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Environment-friendly modified asphalt for microsurfacing

A technology of modified asphalt and micro-surfacing, which is applied to building insulation materials, building components, buildings, etc. It can solve problems such as insufficient deformation resistance, long molding time, and unsatisfactory road performance, and achieve demulsification speed. control, reduce production and construction costs, and achieve the best environmental protection effect

Inactive Publication Date: 2019-12-20
田纹绮
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to solve the problems of insufficient deformation resistance, long molding time, and unsatisfactory road performance of emulsified modified asphalt in the prior art; provide an environmentally friendly modified asphalt for micro-surfacing that solves the above problems

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] A kind of environment-friendly modified asphalt used for microsurfacing, comprising the following components by weight:

[0030] 3-5 parts of cationic styrene-butadiene latex, 1.5-2.5 parts of neoprene latex, 2.5-3 parts of oleyl propylenediamine, 1.8-2.2 parts of industrial hydrochloric acid, 1.6-2.0 parts of Mqk-1m, 1.5-2.5 parts of PAMAM, matrix 15-20 parts of asphalt.

[0031] The specific proportioning of each component in the present embodiment is: 4.2 parts of cationic styrene-butadiene latex, 1.8 parts of chloroprene latex, 2.7 parts of oleyl propylenediamine, 2.1 parts of industrial hydrochloric acid, 1.6 parts of Mqk-1m, 2.2 parts of PAMAM, Base asphalt 18 parts.

[0032] At first, prepare modified emulsifier, the specific preparation method of this modified emulsifier is as follows:

[0033] (1) Dissolve 1.6-2.0 parts of Mqk-1m and 2.5-3 parts of oleylpropylenediamine in 1.8-2.2 parts of industrial hydrochloric acid to obtain mixed solution 1, set aside;

...

Embodiment 2

[0039] The difference between this embodiment and Embodiment 1 is that the composition of each substance is optimized in this embodiment, and the specific settings are as follows:

[0040] The concentration of the industrial hydrochloric acid is 30%-40%.

[0041] The PAMAM is a modified hyperbranched polyamidoamine. The concrete preparation process of this modified hyperbranched polyamide-amine is:

[0042] (1) Synthesis of AB by Michael addition reaction between diethylenetriamine and methyl acrylate 2 type monomer, the ratio of the amount of said diethylenetriamine to said methyl acrylate is 1:1-1.2;

[0043] (2)AB 2 Type monomers undergo their own melt polycondensation reactions to synthesize hyperbranched polyamidoamines;

[0044] (3) hyperbranched polyamidoamine and oleic acid undergo amidation reaction, the ratio of the amount of primary amine in the hyperbranched polyamidoamine to the amount of oleic acid is 1:1 -1.2.

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PUM

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Abstract

The invention discloses environment-friendly modified asphalt for microsurfacing. The problems that in the prior art, emulsified asphalt is insufficient in anti-deformation capacity, too long in molding time and not ideal enough in pavement performance are solved. The environment-friendly modified asphalt is prepared from the following components in parts by weight: 3-5 parts of cationic styrene-butadiene latex, 1.5-2.5 parts of neoprene latex, 2.5-3 parts of oleyl promethylene diamine, 1.8-2.2 parts of industrial hydrochloric acid, 1.6-2.0 parts of Mqk-1m, 1.5-2.5 parts of PAMAM, and 15-20 parts of matrix asphalt. The environment-friendly modified asphalt has the advantages of being high in adaptability, quick in molding, good in adhesive property and coating property, long in storage time and the like.

Description

technical field [0001] The invention relates to an asphalt, in particular to an environmentally friendly modified asphalt used for microsurfacing. Background technique [0002] Micro-surfacing is a more advanced preventive maintenance method developed on the basis of slurry seal. The working principle is to use stone chips or sand with a certain gradation, fillers (cement, lime, fly ash, stone powder, etc.) Material, and then spread evenly on the seal layer on the road surface. The characteristics of micro-surfacing are economical, energy-saving, environmentally friendly and safe, making it an effective preventive maintenance method, which has been widely used in highway pavement maintenance in our country. [0003] Emulsified asphalt has the advantages of saving energy, saving asphalt, environmental protection, safety, wide application, convenient use, and ideal road use effect. Emulsified asphalt is the best binder for microsurfacing. At present, the production bases o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L95/00C08L9/08C08L11/02C08L79/02C08G73/02
CPCC08G73/028C08L95/00C08L2205/035C08L9/08C08L11/02C08L79/02
Inventor 田纹绮
Owner 田纹绮
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