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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 properties and stability of traditional emulsion rubber asphalt, a preparation method of emulsion rubber asphalt is provided

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0020] Put the diatomite in a ball mill and grind it through a 80-mesh sieve to obtain diatom powder. Put the diatom powder and hydrochloric acid with a mass fraction of 30% in a beaker at a mass ratio of 1:20. Next, stir and mix for 50 minutes to obtain a mixed slurry, then filter the mixed slurry to obtain a filter residue, then wash the filter residue with ammonia water with a mass fraction of 30% until the washing liquid is neutral, then place the washed filter residue in an oven, At a temperature of 110°C, dry to constant weight, pretreat the diatom powder, put the glass fiber in a ball mill for ball milling, pass through a 100-mesh sieve to obtain the glass fiber powder, mix the pretreated diatom powder with a mass concentration of 2.6 mg / mL of dopamine solution was placed in a three-necked flask with a mass ratio of 1:20 and soaked for 2 hours, and then sodium bicarbonate with 0.2 times the mass of pretreated diatom powder and glass fiber powder with 0.2 times the mass ...

example 2

[0022]Put the diatomite in a ball mill and grind it through a 80-mesh sieve to obtain diatom powder. Put the diatom powder and hydrochloric acid with a mass fraction of 30% in a beaker at a mass ratio of 1:20. Next, stir and mix for 50 minutes to obtain a mixed slurry, then filter the mixed slurry to obtain a filter residue, then wash the filter residue with ammonia water with a mass fraction of 30% until the washing liquid is neutral, then place the washed filter residue in an oven, At a temperature of 110°C, dry to constant weight, pretreat the diatom powder, put the glass fiber in a ball mill for ball milling, pass through a 100-mesh sieve to obtain the glass fiber powder, mix the pretreated diatom powder with a mass concentration of 2.6 mg / mL of dopamine solution was placed in a three-necked flask with a mass ratio of 1:20 and soaked for 2 hours, and then sodium bicarbonate with 0.2 times the mass of pretreated diatom powder and glass fiber powder with 0.2 times the mass o...

example 3

[0024] In terms of parts by weight, take 60 parts of asphalt and 40 parts of waste tire rubber powder successively, put the asphalt in a high-speed shearing machine, melt the asphalt at a temperature of 185°C, and then add waste tire rubber powder to the high-speed shearing machine. Rubber powder, under the condition of rotating speed of 1200r / min, after high-speed shearing and mixing for 60min, cool down to 130°C to obtain the mixed slurry, then, under the condition of 130°C, keep warm for standby; in parts by weight, 10 1 part of cationic surfactant, 10 parts of nonionic surfactant and 60 parts of water are placed in a mixer, heated and stirred for 60 minutes at a temperature of 55°C and a rotation speed of 800r.min, and then dripped into the mixer Add ammonium chloride solution with a mass fraction of 3% to adjust the pH to 5.1, and stir and mix for 60 minutes under the condition of a rotating speed of 800r / min to obtain an emulsion; , 30 parts of tar and 5 parts of phospho...

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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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