Method for preparing emulsion type rubber asphalt

A rubberized asphalt and emulsion type technology, applied in building components, building insulation materials, buildings, etc., can solve the problems of poor mechanical properties and stability of asphalt, and achieve the effects of improving mechanical properties, ensuring stability and reducing density

Inactive Publication Date: 2018-11-06
FOSHAN GAOMING DISTRICT ZHUAHE NEW MATERIAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem mainly solved by the present invention is: Aiming at the problem of poor mechanical prope

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0019] Example 1

[0020] Put the diatomaceous earth in a ball mill and pass it through an 80-mesh sieve to obtain diatom powder. Put the diatom powder and 30% hydrochloric acid in a mass ratio of 1:20 in a beaker at a speed of 500r / min. After stirring and mixing for 50 minutes, a mixed slurry was obtained, and then the mixed slurry was filtered to obtain a filter residue, and then the filter residue was washed with 30% ammonia water until the washing liquid was neutral, and then the washed filter residue was placed in an oven. At a temperature of 110℃, dry to a constant weight, pretreat the diatom powder, place the glass fiber in a ball mill and grind it through a 100-mesh sieve to obtain the glass fiber powder. The pretreated diatom powder and the mass concentration are 2.6mg / mL of dopamine solution was soaked in a three-necked flask at a mass ratio of 1:20 for 2 hours, and then added to the three-necked flask with 0.2 times the mass of pretreated diatom powder sodium bicarbon...

Example Embodiment

[0021] Example 2

[0022] Put the diatomaceous earth in a ball mill and pass it through an 80-mesh sieve to obtain diatom powder. Place the diatom powder and 30% hydrochloric acid in a mass ratio of 1:20 in a beaker at a speed of 500r / min. After stirring and mixing for 50 minutes, a mixed slurry was obtained, and then the mixed slurry was filtered to obtain a filter residue, and then the filter residue was washed with 30% ammonia water until the washing liquid was neutral, and then the washed filter residue was placed in an oven. Under the condition of temperature of 110℃, dry to constant weight, pretreat the diatom powder, place the glass fiber in a ball mill and grind it through a 100-mesh sieve to obtain glass fiber powder. The pretreated diatom powder and the mass concentration are 2.6mg / mL of dopamine solution was soaked in a three-necked flask at a mass ratio of 1:20 for 2 hours, and then added to the three-necked flask, 0.2 times the mass of pretreated diatom powder sodiu...

Example Embodiment

[0023] Example 3

[0024] In parts by weight, take 60 parts of asphalt and 40 parts of waste tire rubber powder in sequence, put the asphalt in a high-speed shearing machine, melt the asphalt at a temperature of 185℃, and then add waste to the high-speed shearing machine The rubber powder is mixed at a speed of 1200r / min, high-speed shearing for 60 minutes, and then cooled to 130°C to obtain a mixed slurry. Then, at a temperature of 130°C, keep it warm for use; in parts by weight, 10 Parts of cationic surfactant, 10 parts of non-ionic surfactant, and 60 parts of water are placed in the mixer at a temperature of 55°C and a rotating speed of 800 r.min, heated and stirred for 60 minutes, and then dripped into the mixer Add 3% ammonium chloride solution to adjust the pH to 5.1, stir and mix for 60 minutes at a speed of 800r / min to obtain an emulsion; in parts by weight, mix 60 parts of the mixed slurry and 40 parts of the emulsion , 30 parts of tar and 5 parts of phospholipids were ...

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Abstract

The invention discloses a method for preparing emulsion type rubber asphalt and belongs to the technical field of building materials. The method disclosed by the invention comprises the following steps: sequentially taking 40-60 weight parts of asphalt and 30-40 weight parts of waste tire rubber powder, heating and melting the asphalt, adding the waste tire rubber powder to be mixed, cooling to obtain mixed slurry, and maintaining the temperature for later use; heating, stirring and mixing the following components in parts by weight: 8-10 parts of a cationic surfactant, 8-10 parts of a nonionic surfactant and 40-60 parts of water, dropping an ammonium chloride solution to regulate the pH value to be 4.8-5.1, stirring and mixing to obtain emulsified liquid; stirring and mixing the followingcomponents in parts by weight: 50-60 parts of the mixed slurry, 30-40 parts of the emulsified liquid, 10-30 parts of tar, 8-10 parts of a modified filler and 3-5 parts of phospholipid, thereby obtaining the emulsion type rubber asphalt. The emulsion type rubber asphalt provided by the invention has excellent stability and mechanical property.

Description

technical field [0001] The invention discloses a preparation method of emulsion type rubber asphalt, which belongs to the technical field of building materials. Background technique [0002] Rubber asphalt is first processed from waste tires into rubber powder, and then combined according to a certain ratio of thickness and fineness. ), a modified asphalt cementitious material formed after fully swelling reaction with base asphalt. [0003] Rubber asphalt has greater elasticity and elastic recovery ability at high temperature, which can improve the performance of pavement resistance to deformation and fatigue cracking; it has better high and low temperature performance, which reduces the sensitivity of asphalt to temperature; at the same time, rubber asphalt has High viscosity, anti-aging, strong anti-oxidation ability, etc.; open-graded or discontinuously-graded rubber asphalt pavement has high anti-skid function, reduces driving splash in rainy days, improves vision, redu...

Claims

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Application Information

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IPC IPC(8): C08L95/00C08L19/00C08L71/02C08K13/06C08K9/00C08K9/02C08K9/04C08K7/26C08K7/14C08K5/521
CPCC08L95/005C08L2205/025C08L2205/035C08L19/003C08L71/02C08K13/06C08K9/00C08K9/02C08K9/08C08K7/26C08K7/14C08K5/521
Inventor 胡次兵兰梅菊朱东东
Owner FOSHAN GAOMING DISTRICT ZHUAHE NEW MATERIAL TECH CO LTD
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