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Emulsified asphalt modified by carbon nanometer fiber and preparing method thereof

A technology of nano-carbon fiber and emulsified asphalt, which is applied in building components, building insulation materials, buildings, etc., can solve the problem that the cold-mix cold paving performance of modified asphalt cannot meet the requirements for use, the requirements for rapid construction and opening to traffic, and the curing strength of the road surface is not enough. and other problems to achieve the effect of shortening curing time, enhancing curing strength and anti-rutting level, and improving curing time

Inactive Publication Date: 2016-02-10
重庆市六工新材料有限公司
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  • Summary
  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

However, when emulsified asphalt is used as a mixed asphalt mixture, its performance is limited due to its long curing time and insufficient pavement curing strength.
[0004] The modification of asphalt by polymers can improve the performance of asphalt pavement materials and has been widely used. Thermoplastic resins, thermosetting resins, rubber, latex and other polymers have been widely used for asphalt modification. Rutting performance, improving asphalt elasticity, low temperature resistance and fatigue cracking performance have all been improved to some extent, but the cold mixing and cold paving performance of modified asphalt has not yet met the requirements for use, and cannot achieve the requirements for rapid construction and opening to traffic
[0005] To sum up, there is currently no asphalt pavement material that can meet the requirements of rapid construction of cold mix and cold pavement, so as to solve the problem of rapid repair of damaged pavement around asphalt road potholes and inspection wells in urban roads

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Prepare nano-carbon fiber modified emulsified pitch as follows, by mass, its composition is 50 parts of pitch, 1 part of nano-carbon fiber, 18 parts of water, 1.8 parts of emulsifier and 0.1 part of stabilizer:

[0023] First, take 18 parts of water by mass, place them in a heating tank, and heat them to 60°C, then weigh 1.8 parts of emulsifier alkylamide polyamine (code name JSA-2) and 0.1 part of stabilizer hydrochloric acid, respectively Add alkylamide polyamine and hydrochloric acid into water at 60°C, stir until fully dissolved, and the solution becomes transparent.

[0024] Then, weigh 50 parts of Shengli No. 100 asphalt by mass, heat the asphalt to 120°C in a heating tank, then add 1 part of mesophase pitch nano-carbon fiber, and fully stir for 30 minutes with a shear mixer.

[0025] Finally, inject the prepared 60°C aqueous solution and 120°C asphalt into a colloid mill, and fully shear and grind for 30 minutes to obtain nano-carbon fiber modified emulsified asp...

Embodiment 2

[0029] According to the mass ratio of Example 1, the carbon nanofiber modified emulsified asphalt was prepared, and the asphalt was SBS modified asphalt.

Embodiment 3

[0031] Prepare nano-carbon fiber modified emulsified asphalt according to the mass ratio of Example 1, and the emulsifier is a fast-cracking emulsifier, such as cetyl dimethyl hydroxyethyl ammonium chloride, cetyl trimethyl bromide amine.

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Abstract

The invention relates to emulsified asphalt modified by carbon nanometer fiber and a preparing method thereof. The nanometer material characteristic of the nanometer carbon fiber and the characteristic of nanometer carbon materials are utilized for modifying emulsified asphalt, high-temperature performance and low-temperature performance of the emulsified asphalt can be improved, pavement materials short in curing time and high in curing strength are obtained, site cold mixing and cold laying can be achieved during construction of fast patching of asphalt road pits and repair of municipal road observation well lids, construction time is short, and the asphalt has a better application effect and has considerable application prospects.

Description

technical field [0001] The invention belongs to the technical field of road engineering, in particular to a cold-mixed and cold-paved modified emulsified asphalt used in asphalt roads. Background technique [0002] With the acceleration of domestic urbanization, the improvement of municipal construction requirements and the increase of domestic urban traffic pressure, various observation wells commonly found in urban roads often have failures such as collapse and looseness, which seriously affect urban traffic safety and traffic capacity. The rapid repair and replacement of wells has become an increasingly prominent problem. In order to minimize the impact on traffic, it is hoped that the construction can be carried out quickly around the clock, which undoubtedly puts forward high requirements for construction technology, especially for pavement materials. [0003] Emulsified asphalt is melted asphalt after mechanical shearing, dispersed in the aqueous solution containing em...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L95/00C08K7/06C08K7/24C08J3/03C04B26/26
Inventor 沈长彪林海原喻锐陈洪凯
Owner 重庆市六工新材料有限公司
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