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Emulsified SBS polymer modified asphalt and preparation method thereof

A technology for modifying asphalt and polymers, applied in building construction, climate change adaptation, building components, etc., can solve the problems of difficult emulsification, difficult product stability, difficult to meet the requirements of road surface temperature, etc. The effect of reducing difficulty, shortening the time to close traffic, and meeting road performance

Inactive Publication Date: 2010-06-02
深圳路安特沥青高新技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

SBR latex modified emulsified asphalt is used more often, but this kind of modified emulsified asphalt has limited improvement on high temperature performance, and it is difficult to meet the requirements of actual road surface temperature; while SBS (butadiene-styrene-butadiene) Although the emulsified asphalt produced by modified asphalt has better performance in high and low temperature, it is difficult to emulsify and the product is not easy to be stable

Method used

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  • Emulsified SBS polymer modified asphalt and preparation method thereof
  • Emulsified SBS polymer modified asphalt and preparation method thereof
  • Emulsified SBS polymer modified asphalt and preparation method thereof

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Embodiment 1

[0012] The composition of the emulsified SBS polymer modified asphalt of the present invention comprises base asphalt, water, SBS (being butadiene-styrene-butadiene) asphalt modifier, composite asphalt emulsifier, emulsification stabilizer and hydrochloric acid, each composition Weight ratio is: base asphalt: water: SBS asphalt modifier: composite asphalt emulsifier: emulsification stabilizer: hydrochloric acid=48.25%: 47.2%: 1.75%: 2.3%: 0.4%: 0.1%, the consumption purpose of hydrochloric acid is to use Then adjust the pH value of the soap solution to 2.5.

[0013] The preparation method of emulsified SBS polymer modified asphalt of the present invention is:

[0014] A. Preparation of SBS modified asphalt:

[0015] Add 1.75% (according to the mass percentage of emulsified polymer modified asphalt,) of SBS asphalt modifier (Kumho brand SBS asphalt modifier 101) to the base asphalt that has been heated to 170-180°C ( Huanxiling brand heavy traffic No. 90 road asphalt), after ...

Embodiment 2

[0024] The composition of the emulsified SBS polymer modified asphalt of the present invention comprises base asphalt, water, SBS (being butadiene-styrene-butadiene) asphalt modifier, composite asphalt emulsifier, emulsification stabilizer and hydrochloric acid, each composition Weight ratio is: base asphalt: water: SBS asphalt modifier: composite asphalt emulsifier: emulsion stabilizer: hydrochloric acid=52.5%: 42.07%: 2.5%: 2.5%: 0.35%: 0.08%, the consumption purpose of hydrochloric acid is to use Then adjust the pH value of the soap solution to 3.

[0025] The preparation method of emulsified SBS polymer modified asphalt of the present invention is:

[0026] A. Preparation of SBS modified asphalt:

[0027] Add 2.5% (according to the mass percentage of emulsified polymer modified asphalt) of SBS asphalt modifier (SBS asphalt modifier of Korean LG production model 501) to the base asphalt (ESSO Brand Zhongtong Traffic No. 90 road asphalt), after swelling for 20 minutes, it ...

Embodiment 3

[0035] The composition of the emulsified SBS polymer modified asphalt of the present invention comprises base asphalt, water, SBS (being butadiene-styrene-butadiene) asphalt modifier, composite asphalt emulsifier, emulsification stabilizer and hydrochloric acid, each composition Weight ratio is: matrix asphalt: water: SBS asphalt modifier: composite asphalt emulsifier: emulsification stabilizer: hydrochloric acid=60.5%: 33.2%: 2.5%: 3.2%: 0.5%: 0.1%, the consumption purpose of hydrochloric acid is to use Then adjust the pH value of the soap solution to 2.5.

[0036] The preparation method of emulsified SBS polymer modified asphalt of the present invention is:

[0037] A. Preparation of SBS modified asphalt:

[0038] Add 2.5% (according to the mass percentage of base asphalt) of SBS asphalt modifier (the SBS asphalt modifier of Taiwan LCY brand model 3501) to the base asphalt (Tepco brand) that has been heated to 170-180 ° C Heavy traffic No. 90 road asphalt), after swelling ...

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Abstract

The invention relates to an emulsified SBS polymer modified asphalt and preparation method thereof. At present, emulsification and emulsified modified asphalt applied to surfacing is hard to produce and not stable in quality, high temperature performance improvement is not obvious. The raw materials of the invention are matrix asphalt, water, SBS asphalt modifier, compound asphalt emulsifier, emulsification stabilizer and hydrochloric acid; firstly the matrix asphalt is heated, added with SBS asphalt modifier and then stirred to be swelled, high speed grinding by colloid grinder and full dispersion are carried out, and heat preservation growth is carried out to obtain SBS modified asphalt; compound asphalt emulsifier is added into water, emulsification stabilizer smoothened by water in advance is added, and appropriate hydrochloric acid is added to adjust pH value, so as to obtain liquid soap; and finally the SBS modified asphalt is subject to temperature reduction and then mixed with the liquid soap and emulsification dispersion is carried out, thus obtaining emulsified SBS polymer modified asphalt. The invention is applicable to coat tacking, coat sealing, surface treatment, slurry sealing and asphalt pavement recycling, asphalt wet-mixing of road construction and cerement asphalt mortar layer of passenger special line plate type unballasted track.

Description

technical field [0001] The invention relates to the field of building materials, in particular to an emulsified SBS polymer modified asphalt and a preparation method thereof. Background technique [0002] At present, in addition to ordinary cationic and anionic emulsified asphalt, polymer modified emulsified asphalt is used in a large number of projects in order to improve the performance of pavement. SBR latex modified emulsified asphalt is used more, but this kind of modified emulsified asphalt has limited improvement on high temperature performance, and it is difficult to meet the requirements of actual road surface temperature; while SBS (butadiene-styrene-butadiene) Although the emulsified asphalt produced by modified asphalt has better performance in high and low temperature, it is difficult to emulsify and the product is not easy to be stable. Contents of the invention [0003] The purpose of the invention is to reduce the difficulty of emulsifying SBS (butadiene-s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L95/00C08L53/02C08K5/19C08K5/06C08J3/03
CPCY02A30/30
Inventor 毛宇
Owner 深圳路安特沥青高新技术有限公司
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