CN110655798A - Asphalt pavement hydrophobic material and preparation method thereof - Google Patents
Asphalt pavement hydrophobic material and preparation method thereof Download PDFInfo
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- CN110655798A CN110655798A CN201910994380.8A CN201910994380A CN110655798A CN 110655798 A CN110655798 A CN 110655798A CN 201910994380 A CN201910994380 A CN 201910994380A CN 110655798 A CN110655798 A CN 110655798A
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- asphalt pavement
- snow
- hydrophobic material
- melting agent
- asphalt
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L95/00—Compositions of bituminous materials, e.g. asphalt, tar, pitch
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- Civil Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Road Paving Structures (AREA)
Abstract
A hydrophobic material for asphalt pavement and a preparation method thereof. The hydrophobic material consists of the following raw materials in parts by weight: 100 parts of modified emulsified asphalt, 10-12 parts of 35% sodium acetate, 20 parts of zeolite powder, 10-12 parts of sodium methyl silicate and 3-4 parts of methyl silicone resin. The invention has the following effects: after the hydrophobic material is sprayed on the asphalt pavement, a hydrophobic layer is formed on the surface of the asphalt pavement, so that the contact angle between the asphalt pavement and an ice surface is increased, and the binding power between the asphalt pavement and the ice surface is reduced; the ice surface and the asphalt pavement can be separated and the freezing point can be reduced through stronger hydrophobic ice suppression capacity, so that the snow and ice can be actively melted; in addition, the zeolite powder can solve the problem of reduction of the road surface friction coefficient caused by the snow-melting agent, thereby ensuring that the vehicle can normally run in the frozen state of the road surface in winter. The zeolite powder is used for adsorbing the snow-melting agent, so that the effect of slowly releasing the snow-melting agent can be achieved, the snow-melting agent can be better stored, and the durability of the material can be prolonged.
Description
Technical Field
The invention belongs to the technical field of hydrophobic materials and preparation thereof, and particularly relates to a hydrophobic material for an asphalt pavement and a preparation method thereof.
Background
The road surface icing has obvious influence on the road traffic safety, and the previous research results show that: the hydrophobic capacity of the pavement is improved, the icing time of the pavement in cold weather can be delayed, the cohesive force between ice and the pavement is reduced, and therefore the deicing time is reduced. Because the phenomenon of snow accumulation and icing on the road surface in China in winter is common, the road surface adhesion coefficient is greatly reduced, and the anti-skid performance is greatly reduced, so that traffic accidents are easily caused. Therefore, the hydrophobic capacity of the pavement is improved, and the snow and ice melting effect of the pavement is improved.
At present, most of highway pavements in China still adopt asphalt pavements. When snow and ice are accumulated on the asphalt pavement, the conventional snow and ice removing methods such as spreading of a snow melting agent, mechanical ice removing and the like are generally adopted, but the methods have the defects of environmental pollution, poor pavement protection capability, low operation speed and the like, so that the aim of actively melting snow and ice cannot be fulfilled.
Disclosure of Invention
In order to solve the problems, the invention aims to provide a hydrophobic material for an asphalt pavement and a preparation method thereof.
In order to achieve the purpose, the asphalt pavement hydrophobic material provided by the invention comprises the following raw materials in parts by weight:
the methyl silicone resin adopts methyl vinyl MQ silicone resin or methyl hydrogen-containing MQ silicone resin.
The preparation method of the asphalt pavement hydrophobic material provided by the invention comprises the following steps in sequence:
1) weighing the raw materials in proportion, completely immersing zeolite powder in 35% sodium acetate serving as a snow-melting agent, uniformly mixing, standing for 24 hours, filtering, and drying a filtrate to prepare the slow-release snow-melting agent;
2) adding the slow-release snow-melting agent into modified emulsified asphalt serving as an adhesive and uniformly mixing to prepare modified emulsified asphalt containing the slow-release snow-melting agent;
3) and adding sodium methyl silicate and methyl silicone resin serving as hydrophobing agents into the modified emulsified asphalt containing the slow-release snow-melting agent, and uniformly mixing to obtain the asphalt pavement hydrophobic material.
The asphalt pavement hydrophobic material and the preparation method provided by the invention have the beneficial effects that:
after the hydrophobic material is sprayed on the asphalt pavement, a hydrophobic layer is formed on the surface of the asphalt pavement, so that the contact angle between the asphalt pavement and an ice surface is increased, and the binding power between the asphalt pavement and the ice surface is reduced; the ice surface and the asphalt pavement can be separated and the freezing point can be reduced through stronger hydrophobic ice suppression capacity, so that the snow and ice can be actively melted; in addition, the zeolite powder can solve the problem of reduction of the road surface friction coefficient caused by the snow-melting agent, thereby ensuring that the vehicle can normally run in the frozen state of the road surface in winter. Meanwhile, the emulsified asphalt spreader can be used for direct spraying, so that the operation is simple and convenient, the spraying efficiency is high, the environment is protected, the efficiency is high, and the energy consumption is low; the zeolite powder is used for adsorbing the snow-melting agent, so that the snow-melting agent can be slowly released and better stored, the durability of the material can be prolonged, and the material has higher economy, so that the material has wider application value in road engineering.
