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Epoxy modified emulsified asphalt sand-fog-containing sealing layer material and preparation method and application thereof

A technology of fog seal layer material and emulsified asphalt, which is applied in the direction of building insulation materials, on-site coagulation pavement, building components, etc., and can solve the problem of difficult to meet the preventive maintenance requirements of asphalt pavement and the bond strength between cement and base surface Low, emulsified asphalt demulsification and agglomeration problems, to achieve the effect suitable for industrial scale production, good embedding effect, and good compatibility

Inactive Publication Date: 2018-05-25
重庆市智翔铺道技术工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, at present, the traditional sand mist-containing seal layer in my country generally adopts ordinary emulsified asphalt, SBR modified emulsified asphalt or SBS modified emulsified asphalt. Preventive Maintenance Requirements for Expressway Asphalt Pavement at Present Stage
[0005] In order to solve the above technical problems, the invention patent application with the publication number CN105985656A discloses a kind of emulsified asphalt which is modified by water-based epoxy resin emulsion to emulsified asphalt mixed with amine curing agent, which can effectively improve the base surface viscosity of emulsified asphalt. However, the compatibility between cationic emulsified asphalt and water-based epoxy emulsion is not good, and the addition of water-based epoxy emulsion containing amine curing agent will lead to premature demulsification and agglomeration of emulsified asphalt

Method used

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  • Epoxy modified emulsified asphalt sand-fog-containing sealing layer material and preparation method and application thereof
  • Epoxy modified emulsified asphalt sand-fog-containing sealing layer material and preparation method and application thereof

Examples

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Effect test

Embodiment 1

[0042] Epoxy modified emulsified asphalt containing sand mist sealing layer material, its composition is: 32.5 ordinary Portland cement 10 parts, 70# emulsified asphalt, SBS modified 70# emulsified asphalt 80 parts, E51 epoxy resin 30 parts, aliphatic 30 parts of polyamine curing agent, 3 parts of silicone waterproof penetrating agent, 2 parts of polyether modified silicon defoamer, 2 parts of sodium polyacrylate dispersant, 10 parts of alkylphenol polyoxyethylene ether TX-10, granules 30 parts of quartz sand with a diameter of 40-120 mesh and 10 parts of silicon dioxide; all in parts by mass.

[0043] The preparation method of the sand mist-containing sealing layer material, its specific steps are:

[0044] A: Heat the emulsified asphalt and epoxy resin to 40°C respectively, then shear at a shear rate of 600 rpm, then add surfactant to the emulsified asphalt, after shearing for 3 minutes, add epoxy to the emulsified asphalt Resin and filler, then shear 45min at a shear rate ...

Embodiment 2

[0049] Epoxy modified emulsified asphalt containing sand mist sealing layer material, its composition is: 20 parts of 32.5 ordinary Portland cement, 100 parts of SBR latex modified 70# emulsified asphalt, 15 parts of E40 epoxy resin, aromatic polyamine 15 parts of curing agent, 10 parts of silicone waterproof penetrating agent, 5 parts of polyether modified silicon defoamer, 5 parts of sodium polyacrylate dispersant, NP-1020 parts of alkylphenol polyoxyethylene ether, the particle size is 20 parts of 40-120 mesh carborundum and 5 parts of bentonite 60 parts; all in parts by mass.

[0050] The preparation method of the sand mist-containing sealing layer material, its specific steps are:

[0051] A: Heat the emulsified asphalt and epoxy resin to 60°C, then shear at a shear rate of 500 rpm, then add surfactant to the emulsified asphalt, after shearing for 5 minutes, add epoxy to the emulsified asphalt Resin and filler, then shear 30min at a shear rate of 8000 rpm / min to obtain com...

Embodiment 3

[0056] Epoxy modified emulsified asphalt containing sand mist sealing layer material, its composition is: 10 parts of 32.5 ordinary Portland cement, 120 parts of 70# emulsified asphalt, 15 parts of E20 epoxy resin, 20 parts of aliphatic polyamine curing agent , 2 parts of silicone waterproof penetrating agent, 3 parts of polyether modified silicon defoamer, 4 parts of sodium polyacrylate dispersant, 15 parts of fatty alcohol polyoxyethylene ether AEO-9, emery with a particle size of 40-120 mesh 25 parts and 8 parts of kaolin; all in parts by mass.

[0057] The preparation method of the sand mist-containing sealing layer material, its specific steps are:

[0058] A: Heat the emulsified asphalt and epoxy resin to 45°C respectively, then shear at a shear rate of 600 rpm, then add surfactant to the emulsified asphalt, after shearing for 4 minutes, add epoxy to the emulsified asphalt Resin and filler, then shear 40min at a shear rate of 6000 rpm / min to obtain component A of epoxy ...

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Abstract

The invention belongs to the technical field of compositions of asphalt materials, and particularly relates to an epoxy modified emulsified asphalt sand-fog-containing sealing layer material. The sand-fog-containing sealing layer material comprises the following main components: emulsified asphalt, epoxy resin and a water-soluble curing agent. The material is good in compatibility, a prepared sand-fog-containing sealing layer is uniform, and does not have accumulated oil or oil spots; the strength of the material is high; the anti-penetrability performance is good; the skid resistance is good;and the wear resistance is also good. The sand-fog-containing sealing layer prepared from the material has good inlaying effect on the original pavement. The preparation method is simple and speedy,convenient to operate and suitable for industrialized large-scale production.

Description

technical field [0001] The invention belongs to the technical field of asphalt material compositions, and in particular relates to an epoxy-modified emulsified asphalt-containing sand-mist sealing layer material and its preparation method and application. Background technique [0002] By the end of 2016, the total mileage of highways in my country reached 4.6963 million kilometers, and the mileage of road maintenance reached 4.59 million kilometers, accounting for 97.7% of the total mileage of highways. The huge market demand of the maintenance industry. [0003] The sand-containing fog seal is a mixture composed of modified emulsified asphalt or coal tar pitch base material, clay, and polymer additives as the main components of the fog seal material and sand. A special high-pressure sprayer with sand mist seal is used to spray a thin layer on the asphalt pavement, which can effectively seal the micro-cracks of the pavement, prevent water seepage, improve waterproof performa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L95/00C08L63/00C08L83/12C08L33/02C08L71/02C08L53/02C08K3/36C08K3/34E01C7/35
CPCC08L95/00C08L2205/035E01C7/353C08L63/00C08L83/12C08L33/02C08L71/02C08L53/02C08K3/36C08K3/346
Inventor 周启伟徐光红郝增恒吴雪柳王民杨波徐建晖胡德勇陈诚叶伟
Owner 重庆市智翔铺道技术工程有限公司
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