Quick healant with low viscosity and high performance for concrete structure

A high-performance concrete and low-viscosity technology, which is applied in the field of chemical building materials, can solve the problems of long curing time, large shrinkage deformation, and high requirements for preparation conditions, and achieves simple preparation and construction operations, low loss rate of mechanical strength, and economical reduction. loss effect

Inactive Publication Date: 2010-07-28
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This patented new type of quick fixer for use on small holes or cracked areas made from older materials was developed during this period due to their ease of preparations and construction compared to previous methods like cement grout fillings that were previously used only temporarily. These tools have excellent performance even at very long durability periods but they still require significant maintenance overtime because it becomes difficult to maintain consistently.

Problems solved by technology

This patents describes different ways to make quick repairs that last over 10 years without causing further damages like punchouts. However current methods require expensive equipment and involve complex procedures. Therefore, new solutions must overcome challenges associated with conventional techniques while maintain their effectiveness at preventing future failures from happening again.

Method used

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  • Quick healant with low viscosity and high performance for concrete structure

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Comparison scheme
Effect test

Embodiment 1

[0030] (1) low-viscosity high-performance concrete structure rapid repair agent comprises following components by weight parts:

[0031] Component 1: methyl methacrylate, 100 parts;

[0032] Component 2: butyl methacrylate, 28 parts;

[0033] Component 3: benzoyl peroxide, 3.0 parts;

[0034] Component 4: epoxy resin, 16 parts;

[0035] Component 5: KH-570, 10 parts;

[0036] Component 6: methacrylic acid, 3.5 parts;

[0037] Component 7: Dimethylaniline, 1.2 parts;

[0038] Component 8: Portland cement, 0 parts.

[0039] (2) Preparation of low-viscosity high-performance concrete structure rapid repair agent

[0040] Mix and stir epoxy resin, methyl methacrylate, butyl methacrylate, benzoyl peroxide, KH-570, and methacrylic acid at room temperature until the solution becomes transparent, then react at 80°C for 25 minutes. After the viscosity reaches 65mPa·s, it is cooled to room temperature, and finally the curing material dimethylaniline is added in proportion to obtai...

Embodiment 2

[0042] (1) low-viscosity high-performance concrete structure rapid repair agent comprises following components by weight parts:

[0043] Component 1: methyl methacrylate, 100 parts;

[0044] Component 2: butyl methacrylate, 32 parts;

[0045] Component 3: benzoyl peroxide, 3.3 parts;

[0046] Component 4: epoxy resin, 20 parts;

[0047] Component 5: KH-570, 14 parts;

[0048] Component 6: methacrylic acid, 3.7 parts;

[0049] Component 7: Dimethylaniline, 1.0 parts;

[0050] Component 8: Portland cement, 10 parts.

[0051] (2) Preparation of low-viscosity high-performance concrete structure rapid repair agent

[0052]Mix and stir epoxy resin, methyl methacrylate, butyl methacrylate, benzoyl peroxide, KH-570, and methacrylic acid at room temperature until the solution becomes transparent, then react at 81°C for 22 minutes. After the viscosity reaches 45mPa·s, cool to room temperature, add inorganic fillers and disperse under ultrasonic for 15 minutes, the measured viscos...

Embodiment 3

[0054] (1) low-viscosity high-performance concrete structure rapid repair agent comprises following components by weight parts:

[0055] Component 1: methyl methacrylate, 100 parts;

[0056] Component 2: butyl methacrylate, 35 parts;

[0057] Component 3: benzoyl peroxide, 3.8 parts;

[0058] Component 4: epoxy resin, 15 parts;

[0059] Component 5: KH-570, 19 parts;

[0060] Component 6: methacrylic acid, 4.0 parts;

[0061] Component 7: dimethylaniline, 0.8 parts;

[0062] Component 8: Portland cement, 20 parts.

[0063] (2) Preparation of low-viscosity high-performance concrete structure rapid repair agent

[0064] Mix and stir epoxy resin, methyl methacrylate, butyl methacrylate, benzoyl peroxide, KH-570, and methacrylic acid at room temperature. After the solution becomes transparent, the reaction time at 83°C is After 21 minutes, after the viscosity reaches 40mPa·s, cool to room temperature, add inorganic fillers and disperse under ultrasonic for 20min, the measur...

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Abstract

The invention relates to a quick healant with low viscosity and high performance for a concrete structure, belonging to the field of chemical building materials. The quick healant comprises eight components of 100 parts of methyl methacrylate, 28-35 parts of butyl methacrylate, 3.0-3.8 parts of benzoyl peroxide, 15-20 parts of epoxy resin, 10-19 parts of KH-570, 3.5-4.0 parts of methacrylic acid, 0.8-1.2 parts of dimethylaniline and 0-20 parts of inorganic filler. The invention not only retains the low viscosity and the high permeability of a polymethyl repairing material, but also has higher mechanical strength, lower shrinking rate and favorable durable performance. In addition, the invention can meet the requirement for rapidly repairing microscopic checks of the concrete structure.

Description

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Claims

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Application Information

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Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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