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Underwater reinforced concrete grouting cement and preparation method thereof

A technology of parts by weight and phenalkamine curing agent, which is applied in the direction of adhesives, epoxy resin adhesives, adhesive types, etc., can solve the problem that epoxy adhesives cannot meet structural reinforcement, underwater bonding strength is reduced, and cannot be completely Underwater curing and other problems, to achieve excellent reactivity, high fluidity, and save the amount of glue used

Inactive Publication Date: 2016-12-21
CARBON COMPOSITESTIANJIN CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] With the rapid development of engineering structure reinforcement, conventional epoxy adhesives cannot meet the special requirements of structural reinforcement, such as high and low temperature environments, underwater environments, etc.
The current underwater structural adhesives use curing agents such as ketimine curing agents and modified alicyclic amine curing agents, such as 1085, which can only be used in humid environments and cannot be completely cured underwater. When used in water Water absorption and whitening will occur, resulting in a serious reduction in underwater bonding strength

Method used

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  • Underwater reinforced concrete grouting cement and preparation method thereof

Examples

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Comparison scheme
Effect test

Embodiment 1

[0014] An underwater steel glue, including A component and B component, the parts by weight of the A component are: epoxy resin 128: 75 parts, reactive diluent: 10 parts and silane coupling agent: 0.5 parts , The parts by weight of the B component are: cashew nut oil modified phenalkamine curing agent: 90 parts.

[0015] Its preparation method comprises the following steps:

[0016] S1: Mixing: put epoxy resin 128, reactive diluent and silane coupling agent into a magnetic stirrer, stir at 400r / min for 10min, the temperature is 10 degrees Celsius, and it is ventilated;

[0017] S2: Combination: Add the cashew nut oil modified phenalkamine curing agent to the mixture in step S2 at a ratio of 1:2, mix evenly, and use it immediately after mixing.

Embodiment 2

[0019] An underwater steel glue, including A component and B component, the parts by weight of the A component are: epoxy resin 128: 85 parts, reactive diluent: 15 parts and silane coupling agent: 1.5 parts , The parts by weight of the B component are: cashew nut oil modified phenalkamine curing agent: 110 parts.

[0020] Its preparation method comprises the following steps:

[0021] S1: Mixing: put epoxy resin 128, reactive diluent and silane coupling agent into a magnetic stirrer, stir at 1000r / min for 20min, the temperature is 25 degrees Celsius, and it is ventilated;

[0022] S2: Combination: Add the cashew nut oil modified phenalkamine curing agent to the mixture in step S2 at a ratio of 1:2, mix evenly, and use it immediately after mixing.

Embodiment 3

[0024] An underwater steel glue, comprising A component and B component, the parts by weight of the A component are: epoxy resin 128: 80 parts, reactive diluent: 13 parts and silane coupling agent: 1 part , The parts by weight of the B component are: cashew nut oil modified phenalkamine curing agent: 100 parts.

[0025] Its preparation method comprises the following steps:

[0026] S1: Mixing: Put epoxy resin 128, reactive diluent and silane coupling agent into a magnetic stirrer, stir at 700r / min for 15min, the temperature is 18 degrees Celsius, and it is ventilated;

[0027] S2: Combination: Add the cashew nut oil modified phenalkamine curing agent to the mixture in step S2 at a ratio of 1:2, mix evenly, and use it immediately after mixing.

[0028] After curing for 7 days, test its performance. The performance is as follows:

[0029]

[0030] After comparing with the relevant requirements of Table 4.4.2-1 in GB 50728-2011, all are qualified.

[0031] In the present i...

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Abstract

The invention discloses an underwater reinforced concrete grouting cement which comprises a component A and a component B. The component A comprises the following ingredients in parts by weight: 75-85 parts of epoxy resin 128, 10-15 parts of reactive diluent and 0.5-1.5 parts of 0.5-1.5. The component B comprises 90-110 parts by weight of cashew-oil-modified phenol formaldehyde amine hardener. The preparation method comprises the following steps: S1: mixing; and S2: combining. In the cashew-oil-modified phenol formaldehyde amine hardener, the aromatic ring structure of the phenol formaldehyde amine endows the hardener with excellent chemical resistance, the hydroxyl provides higher bonding strength and excellent reaction activity for quick hardening and low-temperature hardening, and the side chain provides water resistance and toughness; and the cashew-oil-modified phenol formaldehyde amine hardener has the advantages of favorable thixotropy and no flowing during construction, and can reduce the cement consumption. The hardened material has the advantages of excellent mechanical properties, favorable toughness, favorable earthquake resistance, favorable impact resistance, favorable toughness, favorable peel strength, favorable impact resistance and the like.

Description

technical field [0001] The invention relates to the technical field of underwater steel pouring glue, in particular to an underwater steel pouring glue and a preparation method thereof. Background technique [0002] With the rapid development of engineering structure reinforcement, conventional epoxy adhesives cannot meet the special requirements of structural reinforcement, such as high and low temperature environments, underwater environments, etc. The current underwater structural adhesives use curing agents such as ketimine curing agents and modified alicyclic amine curing agents, such as 1085, which can only be used in humid environments and cannot be completely cured underwater. When used in water Water absorption and whitening will occur, resulting in a serious reduction in underwater bonding strength. How to provide a kind of underwater steel pouring adhesive to meet the reinforcement operation of the underwater environment and ensure its excellent body performance ...

Claims

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Application Information

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IPC IPC(8): C09J163/00C09J11/06C08G59/62
CPCC09J163/00C08G59/62C08K5/54C09J11/06
Inventor 赵颖汤飞许小海
Owner CARBON COMPOSITESTIANJIN CO LTD
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