A kind of anti-rutting pavement structure and laying method thereof

A pavement structure, anti-rutting technology, applied in the direction of roads, roads, condensed pavement paved on site, etc., can solve the problems of inability to effectively resist rutting, the overall coordinated deformation ability and the weak resistance to cracks, etc., to improve the overall deformation. Coordination ability, short construction and maintenance period, good resistance to cracks

Active Publication Date: 2017-03-15
RES INST OF HIGHWAY MINIST OF TRANSPORT +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide an anti-rutting pavement structure to solve the existing problems in the prior art that it cannot effectively resist rutting under high temperature and heavy load, and the overall coordinated deformation ability and crack resistance ability are not strong

Method used

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  • A kind of anti-rutting pavement structure and laying method thereof
  • A kind of anti-rutting pavement structure and laying method thereof
  • A kind of anti-rutting pavement structure and laying method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0048] like figure 1 The rutting-resistant pavement structure of the poured asphalt mixture shown, from bottom to top, the semi-rigid base, the SBS emulsified asphalt bonding layer, the type II latex cement mortar poured asphalt concrete layer, and the I type latex cement mortar poured in Type asphalt concrete layer, high viscosity modified asphalt SMA-13 ​​concrete layer.

[0049] Among them, the amount of semi-rigid base and SBS emulsified asphalt bonding layer is 0.6kg / m 2 , The thickness of the type II latex cement mortar poured asphalt concrete layer is 8cm, the thickness of the I type latex cement mortar poured asphalt concrete layer is 5cm, and the thickness of the high viscosity modified asphalt SMA-13 ​​concrete layer is 4cm.

[0050] The type II latex cement mortar poured asphalt concrete material layer is composed of large-pore open-graded asphalt mixture and latex cement mortar in a mass ratio of 6:1; wherein, the large-pore open-graded asphalt mixture is composed...

Embodiment 2

[0058] In this comparative example, the pavement structure is sequentially provided with a semi-rigid base layer, an SBS emulsified asphalt bonding layer, a lower layer, a middle surface layer, and a surface layer from bottom to top.

[0059] Among them, the amount of semi-rigid base and SBS emulsified asphalt bonding layer is 0.6kg / m 2 , The thickness of the lower layer is 8cm, the thickness of the middle layer is 5cm, and the thickness of the surface layer is 4cm.

[0060] According to the relevant regulations on the minimum compaction degree and suitable thickness of the asphalt mixture structural layer in Table 4.1.3 of "Code for Design of Highway Asphalt Pavement" (JTGD50-2006), the maximum nominal particle size of the type II latex cement mortar poured asphalt concrete It is 19mm, corresponding to a suitable thickness of 60-80mm, so it can only be used in the lower layer, and cannot be used in the upper layer of 40mm and the middle layer of 50mm, otherwise the structure ...

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Abstract

The invention discloses an anti-rutting pavement structure, which is characterized in that it comprises a semi-rigid base layer, an SBS emulsified asphalt bonding layer, a type II latex cement mortar poured asphalt concrete lower layer, and a type I latex Cement mortar poured asphalt concrete middle course and high viscosity modified asphalt SMA‑13 concrete surface course. Compared with the prior art, the present invention improves the phenomenon that the middle and lower layers of the semi-rigid base pavement contribute greatly to rutting under the condition of high temperature and heavy load. It has the ability to coordinate with the overall deformation of the base, and the construction maintenance period is short, the opening time for traffic is fast, and the economic performance is excellent.

Description

technical field [0001] The invention belongs to the field of road engineering construction, and particularly relates to a rutting-resistant pavement structure and a laying method thereof. Background technique [0002] The pavement structure of highways and urban roads in my country is mainly asphalt pavement. Asphalt pavement has the special properties of viscoelasticity and plasticity, and its strength and flow properties are affected by temperature. It brings about smooth road surface, high driving comfort, low noise and low vibration. At the same time, it also causes serious rutting disease of the asphalt pavement structure under the action of repeated vehicle loads, as well as shrinkage cracks or low temperature crack resistance of the semi-rigid base. The problem of cracking of the surface layer due to insufficient. [0003] Although cement concrete pavement has the advantages of high strength and good durability, and can effectively solve the problem of road rutting, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01C7/32E01C7/26C04B28/02C04B24/36C04B24/26C04B14/06
CPCC04B18/022C04B28/02C04B40/0028E01C7/26E01C7/32C04B20/0088C04B24/26C04B14/06C04B26/06C04B26/26C04B2111/00612C04B2111/0075C08L95/00C08L95/005E01C7/10E01C7/12E01C7/18E01C7/182E01C7/30C04B7/02C04B24/2676C08L7/02C08L25/10C08L21/00C08L23/04C08L25/08C04B24/36C04B40/0032
Inventor 钟科吴逸飞罗桑陈波刘国强常荣华丁京
Owner RES INST OF HIGHWAY MINIST OF TRANSPORT
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