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Asphalt pavement structure regenerated from concrete pavement and construction method of asphalt pavement structure

A technology for cement pavement and asphalt pavement, applied in roads, roads, road repair, etc., can solve the problems of inability to guarantee the amount of asphalt, waste of asphalt and new aggregate resources, affecting the strength and deformation resistance of structural layers, and reduce engineering costs. Construction cost, saving stone and asphalt resources, simple structure effect

Active Publication Date: 2014-12-31
广州大象超薄路面技术开发有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] (3) Determining the amount of emulsified asphalt spraying based on experience cannot guarantee the optimal amount of asphalt, which seriously affects the strength and deformation resistance of the formed structural layer
Cause a lot of waste of asphalt and new aggregate resources

Method used

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  • Asphalt pavement structure regenerated from concrete pavement and construction method of asphalt pavement structure
  • Asphalt pavement structure regenerated from concrete pavement and construction method of asphalt pavement structure
  • Asphalt pavement structure regenerated from concrete pavement and construction method of asphalt pavement structure

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0036] Example 1 The construction process is as follows:

[0037] (1) Broken

[0038] A multi-hammer crusher produced by Shandong Highway Machinery Factory was used to crush the cement concrete panel of the original road surface, and a "Z" type roller and a steel wheel roller were used for vibratory rolling.

[0039] The crushing depth of the surface of the cement concrete panel is 13cm; the passing rate of the 37.5mm sieve hole of the crushed aggregate is 98%.

[0040] (2) Collect broken pellets

[0041] Manual and mechanical methods are used to collect the broken aggregates on the surface of the cement pavement and transport them to the mixing plant.

[0042] (3) Sieve the broken pellets

[0043] In the mixing plant, sieve out the particles with a particle size of less than 0.075mm and particles larger than 37.5mm in the collected granules to obtain granules with a size of 0.075mm~37.5mm.

[0044] (4) Determine the optimal amount of asphalt

[0045] The qualit...

example 2

[0062] Example 2 The construction process is as follows:

[0063] (1) Broken

[0064] A PSZ600 pavement resonance crusher produced by Shandong Highway Machinery Factory was used to crush the cement concrete panel of the original road surface, and a "Z" type roller and a steel wheel roller were used for vibratory rolling.

[0065] The crushing depth of the surface of the cement concrete panel is 13cm; the 37.5mm sieve hole passing rate of the crushed aggregates is 90%.

[0066] (2) Collect broken pellets

[0067] Manual and mechanical methods are used to collect the broken aggregates on the surface of the cement pavement and transport them to the mixing plant.

[0068] (3) Sieve the broken pellets

[0069] In the mixing plant, sieve out the particles with a particle size of less than 0.075mm and particles larger than 37.5mm in the collected granules to obtain granules with a size of 0.075mm~37.5mm.

[0070] (4) Determine the optimal amount of asphalt

[0071] The...

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Abstract

The invention discloses an asphalt pavement structure regenerated from a concrete pavement and a construction method of the asphalt pavement structure. The asphalt pavement structure comprises a residual portion of a crushed prior pavement concrete faceplate, an emulsified asphalt bonding layer and a cold regeneration asphalt mixture layer. The construction method includes crushing the cement concrete faceplate of a pavement and using a road roller to grind the cement concrete faceplate in a vibration mode; obtaining recycled particles with sizes of 0.075mm-37.5mm from collected particles; mixing a clod regeneration asphalt mixture; cleaning concrete faceplate surface loose particles of the residual portion of the crushed prior pavement concrete faceplate and spraying the emulsified asphalt bonding layer; paving the cold regeneration asphalt mixture; grinding the paved mixture; and performing curing under a natural state. The asphalt pavement structure is simple and convenient to construct, the tensile strength and the shearing strength of the mixture are increased, and the thickness of asphalt overlays can be reduced; and stone and asphalt resources are saved, and engineering construction costs are reduced.

Description

technical field [0001] The invention relates to a road pavement structure and a construction method thereof, in particular to a structure of an asphalt pavement regenerated from a cement pavement and a construction method thereof. Background technique [0002] The main process of crushing cement pavement by applying the "Guidelines for the Application of Crushing Technology for Old Cement Concrete Pavement" written by Wang Songgen et al. is as follows: crushing the cement panel with a multi-hammer crusher MHB, and using a "Z" type road roller and a steel wheel The road roller vibrates and compacts, sprays the emulsified asphalt overcoat and stone chips, and uses a slick roller to statically press. Then, lay the asphalt overlay. [0003] The existing cement concrete pavement crushing technology has the following problems: [0004] (1) The crushed pellets have a high content of particles with a particle size of less than 0.075 mm, which absorb a large amount of asphalt and f...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01C7/32E01C7/24E01C19/10E01C19/18E01C19/23E01C23/03
Inventor 葛折圣张肖宁
Owner 广州大象超薄路面技术开发有限公司