Invisible crack welding material for pavement base and construction technology for welding material

A technology of invisible cracks and pavement base, which is applied in the field of invisible crack welding material and construction technology of pavement base, which can solve the problems of difficult maintenance, pavement damage, high cost, etc., and achieve the effect of convenient construction, reduced repair cost and high viscosity

Active Publication Date: 2014-06-04
河南万里交通科技集团股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Due to long-term use and damage to the natural environment, ordinary roads and expressways will suffer from various degrees of disease after a period of use, such as cracks in the asphalt layer of the road surface, such as figure 1 As shown, the hidden cracks in the pavement base are as follows figure 2 As shown, there are network cracks, cracks and other cracks on the pavement. Among them, the hidden cracks in the pavement base are hidden under the asphalt layer, and the surface looks good. Therefore, such cracks are often not repaired in time, which will cause serious damage to the pavement. Destruction, later maintenance is more difficult and expensive
[0003] Due to the limitations of detection technology and crack treatment technology, the current conventional crack treatment and filling technology is still powerless to deal with hidden cracks in the pavement base, and can only be treated when they develop into manifest cracks

Method used

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  • Invisible crack welding material for pavement base and construction technology for welding material
  • Invisible crack welding material for pavement base and construction technology for welding material
  • Invisible crack welding material for pavement base and construction technology for welding material

Examples

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Embodiment 1

[0028] The invention discloses a welding material for invisible cracks in a pavement base layer, which is made of 84 kg of aggregate, 12 kg of polymer material and 3 kg of additives.

[0029] The aggregate is sand and gravel with a diameter of 0-0.5 mm or 0.5-3 mm.

[0030] The polymer material described is one-component polyurethane 。

[0031] The additive is one or a combination of butyl acrylate, xylylenediamine, ethylenediamine, and polyacrylic acid 。

[0032] The construction process of the invisible crack welding material of the pavement base, the construction process comprises the following steps:

[0033] Step 1. Detection: Use ground penetrating radar to detect the position, depth, and width of invisible cracks in the pavement base, and record them;

[0034] Step 2. Material selection: Determine the material diameter of the aggregate to be used according to the width of the crack detected in step 1. For cracks with a width greater than 5 mm, use aggregates with a ...

Embodiment 2

[0043] The invention discloses a welding material for invisible cracks in a pavement base layer, which is made of 85 kg of aggregate, 11 kg of polymer material and 4 kg of additives.

[0044] The aggregate is sand and gravel with a diameter of 0-0.5 mm or 0.5-3 mm.

[0045] The polymer material described is two-component polyurethane 。

[0046] The additive is one or a combination of butyl acrylate, xylylenediamine, ethylenediamine, and polyacrylic acid 。

[0047] The construction process of the invisible crack welding material of the pavement base, the construction process comprises the following steps:

[0048] Step 1. Detection: Use ground penetrating radar to detect the position, depth, and width of invisible cracks in the pavement base, and record them;

[0049] Step 2. Material selection: Determine the material diameter of the aggregate to be used according to the width of the crack detected in step 1. For cracks with a width greater than 5 mm, use aggregates with a ...

Embodiment 3

[0058] The invention discloses a welding material for invisible cracks in a pavement base layer, which is made of 83kg of aggregate, 14kg of polymer material and 3kg of additives.

[0059] The aggregate is sand and gravel with a diameter of 0-0.5 mm or 0.5-3 mm.

[0060] The polymer material is a liquid resin 。

[0061] The additive is one or a combination of butyl acrylate, xylylenediamine, ethylenediamine, and polyacrylic acid 。

[0062] The construction process of the invisible crack welding material of the pavement base, the construction process comprises the following steps:

[0063] Step 1. Detection: Use ground penetrating radar to detect the position, depth, and width of invisible cracks in the pavement base, and record them;

[0064] Step 2. Material selection: Determine the material diameter of the aggregate to be used according to the width of the crack detected in step 1. For cracks with a width greater than 5 mm, use aggregates with a material diameter of 0.5-...

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Abstract

The invention belongs to the technical field of road engineering, and in particular relates to an invisible crack welding material for a pavement base and a construction technology for the welding material. The welding material is prepared from the following components in percentage by weight: 80 to 85 percent of aggregate, 10 to 15 percent of polymer and 3 to 5 percent of additive; invisible cracks of the pavement base are repaired by a series of procedures of detection, material selection, cleaning, perforation, welding and detection; the polymer is used as adhesive and effectively combined with the pavement base to form a whole, so that cracks are radically treated, and the problem of structural damage caused by the cracks is solved; heating and opening of a surface asphalt layer are not required during construction, the welding material can be used for construction at normal temperature, and the construction is not affected by season, temperature and environment; and the welding material has the advantages of low production cost, simplicity in proportioning and construction, wide construction conditions, firmness, durability and capability of forming a whole with the cracks.

Description

technical field [0001] The invention belongs to the technical field of road engineering, and in particular relates to an invisible crack welding material for pavement bases with low production cost, simple proportioning and construction technology, wide construction conditions, firmness and durability, and the ability to form an integral body with cracks and its construction technology. Background technique [0002] Due to long-term use and damage to the natural environment, ordinary roads and expressways will suffer from various degrees of disease after a period of use, such as cracks in the asphalt layer of the road surface, such as figure 1 As shown, the hidden cracks of the pavement base are as follows figure 2 As shown, there are network cracks, cracks and other cracks on the pavement. Among them, the hidden cracks in the pavement base are hidden under the asphalt layer, and the surface looks good. Therefore, such cracks are often not repaired in time, which will cause...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B26/16C04B26/02C04B26/06C04B26/04E01C23/09
Inventor 张红春付建红
Owner 河南万里交通科技集团股份有限公司
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