Detailed Description
The asphalt pavement hydrophobic material and the preparation method provided by the invention are further described in detail by combining the examples.
Example 1
The asphalt pavement hydrophobic material provided by the embodiment is composed of the following raw materials:
the preparation method comprises the following steps:
1) weighing the raw materials in proportion, completely immersing 20g of zeolite powder in 10g of 35% sodium acetate which is put into a container and is used as a snow melting agent, wherein the liquid level of the sodium acetate is about 1cm higher than the surface of the zeolite powder, uniformly mixing the sodium acetate with a stirrer, standing for 24 hours, and finally filtering and drying the filtrate to prepare the slow-release snow melting agent;
2) adding the slow-release snow-melting agent into 100g of modified emulsified asphalt serving as an adhesive and uniformly mixing to prepare modified emulsified asphalt containing the slow-release snow-melting agent;
3) 10g of sodium methyl silicate and 3g of methyl vinyl MQ silicon resin which are used as hydrophobing agents are added into the modified emulsified asphalt containing the slow-release snow-melting agent and are uniformly mixed, and then the asphalt pavement hydrophobic material can be prepared.
Example 2
The asphalt pavement hydrophobic material provided by the embodiment is composed of the following raw materials:
the preparation method comprises the following steps:
1) weighing the raw materials in proportion, completely immersing 20g of zeolite powder in 11g of 35% sodium acetate which is put into a container, wherein the liquid level of the sodium acetate is about 1cm higher than the surface of the zeolite powder, uniformly mixing the sodium acetate with a stirrer, standing for 24 hours, and finally filtering and drying the filtrate to prepare the slow-release snow-melting agent;
2) adding the slow-release snow-melting agent into 100g of modified emulsified asphalt and uniformly mixing to prepare modified emulsified asphalt containing the slow-release snow-melting agent;
3) 11g of sodium methyl silicate serving as a hydrophobic agent and 3.5g of methyl hydrogen-containing MQ silicon resin are added into the modified emulsified asphalt containing the slow-release snow-melting agent and are uniformly mixed, so that the asphalt pavement hydrophobic material can be prepared.
Example 3
The asphalt pavement hydrophobic material provided by the embodiment is composed of the following raw materials:
the preparation method comprises the following steps:
1) weighing the raw materials in proportion, completely immersing 20g of zeolite powder in 12g of 35% sodium acetate which is put into a container, wherein the liquid level of the sodium acetate is about 1cm higher than the surface of the zeolite powder, uniformly mixing the sodium acetate with a stirrer, standing for 24 hours, and finally filtering and drying the filtrate to prepare the slow-release snow-melting agent;
2) adding the slow-release snow-melting agent into 100g of modified emulsified asphalt and uniformly mixing to prepare modified emulsified asphalt containing the slow-release snow-melting agent;
3) and adding 12g of sodium methyl silicate serving as a hydrophobic agent and 4g of methyl vinyl MQ silicon resin into the modified emulsified asphalt containing the slow-release snow-melting agent, and uniformly mixing to obtain the asphalt pavement hydrophobic material.
The method of using the hydrophobic material for asphalt pavement provided by the invention is explained as follows:
1. leveling the asphalt pavement to be sprayed with the asphalt pavement hydrophobic material, removing impurities and washing the asphalt pavement to be cleaned with water;
2. the asphalt pavement hydrophobic material prepared in the embodiment is uniformly sprayed on the asphalt pavement by using an emulsified asphalt spreader, a hydrophobic layer is formed on the asphalt pavement after the asphalt pavement hydrophobic material is demulsified and dried, and the asphalt pavement can be used after standing for a period of time.
In order to verify the effect of the asphalt pavement hydrophobic material provided by the invention, the following experiments are carried out: the ice and snow are respectively placed on the asphalt pavement provided with the hydrophobic layer and the asphalt pavement not sprayed with the asphalt pavement hydrophobic material, and the ice and snow on the asphalt pavement provided with the hydrophobic layer are found to be melted after 24 hours at the temperature of minus 2 ℃, while the asphalt pavement not sprayed with the asphalt pavement hydrophobic material still has a layer of thin ice, so that the asphalt pavement hydrophobic material provided by the invention can effectively increase the contact angle between water and the pavement, reduce the adhesive force between the ice surface and the pavement, and the effect is in a stable state in a multiple circulation experiment; in addition, the asphalt pavement hydrophobic material provided by the invention has obvious snow melting and deicing effects in a small snow state.
