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Emulsified asphalt thin paste mixture penetration type asphalt pavement construction technology

A technology of slurry mixture and emulsified asphalt, which is applied in the direction of roads, roads, road repairs, etc., can solve the problems of unstable performance of mechanical equipment, low precision of construction control, and insufficient anti-rutting performance, and achieve the miniaturization of construction machinery and equipment, The construction process is simple and easy to master, and the effect of strong anti-rutting performance

Active Publication Date: 2015-01-07
河南中亚交建集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

SMA (asphalt mastic macadam) asphalt pavement is such a pavement. Theoretically speaking, its anti-rutting performance is very strong. Relatively low, unstable performance of mechanical equipment, relatively low softening point of binder, material segregation and other factors lead to relatively insufficient anti-rutting performance of SMA asphalt pavement. The fact is that SMA asphalt pavement also often appears rutting

Method used

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  • Emulsified asphalt thin paste mixture penetration type asphalt pavement construction technology
  • Emulsified asphalt thin paste mixture penetration type asphalt pavement construction technology
  • Emulsified asphalt thin paste mixture penetration type asphalt pavement construction technology

Examples

Experimental program
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Effect test

Embodiment 1

[0062] Conditions of this embodiment: the first layer of asphalt and gravel are sprinkled (scattered) in an asynchronous manner, the asphalt is spread with hot asphalt, and the oil content for mixing (the content of evaporation residue components mainly refers to the content of asphalt including modifier components) For 60% modified emulsified asphalt, use MS-3 (MS: the abbreviation of English Micro-Surfacing is the micro-surfacing; 3: model) type slurry mixture as the penetrating material, and build a new FH-40 (40: sprinkler The maximum particle size of gravel is 40mm, which is also the thickness of the road surface) type modified emulsified asphalt slurry mixture penetration type asphalt pavement.

[0063] When implementing it, the first thing to do is to carry out the design of FH-40 modified emulsified asphalt slurry mixture penetration type asphalt pavement materials.

[0064] FH-40 modified emulsified asphalt slurry mixture penetration type asphalt pavement material des...

Embodiment 2

[0097] Conditions of this example: the first layer of asphalt is sprinkled (sprinkled) in a synchronous manner with gravel, the first layer of asphalt is sprinkled with hot asphalt, the second layer of asphalt is artificially sprinkled with modified emulsified asphalt, and the modified emulsified asphalt is used for spreading and mixing. The oil content of the emulsified asphalt is 60%, and the MS-2 slurry mixture is used as the penetrating material to fill the 30mm deep rut.

[0098] During specific implementation, the first work to be done is to design the materials used to fill the ruts.

[0099] The material design for filling ruts is divided into two parts: sprinkling (sprinkling) cloth and penetrating material:

[0100] 1) Sprinkle (sprinkle) cloth: According to research, the amount of asphalt sprinkled on the first layer is 0.3kg / m 2 ;Because the maximum particle size of 10mm~30mm gravel is 30mm, which is consistent with the depth of ruts, so choose to use 10mm~30mm gr...

Embodiment 3

[0132] Conditions of this example: serious rutting occurs on the asphalt pavement of the guide road, the original pavement is 60mm thick and fully milled, the modified emulsified asphalt with an oil content of 60% is used for spreading and mixing, and the MS-2 type slurry mixture is used as the penetration Material, use FH-60 modified emulsified asphalt slurry mixture to penetrate into asphalt pavement repair.

[0133] When implementing it, the first thing to do is to carry out the design of FH-60 modified emulsified asphalt slurry mixture penetration type asphalt pavement materials.

[0134] FH-60 type modified emulsified asphalt slurry mixture penetrating asphalt pavement material design is divided into two parts: sprinkling (sprinkling) cloth and penetrating material:

[0135] 1) Sprinkle (sprinkle) cloth: According to research, the amount of asphalt sprinkled on the first layer is 0.8kg / m 2 Modified emulsified asphalt; because the maximum particle size of 30mm-60mm gravel...

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Abstract

The invention provides an emulsified asphalt thin paste mixture penetration type asphalt pavement construction technology which can achieve an effect that tracks cannot be generated on an asphalt pavement prepared by the technology. The construction technology comprises the steps of adhering gravels playing a main supporting role to a lower bearing layer according to a layer spreading method, penetrating a stirred emulsified asphalt thin paste mixture into clearances among the gravels, performing preservation I, preservation II and preservation III, and rolling to form the asphalt pavement. During implementation of the construction technology, all sets of equipment are a small amount of conventional mechanical equipment which are small in size and simple; the construction technology is simple, easy to master, low in consumption, environment-friendly, healthy and safe; the construction technology disclosed by the invention can be used for maintaining new constructed pavements and constructed pavements, and the asphalt pavement can be also used as a protection layer, an abrasion layer and an antiskid layer and used for paving a bridge surface, beautifying the environment or avoiding noise and the like; the construction technology can be used for filling the tracks and is particularly suitable for climbing roads on expressways, exclusive BRT (bus rapid transit) roads and guide roads and positions, at which deeper tracks are generated, on the middle layer or the lower layer of a multi-layer asphalt pavement.

Description

technical field [0001] The invention relates to the technical field of road construction and maintenance, in particular to an emulsified asphalt slurry mixture penetration type asphalt pavement construction process. Background technique [0002] Most of the roads and urban roads that have been built in my country are asphalt roads. Due to the serious overloading of vehicles, large traffic volume, channelized driving, and high temperature weather, rutting has become the most important disease in the early stage of asphalt pavement, such as the climbing section of the expressway, the BRT (Bus Rapid Transit) lane and Rutting is the most likely and serious place on the guide road, etc. According to the data, 80% of the asphalt pavement has different degrees of rutting. It is a stubborn disease in road diseases and has not been solved. [0003] At present, the typical asphalt pavement structure is divided into three types: the suspended dense structure is shown in Figure 1(a), t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01C19/15E01C19/17E01C19/23E01C23/03
CPCE01C7/18E01C19/17
Inventor 王海有宋俊伟宋现法黄建辉张建勋王昆米宁王壹帆薛秋香狄琳
Owner 河南中亚交建集团有限公司
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