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A road and bridge concrete pavement repair agent

A technology of concrete pavement and repair agent, which is applied in the field of building construction, can solve problems such as pavement cracks and broken plates, structural damage, and insufficient construction experience, and achieve good strength and toughness, outstanding wear resistance and frost resistance, and good The effect of anti-rust performance

Active Publication Date: 2017-10-03
HENAN TRAFFIC HIGHWAY QUALITY SUPERVISION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, the original design theory is not perfect and the construction experience is insufficient, because the control of the raw materials and mix ratio of cement concrete during construction has not reached the design standard, and the construction process is not standardized.
After several years of operation and use, some cement concrete pavement sections have various degrees of structural damage and functional defects, resulting in cracks and broken plates on the pavement, seriously affecting the quality of road use

Method used

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  • A road and bridge concrete pavement repair agent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Embodiment 1: a, 16 kilograms of zinc oxide, 22 kilograms of kaolin of 4000 meshes, 24 kilograms of pyrophyllite of 325 meshes, length / diameter: 13 kilograms of the magnesium borate whiskers of 30~50 are added in the blender and mix uniformly, obtain mixed powder A;

[0017] b. 24 kg of MS-6070 ethylene-vinyl acetate copolymer redispersible latex powder from Shandong Gomez Chemical Co., Ltd., 2.5 kg of sodium palmitoyl glutamate, 3.2 kg of sodium tripolyphosphate, length: 6mm, Diameter: 5 kg of 13 μm polyacrylonitrile fiber, add it into the mixer and mix evenly to get the mixed powder B;

[0018] c. Mix 60 kg of water with 4.5 kg of polycarboxylate superplasticizer powder and 2.2 kg of β-alanine from Suzhou Chenxiang Chemical Co., Ltd. to obtain mixture C;

[0019] d. Mix 110kg of ordinary Portland cement with mixed powder A and mixed powder B; then add mixture C and stir evenly.

Embodiment 2

[0020] Embodiment 2: a, 15 kilograms of zinc oxide, 21 kilograms of kaolin of 4000 meshes, 21 kilograms of pyrophyllite of 325 meshes, length / diameter: 12 kilograms of magnesium borate whiskers of 30~50 are added in the blender and mix evenly, obtain mixed powder A;

[0021] b. 21 kg of MS-6070 ethylene-vinyl acetate copolymer redispersible latex powder from Shandong Gomez Chemical Co., Ltd., 2 kg of sodium palmitoyl glutamate, 3 kg of sodium tripolyphosphate, length: 6mm, Diameter: 4 kg of 13 μm polyacrylonitrile fiber, add to the mixer and mix evenly to obtain mixed powder B;

[0022] c. Mix 50 kg of water with 4 kg of polycarboxylate superplasticizer powder and 2 kg of β-alanine from Suzhou Chenxiang Chemical Co., Ltd. to obtain mixture C;

[0023] d. Mix 100kg of ordinary Portland cement with mixed powder A and mixed powder B; then add mixture C and stir evenly.

Embodiment 3

[0024] Embodiment 3: a, 20 kilograms of zinc oxide, 25 kilograms of kaolin of 4000 meshes, 25 kilograms of pyrophyllite of 325 meshes, length / diameter: 15 kilograms of magnesium borate whiskers of 30~50 are added in the blender and mix uniformly, obtain mixed powder A;

[0025] b. 25 kg of MS-6070 ethylene-vinyl acetate copolymer redispersible latex powder from Shandong Gomez Chemical Co., Ltd., 3 kg of sodium palmitoyl glutamate, 4 kg of sodium tripolyphosphate, length: 6mm, Diameter: 6 kg of 13 μm polyacrylonitrile fiber, add it into the mixer and mix evenly to get the mixed powder B;

[0026] c. Mix 70 kg of water with 5 kg of polycarboxylate superplasticizer powder of Suzhou Chenxiang Chemical Co., Ltd. and 3 kg of β-alanine to obtain mixture C;

[0027] d. Mix 120kg of ordinary Portland cement with mixed powder A and mixed powder B; then add mixture C and stir evenly.

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Abstract

A road and bridge concrete pavement repairing agent comprises the following components in parts by weight: 100 to 120 parts of ordinary Portland Cement, 15 to 20 parts of zinc oxide, 21 to 25 parts of kaolin, 21 to 25 parts of pyrophyllite, 12 to 15 parts of magnesium borate whiskers, 21 to 25 parts of redispersible latex powder, 2 to 3 parts of palmitoyl sodium glutamate, 3 to 4 parts of sodium tripolyphosphate, 4 to 6 parts of polyacrylonitrile fiber, 2 to 3 parts of [beta] aminopropionic acid, 4 to 5 parts of a polycarboxylate water reducing agent and 50 to 70 parts of water. The road and bridge concrete pavement repairing agent has the advantages of good rust resistance, good strength and toughness, especially-outstanding wear resistance and frost resistance, and the like, and is very suitable for fast and reliable repair of all kinds of damaged parts of road and bridge concrete pavements.

Description

technical field [0001] The invention belongs to the technical field of building construction, in particular to a repair agent for road and bridge concrete pavement and a preparation method thereof. Background technique [0002] The cement concrete pavement of bridges and highways refers to the pavement with cement concrete as the main material, referred to as concrete pavement. Also known as rigid pavement, commonly known as white pavement, it is a high-grade pavement. There are mainly the following types of cement concrete pavement, conventional concrete pavement. Our country imported it from abroad in the late 1980s, and its impact resistance, frost resistance, and crack resistance have also been greatly improved, which is conducive to prolonging the service life of the road surface and reducing the thickness of the road surface section. Roller compacted concrete pavement. my country introduced it from abroad in the late 1980s, and it has achieved great results. At pres...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/04C04B111/20C04B111/72
CPCC04B28/04C04B2111/0075C04B2111/20C04B2111/72C04B14/30C04B14/106C04B14/10C04B14/383C04B24/2623C04B22/16C04B16/0658C04B24/24C04B24/123
Inventor 景海琴吴冬董勤峰邱振勤王恕奎王园园李俊峰刘春
Owner HENAN TRAFFIC HIGHWAY QUALITY SUPERVISION