Bituminous mixture used for thin layer overlay of cement concrete pavement and preparation and construction methods of bituminous mixture

A technology of asphalt mixture and cement concrete, which can be applied to cohesive pavements, roads, roads and other directions paved on site. It can solve the problems of high raw material requirements, achieve excellent performance, reduce pollution, and improve driving comfort and safety. Effect

Active Publication Date: 2015-07-08
江苏航卓建设股份有限公司
View PDF5 Cites 22 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, only some data show that iron tailings sand can be used instead of fine aggregate in asphalt mixture, and there is no data showing that copper tailings c

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
  • Bituminous mixture used for thin layer overlay of cement concrete pavement and preparation and construction methods of bituminous mixture
  • Bituminous mixture used for thin layer overlay of cement concrete pavement and preparation and construction methods of bituminous mixture
  • Bituminous mixture used for thin layer overlay of cement concrete pavement and preparation and construction methods of bituminous mixture

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] (1) Components:

[0031] Aggregate: Basalt, the largest nominal particle size is 6.7mm, purchased from Jiangsu Xingyuan Mining Co., Ltd.;

[0032] Filler: Copper tailings powder, which can be selected from local or surrounding mines;

[0033] Among them, the weight ratio of aggregate to filler is 96%:4%. For the convenience of description, aggregate and filler are collectively referred to as "mineral material", and the gradation of mineral material is shown in Table 1.

[0034] Table 1 Mineral material gradation

[0035]

[0036] Asphalt: SBS polymer modified asphalt, the ratio of oil to stone is 5.8%, wherein the ratio of oil to stone is the ratio of the weight of asphalt to mineral aggregate. The asphalt was purchased from Jiangsu Baoli Asphalt Co., Ltd.

[0037] Fiber stabilizer: polyester fiber, the content of which is 0.2% of the weight of the mineral material, purchased from Changzhou Zhuwei Building Materials Co., Ltd.

[0038] Additives: It is made by mixing a compound syne...

Embodiment 2

[0056] (1) Components:

[0057] Aggregate: Limestone, the largest nominal particle size is 6.7mm, purchased from Jiangsu Xingyuan Mining Co., Ltd.;

[0058] Filler: Copper tailings powder, which can be selected from local or surrounding mines;

[0059] Among them, the weight ratio of aggregate to filler is 95%: 5%;

[0060] See Table 3 for mineral gradation

[0061] Table 3 Mineral material gradation

[0062]

[0063] Asphalt: Heavy traffic 70#A grade asphalt with a bitumen ratio of 6.1%, purchased from Jiangsu Zhongyou Xingneng Asphalt Co., Ltd.

[0064] Fiber stabilizer: lignin fiber, the content of which is 0.3% of the weight of the mineral material, purchased from Changzhou Zhuwei Building Materials Co., Ltd.

[0065] Additives: It is made by mixing a compound synergist and a warming agent, the former is 0.6% of the mass of the mineral aggregate, and the latter is 0.4% of the mineral aggregate. The compound synergist is purchased from Shanghai Honeywell Co., Ltd. The mixture was purch...

Embodiment 3

[0075] (1) Components:

[0076] Aggregate: Diabase, with a maximum nominal particle size of 6.7mm, purchased from Jiangsu Xingyuan Mining Co., Ltd.;

[0077] Filler: Copper tailings powder, which can be selected from local or surrounding mines;

[0078] Among them, the weight ratio of aggregate to filler is 96%: 4%;

[0079] See Table 5 for mineral gradation

[0080] Table 5 Mineral material grading

[0081]

[0082] Asphalt: SBS polymer modified bitumen bitumen with a bitumen ratio of 5.6%, purchased from Jiangsu Baoli Asphalt Co., Ltd.

[0083] Fiber stabilizer: polyester fiber, the content of which is 0.15% of the weight of the mineral material, purchased from Changzhou Zhuwei Building Materials Co., Ltd.

[0084] Additives: compound synergist, the mixing amount is 0.5% of the mass of the mineral material, the compound synergist is purchased from Shanghai Honeywell Co., Ltd. Here, no warming agent is used because the temperature is higher, and the asphalt mixture can be better paving a...

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

No PUM Login to view more

Abstract

The invention discloses a bituminous mixture used for a thin layer overlay of cement concrete pavement and preparation and construction methods of the bituminous mixture. The bituminous mixture comprises mineral aggregate, bitumen, a fiber stabilizer and an additive, wherein filler in the mineral aggregate is copper tailing power. The bituminous mixture has the advantages that the copper tailing power is used as the filler in the bituminous mixture, thus copper tailing is comprehensively recycled. Besides, the bituminous mixture is superior in performances, is easily compacted, and can be paved on the cement concrete pavement for 1.5-2.5cm; the damaged pavement can be quickly repaired after construction; the smoothness and the skid resistance of the pavement are restored; the quality of the pavement is improved; the service life of the pavement is prolonged; driving comfort and safety are improved; the pavement can also be precured; the construction cost is lowered; energy and resources are saved; influences on environment and facilities are reduced; and the like. Moreover, the preparation method and the construction method of the bituminous mixture are simple and practicable, easy to operate and high in practicability.

Description

Technical field [0001] The invention relates to an asphalt mixture and a preparation method and construction method thereof, in particular to an asphalt mixture that recycles copper tailings and is applied to a thin layer overlay of a cement concrete pavement, and a preparation method and construction method thereof, belonging to road engineering The technical field of building materials used. Background technique [0002] Asphalt concrete pavement is a kind of flexible high-grade pavement. It is relatively simple to repair the old asphalt pavement and pave the asphalt concrete surface layer. It only needs to deal with the disease and do a good job in the overlap process of the new and old pavement to fully exert the effect of the asphalt concrete pavement . [0003] In contrast, cement concrete pavement is a kind of rigid high-grade pavement. Under the long-term action of natural environment and vehicle load, plus its own defects, once the pavement is damaged, it is difficult to ...

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): E01C7/35C04B26/26
Inventor 张方群
Owner 江苏航卓建设股份有限公司
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