Soft soil matrix pavement asphalt concrete construction method

A technology of asphalt concrete and construction method, which is applied in the direction of roads, roads, and cohesive pavements paved on site, etc., which can solve the problems of asphalt pavement damage, roadbed, pavement strength reduction, soft soil foundation settlement, etc., and achieve safe and convenient use, Guaranteed the effect of firmness and quality

Inactive Publication Date: 2020-03-13
周家春
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These diseases not only bring various hidden dangers to road traffic, but also reduce the strength of roadbed and road surface, affecting the normal use of roads; at the same time, they also greatly shorten the service life of asphalt pavement, and cause considerable economic losses. , this is a problem that cannot be ignored
[0003] In the existing construction process, there is no more comprehensive and systematic construction method, and the proportion control of construction materials is not particularly precise. There may be problems such as soft soil foundation settlement, asphalt pavement damage, and uneven pavement, which will affect the quality of construction. good guarantee

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Embodiment 1: a kind of soft soil matrix pavement bituminous concrete construction method, this soft soil matrix road surface bituminous concrete construction method is as follows:

[0024] The first step is to use cleaning tools to clean the surface of the pavement base before construction. To achieve dryness and cleanness without loose stones, dust and impurities, the width of the cleaning should be at least 30cm beyond the edge of the asphalt concrete surface to be paved. When the places polluted by sundries cannot be washed away, they should be chiseled off manually;

[0025] The second step is to treat the soft soil, first dig out the soft soil silt, remove the soft soil, residues, etc., and then fill the soil to make a smooth surface, layered rolling and flattening;

[0026] The third step is to prepare a semi-rigid base material with a suitable ratio, and then spread the semi-rigid base material on the treated soft soil foundation, and then carry out rolling and ...

Embodiment 2

[0037] Embodiment 2: a kind of soft soil matrix pavement bituminous concrete construction method, this soft soil matrix road surface bituminous concrete construction method is as follows:

[0038] The first step is to use cleaning tools to clean the surface of the pavement base before construction. To achieve dryness and cleanness without loose stones, dust and impurities, the width of the cleaning should be at least 30cm beyond the edge of the asphalt concrete surface to be paved. When the places polluted by sundries cannot be washed away, they should be chiseled off manually;

[0039] The second step is to treat the soft soil, first dig out the soft soil silt, remove the soft soil, residues, etc., and then fill the soil to make a smooth surface, layered rolling and flattening;

[0040] The third step is to prepare a semi-rigid base material with a suitable ratio, and then spread the semi-rigid base material on the treated soft soil foundation, and then carry out rolling and ...

Embodiment 3

[0051] Embodiment 3: a kind of soft soil matrix road surface bituminous concrete construction method, this soft soil matrix road surface bituminous concrete construction method is as follows:

[0052] The first step is to use cleaning tools to clean the surface of the pavement base before construction. To achieve dryness and cleanness without loose stones, dust and impurities, the width of the cleaning should be at least 30cm beyond the edge of the asphalt concrete surface to be paved. When the places polluted by sundries cannot be washed away, they should be chiseled off manually;

[0053] The second step is to treat the soft soil, first dig out the soft soil silt, remove the soft soil, residues, etc., and then fill the soil to make a smooth surface, layered rolling and flattening;

[0054] The third step is to prepare a semi-rigid base material with a suitable ratio, and then spread the semi-rigid base material on the treated soft soil foundation, and then carry out rolling ...

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Abstract

The invention discloses a soft soil matrix pavement asphalt concrete construction method. The soft soil matrix pavement asphalt concrete construction method comprises the following steps: before construction, cleaning a to-be-constructed pavement base layer; then, treating the soft soil; preparing a semi-rigid material in a certain proportion; paving the semi-rigid base layer raw material on the treated soft soil base; rolling and curing are carried out; preparing asphalt concrete with a proper proportion; then observing the asphalt-aggregate ratio situation on site, properly adjusting the asphalt-aggregate ratio if necessary, transporting the finally blended asphalt concrete to a rolled and cured semi-rigid base layer, carrying out laying work, carrying out compaction work after laying iscompleted, and finally treating joints. Through accurate control over the quality and proportion of raw materials and a strict construction method, it is ensured that each step can be safely and smoothly executed, the firmness of the soft soil base foundation is ensured, and the situation that the soft soil foundation sinks is prevented.

Description

technical field [0001] The invention relates to the technical field of road construction, in particular to an asphalt concrete construction method for soft soil matrix pavement. Background technique [0002] As the preferred material for high-grade pavement, asphalt concrete has many advantages. However, due to the influence of factors such as traffic growth, environmental changes, temperature changes, humidity changes, freezing, construction, material adoption and maintenance, various asphalt pavement diseases have appeared, such as cracks, ruts and water damage on asphalt pavement. These diseases not only bring various hidden dangers to road traffic, but also reduce the strength of roadbed and road surface, affecting the normal use of roads; at the same time, they also greatly shorten the service life of asphalt pavement, and cause considerable economic losses. , this is a problem that cannot be ignored. [0003] In the existing construction process, there is no more com...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01C7/18
CPCE01C7/18
Inventor 周家春
Owner 周家春
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