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Emulsified asphalt cold paving material

A technology of emulsified asphalt and cold feed material, applied in the field of road engineering, can solve problems such as poor water resistance and fluidity, and achieve the effects of improving mechanical properties and water resistance, avoiding agglomeration, and improving mechanical resistance.

Inactive Publication Date: 2018-05-15
CHANGZHOU SIYU ENVIRONMENTAL PROTECTION MATERIAL SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The main technical problem to be solved by the present invention is to provide an emulsified asphalt cold patch for the shortcomings of traditional cold patch materials such as mechanical properties, water resistance and poor fluidity.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0025]Put the paraffin in a crucible, and heat it at 60°C until it melts completely to obtain molten paraffin. Put sodium peroxide and molten paraffin in a No. 1 beaker at a mass ratio of 1:10, and stir and mix with a glass rod for 20 minutes. , to obtain a mixed slurry, and then put the mixed slurry in a freeze pulverizer to freeze and pulverize to obtain coated sodium peroxide; add gelatin powder and water to a No. 2 beaker at a mass ratio of 1:100, and stir and mix with a glass rod for 30 minutes Finally, let it stand for swelling for 4 hours, then move the No. 2 beaker into a magnetic stirrer with digital display speed measurement and constant temperature, and heat and stir to dissolve for 50 minutes at a temperature of 65 ° C and a speed of 500 r / min to obtain a gelatin solution; mix linseed oil and gelatin The solution is placed in a three-necked flask at a volume ratio of 1:30, and stirred and mixed for 30 minutes at a speed of 500r / min, then a sodium sulfate solution th...

example 2

[0027] Add gelatin powder and water into the No. 2 beaker at a mass ratio of 1:100, stir and mix with a glass rod for 30 minutes, let it stand for swelling for 4 hours, and then move the No. , at a rotation speed of 500r / min, heat and stir to dissolve for 50min to obtain gelatin solution; put linseed oil and gelatin solution in a three-necked flask at a volume ratio of 1:30, and stir and mix for 30min at a rotation speed of 500r / min. Then add sodium sulfate solution 8 times the volume of the gelatin solution into the three-necked flask, and stir and mix for 30 minutes at a rotating speed of 300r / min, then place the three-necked flask in an ice-water bath, and lower the temperature in the three-necked flask to 15°C , then add a formaldehyde solution twice the volume of linseed oil to the three-necked flask, then add ammonia water with a mass fraction of 30% to the three-necked flask to adjust the pH to 9.5, then leave it to solidify for 5 hours to obtain a mixed solution, and th...

example 3

[0029] Put the paraffin in a crucible, and heat it at 60°C until it melts completely to obtain molten paraffin. Put sodium peroxide and molten paraffin in a No. 1 beaker at a mass ratio of 1:10, and stir and mix with a glass rod for 20 minutes. , to obtain a mixed slurry, and then put the mixed slurry in a freeze pulverizer to freeze and pulverize to obtain coated sodium peroxide; add gelatin powder and water to a No. 2 beaker at a mass ratio of 1:100, and stir and mix with a glass rod for 30 minutes Finally, let it stand for swelling for 4 hours, then move the No. 2 beaker into a magnetic stirrer with digital display speed measurement and constant temperature, and heat and stir to dissolve for 50 minutes at a temperature of 65 ° C and a speed of 500 r / min to obtain a gelatin solution; mix linseed oil and gelatin The solution is placed in a three-necked flask at a volume ratio of 1:30, and stirred and mixed for 30 minutes at a speed of 500r / min, then a sodium sulfate solution t...

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PUM

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Abstract

The invention discloses an emulsified asphalt cold paving material and belongs to the technical field of road engineering. The emulsified asphalt cold paving material is made by stirring and mixing linseed oil with a gelatin liquid according to a volume ratio of (1:20)-(1:30); further stirring and mixing with a sodium sulfate solution which is 5-8 times the volume of the gelatin liquid; cooling; further adding a formaldehyde solution which is 1-2 times the volume of the linseed oil; adjusting the pH value; leaving to stand to cure, filtering, and drying so as to obtain modified microcapsules;crushing steel slag, and screening so as to obtain steel slag powder; performing a stirring reaction on the steel slag powder with hydrochloric acid in a mass ratio of (1:30)-(1:50), filtering, and drying so as to obtain modified steel slag powder; by stirring and mixing asphalt, an emulsifier, aggregate, coated sodium peroxide, carbomer, the modified capsules, the modified steel slag powder and water, thereby obtaining the emulsified asphalt cold paving material. The emulsified asphalt cold paving material disclosed by the technical scheme of the invention has the characteristics of excellentmechanical properties, water resistance and flowability.

Description

technical field [0001] The invention discloses an emulsified asphalt cold patching material, which belongs to the technical field of road engineering. Background technique [0002] Due to the rapid development of traffic volume and serious overloading and overloading, the asphalt pavement is prone to rutting, potholes, cracks and other diseases. If they are not treated in time, the damage to the asphalt pavement will be aggravated and the service life of the pavement will be shortened. The use of hot-mix asphalt mixture for pit and other local disease maintenance will greatly increase the difficulty and cost of construction, and the low temperature is not conducive to the compaction of the mixture; and the maintenance of emulsified asphalt cold patch requires a long curing time. The supplementary asphalt mixture has the advantages of not being restricted by seasons, reducing maintenance costs, reducing transportation costs, and improving repair conditions, and has attracted ...

Claims

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Application Information

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IPC IPC(8): C04B26/26C04B111/72
CPCC04B26/26C04B2111/00482C04B2111/0075C04B2111/72C04B2201/10C04B2201/50C04B24/36C04B22/068C04B24/14C04B24/08C04B22/147C04B24/008C04B22/06C04B22/122C04B24/26C04B18/142C04B14/14
Inventor 龙海燕殷连海黄浩
Owner CHANGZHOU SIYU ENVIRONMENTAL PROTECTION MATERIAL SCI & TECH
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