Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Cold mix and cold laid asphalt concrete and preparation method thereof

A technology for cold-paved asphalt and concrete, applied in the field of road and bridge engineering, can solve the problems of reducing the maintenance and repair effect, restricting the use of cold-mix cold-paved asphalt concrete, etc. Effect

Inactive Publication Date: 2018-04-20
北京国创通畅路桥养护有限公司
View PDF1 Cites 12 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It greatly limits the use of cold-mixed and cold-paved asphalt concrete in road maintenance projects, reducing the effect of maintenance and repair

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Cold mix and cold laid asphalt concrete and preparation method thereof
  • Cold mix and cold laid asphalt concrete and preparation method thereof
  • Cold mix and cold laid asphalt concrete and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Preparation of SBS modified asphalt: Heat 100Kg of base asphalt to 170°C, add 2Kg of star-shaped high molecular weight polymer SBS resin with an average molecular weight of 250,000, swell at 170°C for 0.5 hours, then heat up to 178°C for use Grind in a colloid mill, then add 6Kg of rubber softening oil; control the temperature at 185°C and stir for 2 hours, then lower the temperature to 175°C, add 0.005Kg of ZY stabilizer and stir for 1.5h.

[0040] Preparation of cold-mixed asphalt concrete: (1) 0.5Kg of pentamethylalkyl trimethylene diquaternary ammonium emulsifier, 0.2Kg of polyethylene glycol emulsifier and 0.5Kg of alkylphenol polyoxygen Ethylene emulsifier is added to 40Kg water at 55°C to disperse evenly, and the pH value is adjusted to 2.2 for later use; (2) 55Kg of SBS modified asphalt is added to the emulsifier aqueous solution, and ground through a colloid mill; (3) 5Kg The reaction type resin joins in the mixture in step (2), grinds through colloid mill; (4)...

Embodiment 2

[0044] Preparation of SBS modified asphalt: Heat 100Kg of base asphalt to 172°C, add 3.5Kg of polymer star-shaped SBS resin with an average molecular weight of 250,000, swell at 172°C for 0.75 hours, and then heat up to 175°C Use a colloid mill to grind, then add 1Kg of rubber softening oil; control the temperature at 180°C and stir for 2 hours, lower the temperature to 173°C, add 0.035Kg of ZY stabilizer and stir for 1.5h.

[0045] Preparation of cold-mixed cold-paved asphalt concrete: (1) 2Kg of pentamethylalkyl trimethylene diquaternary ammonium emulsifier, 0.8Kg of polyethylene glycol emulsifier and 1.5Kg of alkylphenol polyoxyethylene Dilute alkane emulsifiers were added to 35Kg water at 60°C to disperse evenly, and the pH value was adjusted to 1.5 for later use; (2) 50Kg of SBS modified asphalt was added to the emulsifier aqueous solution and ground through a colloid mill; (3) 10Kg of Reactive resin joins in the mixture in step (2), grinds through colloid mill; (4) the m...

Embodiment 3

[0049] Preparation of SBS modified asphalt: Heat 100Kg of base asphalt to 175°C, add 5Kg of polymer star-shaped SBS resin with an average molecular weight of 250,000, swell at 175°C for 0.5 hours, and then heat up to 180°C for use Grind in a colloid mill, then add 3.5Kg of rubber softening oil; control the temperature at 183°C and stir for 2 hours, then lower the temperature to 170°C, add 0.02Kg of ZY stabilizer and stir for 1.5h.

[0050] The preparation of cold-mixed cold asphalt concrete: (1) the alkylphenol polyoxyethylene of 1Kg pentamethyl alkyl trimethylene diquaternary ammonium emulsifier, 0.5Kg polyethylene glycol emulsifier and 1Kg Add emulsifier-like emulsifier into 38Kg water at 55°C to disperse evenly, and adjust the pH value to 3.0 for later use; (2) Add 60Kg of SBS modified asphalt to the emulsifier aqueous solution, and grind it through a colloid mill; (3) Mix 7Kg of reactive asphalt Resin joins in the compound in the step (2), grinds through colloid mill; (4) ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
particle diameteraaaaaaaaaa
particle diameteraaaaaaaaaa
particle diameteraaaaaaaaaa
Login to View More

Abstract

The invention relates to cold mix and cold laid asphalt concrete and a preparation method thereof. The cold mix and cold laid asphalt concrete comprises 25-35wt% of emulsified asphalt and 65-75wt% ofaggregate, wherein the emulsified asphalt comprises the following raw materials in parts by weight: 50-60 parts of SBS (Styrene-Butadiene-Styrene) modified asphalt, 35-40 parts of water, 1.2-4.3 partsof an emulsifier, 5-10 parts of a reaction type resin and 0.005-0.1 part of a curing agent. The preparation method comprises the following steps: (1) uniformly dispersing the emulsifier in water of 55-65 DEG C, and adjusting the pH value to 1.5-3.0 for later; (2) putting the SBS modified asphalt into an emulsifier solution, and grinding by using a colloid mill; (3) putting the reaction type resininto the mixed material of the step (2), and grinding by using the colloid mill; (4) shearing the mixed material of the step (3) at a speed of 6000-7000r / minute for 30-60 minutes; (5) putting the aggregate and the curing agent into the mixed material of the step (4), and uniformly mixing. The cold mix and cold laid asphalt concrete provided by the invention has the advantages of good constructionpeaceability and relatively high strength.

Description

technical field [0001] The invention relates to the technical field of road and bridge engineering, more specifically, it relates to a cold-mixed and cold-paved asphalt concrete and a preparation method thereof. Background technique [0002] With the continuous improvement of the national level, in our country, road construction, as a key project of construction, is also developing rapidly. The country is committed to the development of transportation construction, because although there are other transportation methods and the railway is also booming, road transportation is still one of the important methods of transportation. Road traffic connects various cities and regions, facilitating people's connections. It is believed that no matter how fast the economic growth rate is and no matter how rapid the development of other transportation methods is, road traffic will not be eliminated in a short time. [0003] The country has developed traffic engineering so vigorously, ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C04B26/26C04B111/20
CPCC04B26/26C04B2111/0075C04B2111/20C04B24/2676C04B24/12C04B24/32C04B24/281C04B14/14C04B14/28C04B18/12C04B18/141C04B2103/0068
Inventor 冯继新
Owner 北京国创通畅路桥养护有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com