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Graded crushed stone poured semi-flexible composite pavement mixture and pavement construction method

A technology of graded gravel and composite pavement, applied in the direction of on-site coagulation pavement, roads, roads, etc., can solve the problem of reducing the semi-flexible pavement of the submerged type, achieve excellent road performance and reduce energy consumption , the effect of economic and social benefits is significant

Active Publication Date: 2021-09-17
HOHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a graded crushed stone poured semi-flexible composite pavement mixture that can be constructed at normal temperature. The semi-flexible composite pavement of the present invention can be constructed at normal temperature, which can effectively solve the problem of rutting on asphalt pavement. Improve the durability of the pavement; reduce the pollution of the poured semi-flexible pavement hot mix construction to the environment; improve the construction efficiency of the poured composite pavement and reduce production costs

Method used

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  • Graded crushed stone poured semi-flexible composite pavement mixture and pavement construction method
  • Graded crushed stone poured semi-flexible composite pavement mixture and pavement construction method
  • Graded crushed stone poured semi-flexible composite pavement mixture and pavement construction method

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Embodiment 1

[0036] The invention provides a graded crushed stone pouring type semi-flexible composite pavement mixture which can be constructed at normal temperature.

[0037] The composition of the mixture is calculated in parts by weight: 100 parts of graded crushed stone, 3 parts of drinking water, and 6 parts of high fluidity grouting material; the aggregate used for the graded crushed stone is limestone aggregate, and the The high-fluidity grouting material is composed of cement, water-based acrylic resin, pozzolan material and water, the cement is 2 parts, the water-based acrylic resin is 2 parts, the pozzolan material is 1 part, and the water for 1 serving. Graded gravel has the characteristics of flexible pavement, while high-fluidity grouting material has a certain degree of rigidity. The graded gravel poured semi-flexible composite pavement formed by combining the two has the advantages of both.

[0038] In order to ensure the characteristics of the flexible pavement of graded ...

Embodiment 2

[0052] The invention provides a graded crushed stone pouring type semi-flexible composite pavement mixture which can be constructed at normal temperature.

[0053]The composition of the mixture is calculated in parts by weight: 100 parts of graded crushed stone, 5 parts of drinking water, and 10 parts of high fluidity grouting material; the aggregate used for the graded crushed stone is basalt aggregate, and the The high-fluidity grouting material is composed of cement, water-based acrylic resin, pozzolan material and water, the cement is 4 parts, the water-based acrylic resin is 2 parts, the pozzolan material is 1 part, and the water Makes 2 servings. Graded gravel has the characteristics of flexible pavement, while high-fluidity grouting material has a certain degree of rigidity. The graded gravel poured semi-flexible composite pavement formed by combining the two has the advantages of both.

[0054] In order to ensure the characteristics of the flexible pavement of graded ...

Embodiment 3

[0067] The invention provides a graded crushed stone pouring type semi-flexible composite pavement mixture which can be constructed at normal temperature.

[0068] The composition of the mixed material is calculated in parts by weight: 100 parts of graded crushed stone, 4 parts of drinking water, and 8 parts of high fluidity grouting material; the aggregates used for the graded crushed stone are limestone and basalt aggregates, The high-fluidity grouting material is composed of cement, water-based acrylic resin, pozzolan material and water, the cement is 2 parts, the water-based acrylic resin is 3 parts, the pozzolan material is 2 parts, and the of water is 1 part.

[0069] In order to ensure the characteristics of the flexible pavement of graded crushed stone, by adjusting and controlling the specific gradation, a skeleton void type graded crushed stone mixture is configured, and the grading curve of the mixture is a discontinuous grading curve, that is, more than 4.75mm Coa...

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Abstract

The invention relates to a graded crushed stone pouring type semi-flexible composite pavement mixture, comprising 100 parts of graded crushed stone in the following mass fractions; 4-6 parts of water; 6-10 parts of grouting material; the grouting material includes cement , water-based acrylic resin, pozzolan material and water, the tank slurry is poured into the graded crushed stone. The semi-flexible composite pavement mixture of the present invention can be constructed at normal temperature, which can effectively solve the problem of asphalt pavement rutting and improve the durability of the pavement; reduce the pollution of the poured semi-flexible pavement hot-mix construction to the environment; improve The construction efficiency of the poured composite pavement reduces the production cost.

Description

technical field [0001] The invention relates to a composite pavement, in particular to a graded crushed stone poured semi-flexible composite pavement mixture and a pavement construction method. Background technique [0002] my country's highway pavement is mainly flexible asphalt pavement. The asphalt binder used in flexible asphalt pavement is a temperature-sensitive material. Under the joint action of temperature and vehicle load, asphalt will creep, resulting in rutting, pan A series of disease problems such as oil and sacks, especially in summer high temperature seasons, seriously affect the driving quality and driving safety of the road surface. Therefore, the use of semi-flexible pavement is of great significance for improving the anti-rutting performance and durability of the road surface. [0003] At present, the semi-flexible pavement at home and abroad is mainly based on the pouring type. The so-called pouring semi-flexible pavement is a composite pavement formed by...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/02E01C7/14E01C7/30C04B111/70
CPCC04B28/02C04B2111/0075C04B2111/70C04B2201/50E01C7/142E01C7/30C04B24/26C04B14/14C04B14/02C04B20/0076
Inventor 于新梁星敏邹晓勇吴闻秀
Owner HOHAI UNIV
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