0.1kg of boric acid, 1kg of limestone powder, 1kg of quartz sand, and 0.01kg of powdered organosilicon defoamer.

[0029] Among them, magnesia is sintered magnesia with a fineness of 80 mesh, and the mass fraction of magnesium oxide is 85%; fly ash has a specific surface area of ​​350m 2 / kg low calcium grade I fly ash; zeolite has a specific surface area of ​​350m 2 / kg ultra-fine zeolite powder; limestone powder is a powder with a fineness of 400 mesh and a mass fraction of calcium carbonate of 95%; the particle size of quartz sand is 60 mesh.

[0030] The preparation method of the inorganic cement-based fast anchoring adhesive in this ...

Embodiment 2

[0039] In the powder composition of the inorganic cement-based fast anchoring adhesive in this example, component A consists of the following raw materials: 1.5kg of magnesia, 2.0kg of ammonium dihydrogen phosphate, 1.0kg of fly ash, and 0.5kg of slag Micropowder; component B consists of the following raw materials: 3.29kg of magnesia, 0.2kg of boric acid, 1.5kg of quartz sand, and 0.01kg of powdered silicone defoamer.

[0040] Among them, magnesia is sintered magnesia with a fineness of 140 mesh, and the mass fraction of magnesium oxide is 95%; fly ash has a specific surface area of ​​400m 2 / kg low calcium grade I fly ash; the specific surface area of ​​slag fine powder is 400m 2 / kg; the particle size of quartz sand is 80 mesh.

[0041] The preparation method of the inorganic cement-based fast anchoring adhesive in this embodiment is as follows:

[0042] The first step is to prepare component A and component B powder separately:

[0043] Weigh the raw materials according...

Embodiment 3

[0050] In the powder composition of the inorganic cement-based fast anchoring glue in this example, component A is composed of the following raw materials: 1.7kg of magnesia, 1.8kg of ammonium dihydrogen phosphate, 1kg of fly ash, and 0.5kg of metakaolin ;Component B consists of the following raw materials: 3.095kg of magnesia, 0.2kg of boric acid, 0.2kg of sodium tetraborate pentahydrate, 0.5kg of limestone powder, 1kg of quartz sand, and 0.005kg of powdered silicone defoamer .

[0051] Among them, magnesia is sintered magnesia with a fineness of 110 mesh, and the mass fraction of magnesium oxide is 97%; fly ash has a specific surface area of ​​450m 2 / kg of low-calcium grade II fly ash; metakaolin is kaolin powder calcined at 700°C for 30 minutes, with a specific surface area of ​​800m 2 / kg of powder; limestone powder is a powder with a fineness of 600 mesh and a mass fraction of calcium carbonate of 90%; the particle size of quartz sand is 150 mesh.

[0052] The preparat...

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Abstract

The invention provides an inorganic cement-based fast anchoring adhesive and preparation method thereof. The dry powder material of the anchoring adhesive is prepared from an ingredient A and an ingredient B which are packaged individually, wherein the ingredient A is prepared from the following raw materials in parts by weight: 15 to 20 parts of magnesia, 15 to 22 parts of dihydric phosphate, 10 to 20 parts of mixed admixture; the ingredient B is prepared from the following raw materials in parts by weight: 28 to 36 parts of magnesia, 0 to 4 parts of inorganic boron compounds, 10 to 20 parts of inorganic filler, 0.05 to 0.1 part of defoamer. The invention also provides the preparation method of the anchoring adhesive. The inorganic anchoring adhesive prepared in the invention has the performance characteristics of fast curing, rapid development of early strength, good fluidity, convenient pouring, large bonding strength for steel bar, high anchoring strength and stable volume, etc. The anchoring adhesive has a wide range of adaptation, and can be widely used in industrial and civil buildings, roads, bridges, tunnels, docks and other post-anchorage structures, as well as steel structure, equipment installation and other bolting anchoring projects.

Description

technical field [0001] The invention belongs to the field of reinforcing materials for building structures, and in particular relates to an inorganic cement-based fast anchoring adhesive and a preparation method thereof. Background technique [0002] Anchor adhesives are widely used in the reinforcement of building structures, and are usually divided into organic anchor adhesives and inorganic anchor adhesives in terms of material composition. At present, most of the anchoring adhesives commonly used in the market are organic anchoring adhesives. It is a bonding and strengthening material for building structures made of special synthetic resins, curing agents, curing accelerators, filling materials and various chemical additives. Specifically, it can be divided into There are two types, one is epoxy resin anchor adhesive represented by JGN architectural structural adhesive, and the other is polyurethane high-performance resin adhesive represented by Hilti series structural a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/34
CPCC04B28/34C04B2111/00637C04B2111/00724C04B2111/0075C04B14/304C04B18/08C04B14/047C04B22/082C04B14/28C04B14/06C04B2103/50C04B18/141C04B14/106C04B22/08
Inventor 潘亚宏钱觉时阮树求秦继辉王昆尤超邓铃夕
Owner 广州长宜新材料科技有限公司