Pavement construction segregation treatment method

A treatment method, anti-segregation agent technology, applied in the field of road construction segregation treatment, can solve problems such as asphalt segregation

Inactive Publication Date: 2021-04-20
CHONGQING COMM CONSTR GRP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a method for treating segregation in road construction to solve the technical problem of asphalt segregation in the existing asphalt pavement laying process

Method used

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  • Pavement construction segregation treatment method

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Experimental program
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Effect test

Embodiment 1

[0031] Screening uses aggregate particles with a particle size of 10-20mm as the bottom layer material, mixes with 10 parts of anti-segregation agent, and adds solvent, stirs evenly, so that the surface of the particles is coated with anti-segregation agent, and adds it to the heated and melted asphalt , the mass ratio of asphalt to aggregate particles is 1:3, mix and stir evenly, so that the mixed slurry is in a semi-fluid state, select the road surface area, lay the bottom asphalt mixture, and the laying thickness is 3cm;

[0032] Then screen and use aggregate particles with a particle size of 5-10mm as the upper layer material, add 5 parts of anti-segregation agent to mix, and add solvent, stir evenly, so that the surface of the particles is coated with anti-segregation agent, add to the heated and melted asphalt Among them, the mass ratio of asphalt and aggregate particles is 1:2, stir and mix evenly, and evenly lay on the above-mentioned bottom asphalt, and the laying thic...

Embodiment 2

[0035] Screening uses aggregate particles with a particle size of 10-20mm as the bottom layer material, mixes with 3 parts of anti-segregation agent, and adds solvent, stirs evenly, so that the surface of the particles is coated with anti-segregation agent, and then adds it to the heated and melted asphalt , the mass ratio of asphalt to aggregate particles is 1:5, mix and stir evenly, so that the mixed slurry is in a semi-fluid state, select the road surface area, lay the bottom asphalt mixture, and the laying thickness is 1cm;

[0036] Then screen and use aggregate particles with a particle size of 5-10mm as the upper layer material, add 4 parts of anti-segregation agent to mix, add solvent, stir evenly, so that the surface of the particles is coated with anti-segregation agent, add to the heated and melted asphalt , the mass ratio of asphalt to aggregate particles is 1:3, stir and mix evenly, and evenly lay on the above-mentioned bottom asphalt, and the laying thickness is 1c...

Embodiment 3

[0039] Screening uses aggregate particles with a particle size of 10-20mm as the bottom layer material, mixes with 8 parts of anti-segregation agent, and adds solvent, stirs evenly, so that the surface of the particles is coated with anti-segregation agent, and then adds it to the heated and melted asphalt , the mass ratio of asphalt to aggregate particles is 1:4, mix and stir evenly, so that the mixed slurry is in a semi-fluid state, select the road surface area, lay the bottom asphalt mixture, and lay the thickness of 2cm;

[0040] Then screen and use aggregate particles with a particle size of 5-10mm as the upper layer material, add 4 parts of anti-segregation agent to mix, add solvent, stir evenly, so that the surface of the particles is coated with anti-segregation agent, add to the heated and melted asphalt , the mass ratio of asphalt to aggregate particles is 1:3, stir and mix evenly, and evenly lay on the above-mentioned bottom asphalt, and the laying thickness is 2cm; ...

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Abstract

The invention relates to the technical field of road construction and particularly relates to a pavement construction segregation treatment method. The method comprises steps of crushing and screening aggregate particles; adding an additive into the aggregate particles, and uniformly mixing to form an aggregate particle mixture; heating to melt asphalt, adding the aggregate particle mixture, and fully stirring and uniformly mixing to obtain an asphalt mixture; a pavement laying area being selected, and a road base being detected; paving the asphalt mixture layer by layer and compacting. The method is advantaged in that according to the particle size of aggregate particles, an asphalt aggregate mixture with a large particle size is firstly paved, then an asphalt aggregate mixture with a small particle size is paved, and the aggregate particle mixture with the small particle size can be inserted into gaps of the aggregate particle mixture with the large particle size to a certain extent, so a distance between the aggregate particles is reduced, and the compacted pavement is more compact; mixture of aggregate with large and small particles and asphalt jointly plays a role in bearing, and finally the overall bearing capacity and natural disaster resistance are optimized.

Description

technical field [0001] The invention relates to the technical field of road construction, in particular to a road construction segregation treatment method. Background technique [0002] During pavement construction, it is necessary to use various specifications of sand, cement, concrete, asphalt, etc., wherein concrete and asphalt are generally prepared into a certain slurry for pavement paving. The segregation phenomenon refers to the phenomenon that a certain type of molecule or a certain type of substance in the mixed material aggregates due to the same physical properties, and then causes the mutual separation of the materials. The segregation of concrete and asphalt is not conducive to the stability of materials, and seriously affects the strength of the road surface and the degree of resistance to natural disasters. To this end, researchers and construction personnel put forward solutions from multiple perspectives, such as optimizing the construction process to avoi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01C7/18E01C19/00
Inventor 但长春钟志明吴辉丁渝叶业朱朝华陈正斌刘星星
Owner CHONGQING COMM CONSTR GRP
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