Layered steel fiber conductive bituminous concrete

A technology of asphalt concrete and conductive asphalt, which is applied to the coagulation pavement, roads, and pavement details of on-site paving, can solve the problems of restricting the development of steel fiber reinforced concrete pavement and high construction cost, reducing road maintenance costs and improving driving safety. , the effect of reducing costs

Active Publication Date: 2010-08-18
武汉理工大产业集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to its high cost, the development of steel fiber concrete pavement is restricted to a certain extent.

Method used

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  • Layered steel fiber conductive bituminous concrete
  • Layered steel fiber conductive bituminous concrete
  • Layered steel fiber conductive bituminous concrete

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] like figure 1 As shown, the layer-distributed steel fiber conductive asphalt concrete includes asphalt concrete surface layer 1, steel fiber layer 4, and lower bearing layer 2, asphalt concrete surface layer 1, steel fiber layer 4, and lower bearing layer 2 from top to bottom. Arrangement (bottom bearing layer 2, steel fiber layer 4, asphalt concrete surface layer 1 are arranged sequentially from bottom to top), and electrodes 3 are embedded in the steel fiber layer (stainless steel electrodes with a length of 300mm and a width of 10mm are arranged in parallel; electrodes and external power supply After connection, the electrothermal effect is used to remove ice and snow in cold seasons); the steel fiber layer is composed of steel fibers and conductive emulsified asphalt, the steel fibers are evenly laid on the surface of the lower bearing layer by spreading, and the conductive emulsified asphalt (sprayed) is sprayed on the steel fibers After the steel fibers, spray co...

Embodiment 2

[0036] like figure 1 As shown, the layer-distributed steel fiber conductive asphalt concrete includes asphalt concrete surface layer 1, steel fiber layer 4, and lower bearing layer 2, asphalt concrete surface layer 1, steel fiber layer 4, and lower bearing layer 2 from top to bottom. Arrangement, electrodes 3 are buried in the steel fiber layer (after the electrodes are connected to the external power supply, the electrothermal effect is used to deice and melt snow in cold seasons); the steel fiber layer is composed of steel fiber and conductive emulsified asphalt, and the steel fiber is laid evenly by spreading On the surface of the lower bearing layer, conductive emulsified asphalt is sprayed on the steel fibers (after the steel fibers are spread, conductive emulsified asphalt is sprayed to form an interpenetrating network structure), and the amount of steel fibers spread is 170g / m 2 , the spreading amount of conductive emulsified asphalt is 0.6L / m 2 .

[0037] The steel ...

Embodiment 3

[0047] like figure 1 As shown, the layer-distributed steel fiber conductive asphalt concrete includes asphalt concrete surface layer 1, steel fiber layer 4, and lower bearing layer 2, asphalt concrete surface layer 1, steel fiber layer 4, and lower bearing layer 2 from top to bottom. Arrangement, electrodes 3 are buried in the steel fiber layer (after the electrodes are connected to the external power supply, the electrothermal effect is used to deice and melt snow in cold seasons); the steel fiber layer is composed of steel fiber and conductive emulsified asphalt, and the steel fiber is laid evenly by spreading On the surface of the lower bearing layer, conductive emulsified asphalt is sprayed on the steel fibers (after the steel fibers are spread, the conductive emulsified asphalt is sprayed immediately to form an interpenetrating network structure), and the amount of steel fibers spread is 330g / m 2 , the spreading amount of conductive emulsified asphalt is 0.8L / m 2 .

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Abstract

The invention relates to a steel fiber bituminous concrete, in particular to a layered steel fiber conductive bituminous concrete. The layered steel fiber conductive bituminous concrete is characterized by comprising a bituminous concrete pavement, a steel fiber layer and a lower bearing layer which are sequentially arranged from top to bottom, wherein electrodes are embedded in the steel fiber layer; the steel fiber layer consists of steel fiber and conductive emulsified asphalt and is uniformly paved on the surface of the lower bearing layer with a spreading method, the conductive emulsified asphalt is sprayed on the steel fiber, the spreading amount of the steel fiber is 170-330g/m<2>, and the spraying amount of the emulsified asphalt is 0.6-0.81g/m<2>. The invention has the characteristics of low cost of construction, simple and convenient construction, easy control of quality and favorable conductive performance, and meanwhile, the high-temperature stability and the low-temperature crack resistance are improved. The layered steel fiber conductive bituminous concrete is applied to deicing and snow melting of bituminous pavements and self-healing or heat repairing of the diseases of bituminous pavements.

Description

technical field [0001] The invention relates to a steel fiber asphalt concrete, in particular to a layer-distributed steel fiber conductive asphalt concrete. Background technique [0002] The road performance and safety of asphalt concrete pavement have been paid close attention to by people. Asphalt concrete pavement has the advantages of low fuel consumption, low noise, good skid resistance, and low vehicle wear for driving. It has been widely used in major roads such as airport runways, bridge deck pavements, expressways, and urban pavements. Asphalt pavement has accounted for more than 80% of the roads built in the world; more than 90% of my country's expressways are asphalt pavement. But asphalt is a typical viscoelastic material, which tends to become brittle at low temperature and sticky and flow at high temperature. Therefore, when the temperature is high in summer, the temperature of the asphalt pavement can reach 70°C, and rutting, wave movement and other phenome...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01C7/18E01C11/26
Inventor 吴少鹏陈明宇王虹韩君张园张吉哲束冬林
Owner 武汉理工大产业集团有限公司
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