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Infiltrating type emulsifiable asphalt and preparation method thereof

An emulsified asphalt, soaking type technology, applied in building components, building insulation materials, buildings, etc., can solve the problems of brittleness, poor temperature stability, and restrictions on the use of asphalt pavement, and achieve good adhesion

Pending Publication Date: 2022-04-26
王嫦玉
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In addition, with the development of China's highway traffic, my country's highway construction is entering a period of rapid development. New conditions such as high speed, heavy load and bearing complex stress have put forward higher requirements for high-grade road surfaces, but asphalt materials on the market Poor temperature stability and brittleness in winter are common problems, which seriously restrict the use of asphalt pavement

Method used

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  • Infiltrating type emulsifiable asphalt and preparation method thereof
  • Infiltrating type emulsifiable asphalt and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0037] An infiltrating emulsifiable asphalt mainly includes, by weight, 100 parts of petroleum asphalt, 30 parts of magnetic nanosheets, 16 parts of modified silica sol, 0.6 parts of rubber operating oil, and 0.09 parts of sulfur.

[0038] A preparation method of soakable emulsifiable asphalt, the preparation method of said soakable emulsifiable asphalt mainly comprises the following preparation steps:

[0039] (1) Add tetraethyl orthosilicate, absolute ethanol, deionized water, and ammonia water with a mass fraction of 25% into a beaker at a mass ratio of 1:8.2:0.2:0.05, stir at 30°C and 100rpm for 3 hours, and then Aging for 6 days to obtain nano-silica sol;

[0040] (2) Add nano-silica sol into the container, add bis(triisopropylsilyl)amine with 0.25 times the mass of nano-silica sol, stir at 30°C and 200rpm for 3h, and age at room temperature for 6d to obtain Lipophilic nano silica sol;

[0041] (3) Add nano-silica sol into the container, add glycidoxypropyltrimethoxysil...

Embodiment 2

[0050] An infiltrating emulsifiable asphalt mainly includes, by weight, 160 parts of petroleum asphalt, 35 parts of magnetic nanosheets, 19 parts of modified silica sol, 1.05 parts of rubber operating oil, and 0.14 parts of sulfur.

[0051] A preparation method of soakable emulsifiable asphalt, the preparation method of said soakable emulsifiable asphalt mainly comprises the following preparation steps:

[0052] (1) Add tetraethyl orthosilicate, absolute ethanol, deionized water and ammonia water with a mass fraction of 26% in a beaker at a mass ratio of 1:8.41:0.24:0.057, stir at 30°C and 160rpm for 2.5h, and then Under aging for 7 days to obtain nano-silica sol;

[0053] (2) Add the nano-silica sol into the container, add bis(triisopropylsilyl)amine with 0.29 times the mass of the nano-silica sol, stir at 35°C and 250rpm for 2.5h, and age at room temperature for 6d, Obtain lipophilic nano silica sol;

[0054] (3) Add the nano-silica sol into the container, add glycidoxypro...

Embodiment 3

[0063] A wetting type emulsifiable asphalt mainly includes, by weight, 200 parts of petroleum asphalt, 40 parts of magnetic nanosheets, 22 parts of modified silica sol, 2 parts of rubber operating oil, and 0.2 parts of sulfur.

[0064] A preparation method of soakable emulsifiable asphalt, the preparation method of said soakable emulsifiable asphalt mainly comprises the following preparation steps:

[0065](1) Add tetraethyl orthosilicate, absolute ethanol, deionized water and ammonia water with a mass fraction of 28% into a beaker at a mass ratio of 1:8.7:0.3:0.06, stir at 30°C and 200rpm for 2 hours, and then Aging for 7 days to obtain nano-silica sol;

[0066] (2) Add nano-silica sol into the container, add bis(triisopropylsilyl)amine with 0.33 times the mass of nano-silica sol, stir at 40°C and 300rpm for 2h, and age at room temperature for 7d to obtain Lipophilic nano silica sol;

[0067] (3) Put the nano-silica sol into the container, add glycidoxypropyltrimethoxysilan...

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Abstract

The invention discloses infiltrating type emulsifiable asphalt and a preparation method thereof, and relates to the technical field of asphalt. The preparation method comprises the following steps: firstly, enabling nano silicon dioxide, di (triisopropylsilyl) amine and epoxypropoxypropyltrimethoxysilane to react to prepare amphipathic double-spherical modified silicon dioxide sol which can emulsify asphalt and simultaneously drive the asphalt to enter tiny pores in the surface of a stone material, so that the asphalt has adhesion; then secondary modification is carried out, and chitosan and dodecane primary amine are introduced, so that the surface tension of the asphalt emulsion is reduced, and the adhesion of asphalt is improved; then, the expanded graphite is subjected to microwave ultrasonic stripping, mesoporous nanosheets are prepared, magnetic iron is deposited through pulse current assisted plasma sputtering, and magnetic nanosheets are obtained; and then, stirring the magnetic nanosheets and the modified asphalt emulsion in a magnetic field, and carrying out shearing treatment to form a three-dimensional network structure which has a low-temperature-resistant effect. The infiltrating type emulsifiable asphalt prepared by the invention has the effects of high adhesion and low temperature resistance.

Description

technical field [0001] The invention relates to the technical field of asphalt, in particular to a wetting type emulsifiable asphalt and a preparation method thereof. Background technique [0002] Asphalt pavement refers to various types of pavement paved with asphalt materials mixed with mineral materials. Asphalt binder improves the ability of paving aggregates to resist road damage from driving and natural factors, making the road smooth, less dusty, impermeable and durable. Therefore, asphalt pavement is the most widely used high-grade pavement in road construction. [0003] At present, the bonding effect between asphalt and stone is poor, and its adhesion is usually grade 2 to 3, which cannot meet the requirements of the specification. At this time, the usual treatment method is to add anti-stripping agent, cement or slaked lime and other additives. measures to improve the adhesion between asphalt and stone, and the asphalt prepared by the present invention is differen...

Claims

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Application Information

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IPC IPC(8): C08L95/00C08L5/08C08K3/36C08K9/06C08K7/24C08K9/02C08K3/06
CPCC08L95/00C08K2201/011C08L5/08C08K3/36C08K9/06C08K7/24C08K9/02C08K3/06
Inventor 王嫦玉
Owner 王嫦玉
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