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A cold joint material for drainage asphalt pavement and its preparation method and application

A technology for drainage of asphalt and joints, applied in the direction of asphalt material adhesives, roads, roads, etc., can solve the problem of poor bonding bending and tensile strength, achieve good water permeability, reduce transverse cracks and longitudinal cracks, The effect of prolonging the service life

Active Publication Date: 2020-04-07
RES INST OF HIGHWAY MINIST OF TRANSPORT +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current joint materials are not satisfactory in terms of cohesiveness, water permeability, bending and tensile strength, etc., and cannot completely solve the above defects. Therefore, further research on this is necessary

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Embodiment 1 A kind of drainage asphalt pavement cold joint material

[0026] This embodiment provides a cold joint material for drainage asphalt pavement, which is prepared from the following components in parts by weight: 1 part of water-based epoxy resin, 1.5 parts of water-based epoxy resin curing agent, 50 parts of anionic emulsified asphalt, and 1.5 parts of water.

[0027] Wherein, the water-based epoxy resin is a water-soluble epoxy resin with a solid content of 75% and an epoxy value of 0.41;

[0028] The water-based epoxy resin curing agent is tetraethylenepentamine, and its solid content is 50%;

[0029] The anionic emulsified asphalt is prepared from the following components in parts by weight: 50.0 parts of asphalt, 8.0 parts of anionic emulsifier sodium dodecylsulfonate, and 42.0 parts of water; the solid content of the anionic emulsified asphalt is 50%.

Embodiment 2

[0030] Embodiment 2 A kind of drainage asphalt pavement cold joint material

[0031] This embodiment provides a cold joint material for drainage asphalt pavement, which is prepared from the following components in parts by weight: 1 part of water-based epoxy resin, 1.5 parts of water-based epoxy resin curing agent, 100 parts of anionic emulsified asphalt, and 1.5 parts of water.

[0032] Wherein, the water-based epoxy resin is a water-soluble epoxy resin with a solid content of 75% and an epoxy value of 0.41;

[0033] Described water-based epoxy resin curing agent selects triethylenetetramine, and its solid content is 50%;

[0034] The anionic emulsified asphalt is prepared from the following components by weight: 60.0 parts of asphalt, 5.0 parts of anionic emulsifier sodium didodecyl phenyl ether disulfonate, 35.0 parts of water; the solid content of the anionic emulsified asphalt is 40 %.

Embodiment 3

[0035] Embodiment 3 A kind of drainage asphalt pavement cold joint material

[0036] This embodiment provides a cold joint material for drainage asphalt pavement, which is prepared from the following components in parts by weight: 1 part of water-based epoxy resin, 1.5 parts of water-based epoxy resin curing agent, 66.7 parts of anionic emulsified asphalt, and 1.5 parts of water.

[0037] Wherein, the water-based epoxy resin is a water-soluble epoxy resin with a solid content of 75% and an epoxy value of 0.41;

[0038] The water-based epoxy resin curing agent selects diethylenetriamine, and its solid content is 50%;

[0039] The anionic emulsified asphalt is prepared from the following components in parts by weight: 70.0 parts of asphalt, 1.0 part of anionic emulsifier sodium dibutylnaphthalene sulfonate, and 29.0 parts of water; the solid content of the anionic emulsified asphalt is 70%.

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PUM

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Abstract

The invention relates to a drainage asphalt pavement cold seam material and a preparation method and application thereof. The drainage asphalt pavement cold seam material is prepared from 1 part by weight of an aqueous epoxy resin, 1.5 parts by weight of an aqueous epoxy resin curing agent, 50 to 100 parts by weight of anionic emulsified asphalt and 1 to 2 parts by weight of water. The cold seam material has low temperature stability, high temperature stability, good cohesion and water seepage effects, realizes good connection of the original pavement and newly paved pavement, reduces transverse and longitudinal cracks, prolongs a service life of the pavement, has good water permeability and smoothly discharges rain water.

Description

technical field [0001] The invention relates to a cold joint material for drainage asphalt pavement and its preparation method and application, belonging to the technical field of drainage asphalt pavement joints. Background technique [0002] Drainage asphalt pavement joints usually refer to the technical construction process of dealing with the stubble parts between different road widths during the construction and paving of traffic road pavements. Compared with the pavement construction using drainage asphalt materials, the joint of drainage asphalt pavement is an important factor affecting the smoothness of the road surface, and it is also an important part of the road surface disease, which is easy to cause pavement structural defects. During the opening process of the pavement, jumping at the joint position of the drainage asphalt pavement is an important phenomenon that often occurs when driving on the road and affects the driving quality. If it is not in place, the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J195/00C09J163/00C09J11/06E01C11/02
Inventor 曹东伟许斌平树江李明亮李俊彩雷州尘福涛
Owner RES INST OF HIGHWAY MINIST OF TRANSPORT
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