Emulsion type asphalt anti-sticking separant and preparation method thereof

Abstract

The invention relates to the technical field of asphalt anti-sticking separant preparation, in particular to an emulsified asphalt anti-sticking separant and a preparation method thereof.The emulsified asphalt anti-sticking separant is prepared from, by weight, 180-240 parts of unsaturated fatty acid, 25-40 parts of surfactant and 30-50 parts of water for standby application, by designing the emulsified asphalt anti-sticking separant and the preparation method thereof, the asphalt anti-sticking separant is simple in preparation process, low in price, good in stability, long in storage time, capable of being prepared anytime and anywhere, environmentally friendly and free of pollution, and the problems that a traditional separant is too high in use cost and not environmentally friendly are well solved; the emulsified separant prepared by the method can be used after being hydrolyzed at normal temperature, can be quickly emulsified and dispersed in water, is uniform in emulsion microcosmic particle size distribution and excellent in hydrolysis performance, and does not influence the pavement performance of an asphalt pavement.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of asphalt anti-sticking release agent preparation, in particular to an emulsified asphalt anti-sticking release agent and a preparation method thereof. BACKGROUND

[0002] The rubber tire road roller is one of the essential compaction equipment for asphalt layer construction. In the asphalt concrete compaction construction, in order to avoid the quality problems such as road surface pit and groove and rough surface caused by the adhesion of the tire to the asphalt concrete during the tire traveling and compaction on the asphalt pavement, a layer of release agent is usually intermittently brushed on the surface of the tire to block the adhesion of the tire to the asphalt concrete. The release agent is usually mixed by diesel oil and mineral oil or edible oil, which is collectively referred to as diesel oil mixed release agent. The purpose of adding diesel oil is to reduce the viscosity of the mineral oil or edible oil and dilute the adhered asphalt on the tire, so as to facilitate the manual brushing. Although the diesel oil mixed release agent plays a role in separating the tire from the asphalt concrete, it also has many problems. On the one hand, the release agent contains diesel oil, which has the effect of diluting asphalt. Once the excessive diesel oil in the brushing process invades the asphalt mixture, it will dilute the asphalt in the asphalt mixture, causing the asphalt concrete to be loose and non-adhesive, and thus causing more serious quality problems of the road surface. On the other hand, the use cost is high. A normal construction time of one shift of a rubber tire road roller will use 35 liters of such release agent. According to the calculation of the cheapest salad oil at present, 1 liter is 9 yuan, and the use cost of the release agent of one rubber tire road roller is 315 yuan per shift. Therefore, from the aspects of use cost and quality influence, the diesel oil mixed release agent used at present is not ideal.

[0003] In view of the above, the present application solves the existing problems by designing an emulsified asphalt anti-sticking release agent and a preparation method thereof. SUMMARY

[0004] In order to solve the problems of affecting the road performance of the asphalt pavement and the quality hidden danger of the traditional diesel oil mixed release agent to the asphalt pavement, the purpose of the present application is to provide an emulsified asphalt anti-sticking release agent and a preparation method thereof, so as to solve the above-mentioned problems.

[0005] In order to achieve the above-mentioned purpose, the present application provides the following technical scheme: An emulsified asphalt anti-sticking release agent, characterized in that it comprises unsaturated fatty acid, surfactant and water, and the weight fractions of the components are as follows: 180-240 parts of unsaturated fatty acid, 25-40 parts of surfactant and 30-50 parts of water.

[0006] As a preferred scheme of the present application, the unsaturated fatty acid is salad oil, the surfactant is household detergent, and the water is pure water.

[0007] A preparation method of an emulsified asphalt anti-sticking release agent, comprising the following steps: After the weighed unsaturated fatty acid, surfactant and water are mixed in the reaction kettle at normal temperature and pressure, the mixture is stirred at 300-400 r / min for 4-5 min, and after sufficient stirring, the mixture is a milky white liquid, thus the emulsified asphalt anti-sticking release agent is prepared.

[0008] As a preferred scheme of the present application, the unsaturated fatty acid, surfactant and water are mixed in a weight ratio of 40:7:8, i.e. 200 parts of unsaturated fatty acid, 35 parts of surfactant and 40 parts of water.

[0009] As a preferred scheme of the present application, the unsaturated fatty acid, surfactant and water are mixed in a weight ratio of 40:7:7, i.e. 200 parts of unsaturated fatty acid, 35 parts of surfactant and 35 parts of water.

[0010] As a preferred scheme of the present application, the unsaturated fatty acid, surfactant and water are mixed in a weight ratio of 40:8:7, i.e. 200 parts of unsaturated fatty acid, 40 parts of surfactant and 35 parts of water.

[0011] As a preferred scheme of the present application, the unsaturated fatty acid, surfactant and water are mixed in a weight ratio of 40:8:6, i.e. 200 parts of unsaturated fatty acid, 40 parts of surfactant and 30 parts of water.

[0012] As a preferred scheme of the present application, the unsaturated fatty acid, surfactant and water are mixed in a weight ratio of 40:8:10, i.e. 200 parts of unsaturated fatty acid, 40 parts of surfactant and 50 parts of water.

