Mix proportion design method of emulsified asphalt cold-patch mixture

A technology for mixing ratio design and emulsification of asphalt, applied in chemical instruments and methods, mixing operation control, mixing operation control device, etc., can solve the problem of not forming a relatively systematic and complete system.

Inactive Publication Date: 2012-11-14
SHANGHAI SHENQIAO SCI & TECH DEV
View PDF2 Cites 31 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] Therefore, the application of emulsified asphalt cold repair mixture has important practical significance. At the same time, a relatively systematic and complete system has not been formed for the design of emulsified asphalt mixture at home and abroad. In view of the superiority of this mixture in road repair , it is necessary to invent a design method for determining the mix ratio of emulsified asphalt cold patch

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] (1) The emulsified asphalt used in the mix ratio design is a modified slow-cracking and slow-setting cationic emulsified asphalt, and its various technologies meet the requirements of the "Technical Specifications for Highway Asphalt Pavement Construction" (JTG F40-2004). The asphalt content is 60.1%; the aggregate used is limestone, which meets the requirements for aggregates for grade-1 road asphalt mixtures in the "Technical Specifications for Construction of Highway Asphalt Pavement" (JTG F40-2004).

[0036] (2) In order to make this example representative, AC-13 gradation commonly used in asphalt pavement design is adopted, and the gradation composition is shown in Table 1:

[0037] Table 1 Grading composition of ore materials

[0038] Particle size (mm) 16 13.2 9.5 4.75 2.36 1.18 0.6 0.3 0.15 0.075 Passing rate(%) 100 96.7 76.5 60.3 43.4 33.6 23.2 14.7 10.5 7.2

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
thicknessaaaaaaaaaa
voidageaaaaaaaaaa
Login to view more

Abstract

The invention belongs to the technical field of roads and urban roads, and specifically relates to a mix proportion design method of an emulsified asphalt cold-patch mixture. The method is characterized by compaction and maintenance technologies of test pieces and determination of optimal total water content and optimal emulsified asphalt consumption. aiming at the special strength forming process of emulsified asphalt materials, different and special compaction methods and maintenance conditions are adopted for different stages of the mix proportion design, so that the optimal total water content and the optimal emulsified asphalt content can be determined, wherein the field actual conditions are simulated and the early damages of asphalt road surfaces are considered in the compaction methods and the maintenance conditions. After the optimal total water content and the optimal emulsified asphalt content are determined, the water stability and anti-stripping capability of the emulsified asphalt cold-patch mixture in the early stage of use are evaluated. The mix proportion design method of the emulsified asphalt cold-patch mixture is comprehensive in consideration and strong in practicability; and the emulsified asphalt cold-patch mixture obtained according to the method can obtain favorable pavement performance.

Description

technical field [0001] The invention belongs to the technical field of roads and urban roads, and in particular relates to a method for designing the mixing ratio of emulsified asphalt cold patch mixture. Background technique [0002] After the asphalt pavement is paved, in order to ensure its high-level service performance, planned and timely repair and maintenance must be carried out on the pavement in use. [0003] At present, the materials used for asphalt pavement repair are mainly hot mix asphalt mixture, followed by cold patch asphalt mixture and emulsified asphalt mixture. [0004] The production, transportation, and construction of hot-mix asphalt mixtures require high temperatures, which are greatly affected by the construction season. Asphalt mixtures are not easy to compact when the temperature is low, which leads to loose asphalt pavements and potholes in winter in cold regions. Diseases cannot be dealt with in a timely and effective manner; for asphalt pavemen...

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): B28C7/04E01C7/24E01C7/26
Inventor 曲宏朱兴发陈奇
Owner SHANGHAI SHENQIAO SCI & TECH DEV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap