Cold-mixed and cold-laid asphalt mixture, and cold-mixed and cold-laid asphalt mixture wearing layer

A technology of cold-laying asphalt and mixture, which is applied to coagulating pavement, buildings, roads and other directions paved on site. It can solve the problems of reflective crack disease and weak performance of pending-reflective cracks, so as to prolong the expected life and improve construction production efficiency. , the effect of saving carbon emissions

Active Publication Date: 2018-06-08
SOUTH CHINA UNIV OF TECH +1
View PDF5 Cites 11 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional thin-layer structure overlay scheme has weak performance in dealing with reflective cracks, a

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-mixed and cold-laid asphalt mixture, and cold-mixed and cold-laid asphalt mixture wearing layer
  • Cold-mixed and cold-laid asphalt mixture, and cold-mixed and cold-laid asphalt mixture wearing layer
  • Cold-mixed and cold-laid asphalt mixture, and cold-mixed and cold-laid asphalt mixture wearing layer

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0043] Example 1

[0044] A cold-mix cold-laid asphalt mixture, including the following components in parts by mass:

[0045] 60 parts of diabase coarse aggregate,

[0046] 40 parts of diabase fine aggregate,

[0047] 12 parts of SBS modified emulsified asphalt,

[0048] 1 part of cement,

[0049] 3 parts water,

[0050] 0 parts of water-based coupling agent.

[0051] Among them, the cement uses Portland cement, the water uses pure water, the mass content of SBS modifier in the modified emulsified asphalt is not less than 4%, and no water-based coupling agent is added. The aggregate particle size is 0~9.5mm, and the gradation adopts GT-7 type in the special gradation of coarse aggregate and fine aggregate as shown in Table 1. The results of the aggregate screening test are shown in Table 2:

[0052] Table 2 Screening test results of coarse aggregate and fine aggregate

[0053]

[0054] The construction method steps of cold-mix cold-laid asphalt mixture wear layer are as follows:

[0055] Add...

Example Embodiment

[0056] Example 2

[0057] A cold-mix cold-laid asphalt mixture, including the following components in parts by mass:

[0058] 80 parts of granite coarse aggregate,

[0059] 20 parts of granite fine aggregate,

[0060] 15 parts of SBS modified emulsified asphalt,

[0061] 0.5 part of mineral powder,

[0062] 0.5 part of water,

[0063] 3 parts of water-based coupling agent.

[0064] Among them, the coarse aggregate and the fine aggregate are acidic aggregates of granite, the mass content of SBS modifier in the modified emulsified asphalt is not less than 4%, water-based coupling agent is added, and the aggregate particle size is 0~9.5mm, grade The GT-7 type in the special gradation for coarse aggregate and fine aggregate as shown in Table 1 is used. The results of the aggregate screening test are shown in Table 3:

[0065] Table 3 Screening test results of coarse aggregate and fine aggregate

[0066]

[0067] The construction method steps of cold-mix cold-laid asphalt mixture wear layer are ...

Example Embodiment

[0069] Example 3

[0070] A cold-mix cold-laid asphalt mixture, including the following components in parts by mass:

[0071] 50 parts of granite coarse aggregate,

[0072] 50 parts of granite fine aggregate,

[0073] 10 parts of SBS modified emulsified asphalt,

[0074] 3 parts cement,

[0075] 5 parts water,

[0076] 1 part of water-based coupling agent.

[0077] Among them, the coarse aggregate and the fine aggregate are acidic aggregates of granite, the mass content of SBS modifier in the modified emulsified asphalt is not less than 4%, the particle size of the acidic aggregate is 0~9.5mm, and the gradation is as shown in the table For the GT-5 type in the special gradation for coarse aggregate and fine aggregate shown in 1, the aggregate screening test results are shown in Table 4:

[0078] Table 4 Screening test results of coarse aggregate and fine aggregate

[0079]

[0080] The construction method steps of cold-mix cold-laid asphalt mixture wear layer are as follows:

[0081] Add the...

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
Pull-out strengthaaaaaaaaaa
Pull-out strengthaaaaaaaaaa
Login to view more

Abstract

The invention provides a cold-mixed and cold-laid asphalt mixture, and a cold-mixed and cold-laid asphalt mixture wearing layer, and belongs to the technical field of road engineering. The cold-mixedand cold-laid asphalt mixture comprises coarse aggregates, fine aggregates, high-performance modified emulsified asphalt, a mineral filler, water and a liquid additive. The asphalt mixture prepared from above cold-mixed and cold-laid material components according to a special mineral grading range can be closely bonded to an old asphalt pavement and a cement pavement; and compared with traditionalmicro-surfacing and super-sticky wearing layer materials, the mixture has higher resistance to crack, water and skid and lower driving noises.

Description

technical field [0001] The invention relates to the technical field of road engineering, in particular to a cold-mixed and cold-paved asphalt mixture and a cold-mixed and cold-paved asphalt mixture wear course. Background technique [0002] At present, the number of highways in my country is close to 5 million kilometers, and the main construction work of highways has changed from new construction to maintenance, upgrading and transformation. In today's society, with the further development of the social economy, the demand for roads is not limited to the increase in durability. Driving safety and road environmental protection issues have become key factors for new roads. The state vigorously advocates the development of road construction and maintenance in the direction of "low carbon, energy saving, and environmental protection". In response to the national strategic development goal of "green transportation", it is an inevitable trend to innovate the existing asphalt we...

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
IPC IPC(8): C04B26/26C04B28/04C04B28/00E01C7/35
CPCC04B26/26C04B28/00C04B28/04C04B2111/0075C04B2201/50E01C7/351E01C7/353C04B14/04C04B24/36C04B14/048C04B14/02C04B2103/0068
Inventor 虞将苗陈丽娟莫广亮陈富达苏国城卢健元
Owner SOUTH CHINA UNIV OF TECH
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