[0013] As a preferred scheme of the present application, the unsaturated fatty acid, surfactant and water are mixed in a weight ratio of 40:5:6, i.e. 200 parts of unsaturated fatty acid, 25 parts of surfactant and 30 parts of water.

[0014] As a preferred scheme of the present application, the emulsified asphalt anti-sticking release agent is applied to the anti-sticking release between the tire of a rubber-tired road roller and asphalt mixture and the anti-sticking release between the inner plate of a truck carriage and asphalt mixture in asphalt pavement construction, and the specific steps are as follows: The asphalt release agent and water are mixed and stirred uniformly in a mass ratio of 1:5-1:15, and then are placed in a spraying device and uniformly sprayed on the surface of the tire of the rubber-tired road roller or the inner plate of the truck carriage.

[0015] Compared with the prior art, the present application has the following advantages: In the present application, by designing the emulsified asphalt anti-sticking release agent and its preparation method, the asphalt anti-sticking release agent has the advantages of simple preparation process, low price, good stability, long storage, and can be prepared anytime and anywhere, and is environment-friendly and non-polluting, which solves the problems of high use cost and environmental pollution of traditional release agents; and the emulsified release agent prepared by the method can be used after hydrolysis at room temperature, can be rapidly emulsified and dispersed in water, has uniform micro-particle size distribution, has excellent hydrolysis performance, and does not affect the road performance of the asphalt pavement, effectively solving the quality hidden danger of the traditional diesel mixed release agent to the asphalt pavement. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the present application will be clearly and completely described below, obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments, based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the present application.

[0017] The present application provides a technical solution: An emulsified asphalt anti-sticking release agent, characterized in that it comprises unsaturated fatty acids, surfactants and water, and the proportions of the components are as follows: 180-240 parts of unsaturated fatty acids, 25-40 parts of surfactants and 30-50 parts of water.

[0018] As a further preferred scheme of the present application, the unsaturated fatty acids are salad oil, the surfactants are household detergent, and the water is pure water.

[0019] The specific implementation method of the present application will be described in detail below.

[0020] Example 1: unsaturated fatty acids, surfactants and water are mixed in a weight ratio of 40:7:8, i.e. 200 parts of unsaturated fatty acids, 35 parts of surfactants and 40 parts of water, the three raw materials are added to the reaction kettle at normal temperature and pressure for mixing, and the mixed liquid is stirred at 300-400 r / min for 4-5 min, after sufficient stirring, the mixed material is a milky white liquid, i.e. an emulsified asphalt anti-sticking release agent is prepared.

[0021] Example 2: unsaturated fatty acids, surfactants and water are mixed in a weight ratio of 40:7:7, i.e. 200 parts of unsaturated fatty acids, 35 parts of surfactants and 35 parts of water, the three raw materials are added to the reaction kettle at normal temperature and pressure for mixing, and the mixed liquid is stirred at 300-400 r / min for 4-5 min, after sufficient stirring, the mixed material is a milky white liquid, i.e. an emulsified asphalt anti-sticking release agent is prepared.

[0022] Example 3: unsaturated fatty acids, surfactants and water are weighed and mixed in a ratio of 40:8:7 by weight, i.e. 200 parts of unsaturated fatty acids, 40 parts of surfactants and 35 parts of water, the three raw materials are mixed in a reaction kettle at normal temperature and pressure, and then stirred at 300-400 r / min for 4-5 min, after sufficient stirring, the mixture is a milky white liquid, i.e. an emulsified asphalt anti-sticking separator is prepared.

[0023] Example 4: unsaturated fatty acids, surfactants and water are weighed and mixed in a ratio of 40:8:6 by weight, i.e. 200 parts of unsaturated fatty acids, 40 parts of surfactants and 30 parts of water, the three raw materials are mixed in a reaction kettle at normal temperature and pressure, and then stirred at 300-400 r / min for 4-5 min, after sufficient stirring, the mixture is a milky white liquid, i.e. an emulsified asphalt anti-sticking separator is prepared.

[0024] Example 5: unsaturated fatty acids, surfactants and water are weighed and mixed in a ratio of 40:8:10 by weight, i.e. 200 parts of unsaturated fatty acids, 40 parts of surfactants and 50 parts of water, the three raw materials are mixed in a reaction kettle at normal temperature and pressure, and then stirred at 300-400 r / min for 4-5 min, after sufficient stirring, the mixture is a milky white liquid, i.e. an emulsified asphalt anti-sticking separator is prepared.

[0025] Example 6: unsaturated fatty acids, surfactants and water are weighed and mixed in a ratio of 40:5:6 by weight, i.e. 200 parts of unsaturated fatty acids, 25 parts of surfactants and 30 parts of water, the three raw materials are mixed in a reaction kettle at normal temperature and pressure, and then stirred at 300-400 r / min for 4-5 min, after sufficient stirring, the mixture is a milky white liquid, i.e. an emulsified asphalt anti-sticking separator is prepared.