Claims (3)
1. The asphalt pavement hydrophobic material is characterized in that: the asphalt pavement hydrophobic material is prepared from the following raw materials in parts by weight:
2. the hydrophobic material for asphalt pavements according to claim 1, characterized in that: the methyl silicone resin adopts methyl vinyl MQ silicone resin or methyl hydrogen-containing MQ silicone resin.
3. A method for preparing the hydrophobic material for asphalt pavement according to claim 1, which comprises the following steps: the preparation method comprises the following steps which are carried out in sequence:
1) weighing the raw materials in proportion, completely immersing zeolite powder in 35% sodium acetate serving as a snow-melting agent, uniformly mixing, standing for 24 hours, filtering, and drying a filtrate to prepare the slow-release snow-melting agent;
2) adding the slow-release snow-melting agent into the modified emulsified asphalt and uniformly mixing to prepare the modified emulsified asphalt containing the slow-release snow-melting agent;
3) and adding sodium methyl silicate and methyl silicone resin serving as hydrophobing agents into the modified emulsified asphalt containing the slow-release snow-melting agent, and uniformly mixing to obtain the asphalt pavement hydrophobic material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910994380.8A CN110655798A (en) | 2019-10-16 | 2019-10-16 | Asphalt pavement hydrophobic material and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910994380.8A CN110655798A (en) | 2019-10-16 | 2019-10-16 | Asphalt pavement hydrophobic material and preparation method thereof |
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| CN110655798A true CN110655798A (en) | 2020-01-07 |
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| CN201910994380.8A Pending CN110655798A (en) | 2019-10-16 | 2019-10-16 | Asphalt pavement hydrophobic material and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114808482A (en) * | 2022-05-24 | 2022-07-29 | 哈尔滨正罡科技开发有限公司 | Ice and snow melting waterproof roll and preparation method thereof |
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| EP0422753A1 (en) * | 1989-10-13 | 1991-04-17 | MANNESMANN Aktiengesellschaft | Process for preparing a particular mixture having hydrophobic properties |
| CN104987854A (en) * | 2015-06-19 | 2015-10-21 | 哈尔滨工业大学 | Padding used for overcoming ice-asphalt road bonding effect in high and cold region and preparing method thereof |
| CN106699230A (en) * | 2016-12-08 | 2017-05-24 | 长安大学 | Colorless moisture damage resistance hydrophobic coating material of asphalt pavement and preparation method of coating material |
| CN107522430A (en) * | 2017-10-19 | 2017-12-29 | 谢新昇 | A kind of anti-freezing ice asphalt and preparation method thereof |
| CN109233600A (en) * | 2018-09-11 | 2019-01-18 | 武汉市市政建设集团有限公司 | A kind of long-acting hydrophobic type suppression ice coating and preparation method thereof |
| CN110305626A (en) * | 2019-06-18 | 2019-10-08 | 河南省交通规划设计研究院股份有限公司 | A kind of composite snow-melting salt modifying agent and the surfacing rubber-asphalt mixture containing the modifying agent |
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2019
- 2019-10-16 CN CN201910994380.8A patent/CN110655798A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0422753A1 (en) * | 1989-10-13 | 1991-04-17 | MANNESMANN Aktiengesellschaft | Process for preparing a particular mixture having hydrophobic properties |
| CN104987854A (en) * | 2015-06-19 | 2015-10-21 | 哈尔滨工业大学 | Padding used for overcoming ice-asphalt road bonding effect in high and cold region and preparing method thereof |
| CN106699230A (en) * | 2016-12-08 | 2017-05-24 | 长安大学 | Colorless moisture damage resistance hydrophobic coating material of asphalt pavement and preparation method of coating material |
| CN107522430A (en) * | 2017-10-19 | 2017-12-29 | 谢新昇 | A kind of anti-freezing ice asphalt and preparation method thereof |
| CN109233600A (en) * | 2018-09-11 | 2019-01-18 | 武汉市市政建设集团有限公司 | A kind of long-acting hydrophobic type suppression ice coating and preparation method thereof |
| CN110305626A (en) * | 2019-06-18 | 2019-10-08 | 河南省交通规划设计研究院股份有限公司 | A kind of composite snow-melting salt modifying agent and the surfacing rubber-asphalt mixture containing the modifying agent |
Non-Patent Citations (2)
| Title |
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| 张业茂: "沥青路面脱粘抑冰材料研发及工程应用技术研究", 《中国博士学位论文全文数据库 工程科技Ⅱ辑》 * |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114808482A (en) * | 2022-05-24 | 2022-07-29 | 哈尔滨正罡科技开发有限公司 | Ice and snow melting waterproof roll and preparation method thereof |
| CN114808482B (en) * | 2022-05-24 | 2022-11-01 | 哈尔滨正罡科技开发有限公司 | Ice and snow melting waterproof roll and preparation method thereof |
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Application publication date: 20200107 |