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A high-performance sand mist-containing sealing layer material and its preparation method

A fog-sealing material and high-performance technology, used in coatings, asphalt coatings, paints containing biocides, etc., can solve the problems of long construction time, poor flexibility of cured products, poor wear resistance, etc. , good adhesion and strong wear resistance

Active Publication Date: 2022-01-11
辽宁省交通科学研究院有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In order to solve technical problems such as pollution, poor flexibility of cured products, poor wear resistance, and long construction time in the sand-mist-containing sealing layer materials of the prior art, the present invention provides a high-performance sand-mist-containing sealing layer material and The preparation method is to make a high-performance sand mist-containing sealing layer material for road construction, which greatly improves the construction efficiency of the sealing layer, has a good preventive maintenance effect on asphalt pavement, and prolongs the service life

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] A high-performance sand mist-containing sealing layer material. The mass ratio of the components is: 100 parts of zwitterionic SBS modified emulsified asphalt with a solid content of 50%, 0.15 parts of xanthan gum with a particle size of 80 mesh, and a solid content of 18 parts of 40% thickening and toughening agent, 0.1 part of alcohol fat-12, 13 parts of kaolin with a particle size of 800 mesh, 0.01 part of sodium benzoate and 25 parts of emery;

[0045] The thickening and toughening agent is composed of acrylic acid emulsion and neoprene latex, wherein acrylic acid emulsion accounts for 16 parts, and neoprene latex accounts for 2 parts;

[0046] The mass ratio of the grain size grades of the corundum is that (0.075≤grain size≤0.15) mm grade accounts for 25%, (0.15<grain size≤0.3) mm grade accounts for 50%, and (0.3<grain size≤0.6) mm Class proportion is 25%;

[0047] The preparation method of the above-mentioned high-performance sand mist-containing sealing layer ma...

Embodiment 2

[0064] A high-performance sand mist-containing sealing layer material, the mass ratio of components is: 100 parts of zwitterionic ordinary emulsified asphalt with a solid content of 55%, 0.2 parts of xanthan gum with a particle size of 80 mesh, and a solid content of 60%. 58 parts of thickening and toughening agent, 0.3 part of alcohol fat-12, 20 parts of kaolin with a particle size of 600 mesh, 0.01 part of potassium sorbate and 35 parts of corundum;

[0065] The thickening and toughening agent is composed of two kinds of acrylic acid emulsion and neoprene latex, wherein acrylic acid emulsion accounts for 50 parts, and neoprene latex accounts for 8 parts;

[0066] The mass ratio of the particle size grades of the corundum is that (0.075≤particle size≤0.15) mm grade accounts for 30%, (0.15<particle size≤0.3) mm grade accounts for 45%, and (0.3<particle size≤0.6) mm Class proportion is 25%;

[0067] The preparation method of the above-mentioned high-performance sand mist-conta...

Embodiment 3

[0084] A high-performance sand mist-containing sealing layer material. The mass ratio of the components is: 100 parts of zwitterionic SBR modified emulsified asphalt with a solid content of 45%, 0.5 parts of xanthan gum with a particle size of 40 mesh, and a solid content of 105 parts of 70% thickening and toughening agent, 5 parts of alcohol fat-12, 30 parts of kaolin with a particle size of 200 mesh, 0.01 part of potassium sorbate and 80 parts of corundum;

[0085] The thickening and toughening agent is composed of two kinds of acrylic acid emulsion and neoprene latex, wherein acrylic acid emulsion accounts for 100 parts, and neoprene latex accounts for 5 parts;

[0086] The mass ratio of the particle size grades of the corundum is that (0.075≤grain size≤0.15) mm grade accounts for 20%, (0.15<grain size≤0.3) mm grade accounts for 60%, and (0.3<grain size≤0.6) mm Class proportion is 20%;

[0087] The preparation method of the above-mentioned high-performance sand mist-contai...

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Abstract

A high-performance sand mist-containing sealing layer material and its preparation method belong to the road engineering technical field, and the material composition includes zwitterionic emulsified asphalt, suspension thickener, viscosity-increasing and toughening agent, film-forming agent, suspending agent, and preservative and anti-skid fine sand; the preparation method includes preparing a base material, preparing a concentrated solution of a sand-mist seal layer, preparing a high-performance sand-mist seal layer material and construction. The finger-drying time of the sand mist-containing sealing layer material obtained in the present invention is 10-30 minutes, the drawing strength at 60°C is 0.35-1.1 MPa, and the wet wheel abrasion value is 22.8-56 g / m 2 , Corundum 7 days of uniform suspension, service life of more than 3 years. The high-temperature drawing strength of the present invention is at least 20% higher than the existing traditional sand mist-containing sealing layer materials, which can solve the problems of poor high-temperature adhesion and poor wear resistance of existing materials, and has the advantages of short drying time, good maintenance effect, and easy to use. Long life and other advantages.

Description

technical field [0001] The invention belongs to the technical field of road engineering, in particular to a high-performance sand mist-containing sealing layer material and a preparation method thereof. Background technique [0002] Sand-containing mist seal is a mixture composed of emulsified asphalt or coal tar pitch-based materials, clay, polymer additives and other materials as the main components of mist seal material and sand. It is a preventive maintenance material for asphalt pavement. The high-pressure spraying vehicle sprays on the asphalt pavement to form a thin repair protective layer, which can close the micro-cracks of the pavement, prevent loose stones from falling off, and prevent water from infiltrating, and can delay the aging of asphalt on the pavement, reduce the temperature of the asphalt surface layer, and improve the quality of the pavement. Anti-skid performance, rapid blackening of the pavement, significantly improving the appearance of the pavement,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D195/00C09D133/04C09D5/14C09D7/65C09D7/61C09D7/63C09D7/43
CPCC09D195/005C09D5/14C09D7/65C09D7/61C09D7/63C09D7/43C08L2205/035C08L5/02C08L53/02C08L33/04C08L11/02C08K3/346C08K5/098C08K3/34C08K13/02
Inventor 范兴华高明刘云全吴玉辉吴永付朱建平李洪斌霍继辉侯震韩冰
Owner 辽宁省交通科学研究院有限责任公司
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