[0026] The emulsified asphalt anti-sticking separators prepared in Examples 1, 2, 3, 4, 5 and 6 are respectively used in the construction of the lower layer of asphalt, because the base asphalt used in the asphalt mixture has a small viscosity, the emulsified asphalt anti-sticking separator prepared according to the present application is mixed with water at a ratio of 1:15, and then stirred uniformly, and then placed in a spraying device and uniformly sprayed on the surface of the tire of the rubber-tired road roller, after the spraying is completed, the asphalt mixture is directly constructed and rolled, and it is detected that the emulsified asphalt anti-sticking separator prepared by mixing the three raw materials in Example 1 can satisfy the non-sticking working of the rubber-tired road roller tire for 20 min after one spraying, has a good isolation effect, and does not affect the road performance of the asphalt pavement.

[0027] When the upper layer of the construction asphalt is prepared, because the modified asphalt is used in the asphalt mixture, the viscosity is larger, the emulsified asphalt anti-sticking release agent prepared by the application is stirred uniformly at a ratio of 1:5 with water, is placed in a spraying device, is uniformly sprayed on the surface of the tire of the rubber tire roller, after the spraying surface is finished, the construction and rolling of the asphalt mixture are directly carried out, through detection, the emulsified asphalt anti-sticking release agent prepared by mixing the three raw materials in example 1 can satisfy that the rubber tire roller tire is not sticky for 10 min after spraying once, the isolation effect is good, and the road performance of the asphalt pavement is not affected.

[0028] The above is only the preferred specific embodiment of the application, but the protection scope of the application is not limited to this, any person skilled in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the application within the technical range disclosed by the application, which should be covered in the protection scope of the application.

Claims

1. An emulsified asphalt anti-sticking release agent, characterized in that, It includes unsaturated fatty acids, surfactants and water, and each component is expressed as follows by weight fraction: weigh 180-240 parts of unsaturated fatty acids, 25-40 parts of surfactants and 30-50 parts of water for later use.

2. The emulsified asphalt anti-sticking release agent according to claim 1, characterized in that, The unsaturated fatty acid is salad oil, the surfactant is household dish soap, and the water is purified water.

3. The preparation method of the emulsified asphalt anti-sticking release agent according to claim 2, specifically comprising the following steps: The three raw materials, namely unsaturated fatty acids, surfactants and water, are weighed and added to a reaction vessel at room temperature and pressure. The mixture is then stirred at 300-400 r / min for 4-5 minutes. After thorough stirring, the mixture becomes a milky white liquid, which is the emulsified asphalt anti-sticking release agent.

4. The preparation method of the emulsified asphalt anti-sticking release agent according to claim 3, characterized in that, The unsaturated fatty acids, surfactants, and water are mixed in a weight ratio of 40:7:8, i.e., 200 parts of unsaturated fatty acids, 35 parts of surfactants, and 40 parts of water.

5. The preparation method of the emulsified asphalt anti-sticking release agent according to claim 3, characterized in that, The unsaturated fatty acids, surfactants, and water are mixed in a weight ratio of 40:7:7, i.e., 200 parts of unsaturated fatty acids, 35 parts of surfactants, and 35 parts of water.

6. The preparation method of the emulsified asphalt anti-sticking release agent according to claim 3, characterized in that, The unsaturated fatty acids, surfactants, and water are mixed in a weight ratio of 40:8:7, i.e., 200 parts of unsaturated fatty acids, 40 parts of surfactants, and 35 parts of water.

7. The preparation method of the emulsified asphalt anti-sticking release agent according to claim 3, characterized in that, The unsaturated fatty acids, surfactants, and water are mixed in a weight ratio of 40:8:6, i.e., 200 parts of unsaturated fatty acids, 40 parts of surfactants, and 30 parts of water.

8. The preparation method of the emulsified asphalt anti-sticking release agent according to claim 3, characterized in that, The unsaturated fatty acids, surfactants, and water are mixed in a weight ratio of 40:8:10, i.e., 200 parts of unsaturated fatty acids, 40 parts of surfactants, and 50 parts of water.

9. The preparation method of the emulsified asphalt anti-sticking release agent according to claim 3, characterized in that, The unsaturated fatty acids, surfactants, and water are mixed in a weight ratio of 40:5:6, i.e., 200 parts of unsaturated fatty acids, 25 parts of surfactants, and 30 parts of water.

10. The preparation method of the emulsified asphalt anti-sticking release agent according to claim 3, characterized in that, The emulsified asphalt anti-sticking and separating agent is applied to prevent adhesion between the tires of rubber-tired rollers and the asphalt mixture during asphalt pavement construction, as well as to prevent adhesion between the inner panel of the asphalt mixture transport vehicle and the asphalt mixture. The specific steps are as follows: After mixing the anti-sticking asphalt release agent with water at a mass ratio of 1:5 to 1:15 and stirring evenly, place it in a spraying device and spray it evenly on the surface of the tires of the tire roller or the inner panel of the asphalt mixture transport vehicle.