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A kind of super-strength composite sealing material for highway and its construction application

A layer material, highway technology, applied in the directions of roads, coatings, roads, etc., can solve the problems of poor high temperature aging resistance and short service life of pavement, and achieve the effect of thinning pavement structure, reducing dependence and improving durability

Active Publication Date: 2019-09-20
王朝辉
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a super-strong composite sealing material for roads and its construction application, so as to solve the technical problem of poor high-temperature aging resistance of the existing road surface, resulting in short service life of the road surface

Method used

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  • A kind of super-strength composite sealing material for highway and its construction application
  • A kind of super-strength composite sealing material for highway and its construction application
  • A kind of super-strength composite sealing material for highway and its construction application

Examples

Experimental program
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Effect test

Embodiment 1

[0054] This embodiment provides a super-strong composite seal material for highways, including bonding layer materials and gravel, and also includes energy-absorbing spray coating materials;

[0055] The energy-absorbing spraying layer is sprayed with the energy-absorbing spraying layer material to form the energy-absorbing spraying layer; Layers are arranged sequentially from bottom to top;

[0056] The energy-absorbing spray coating material is made of the following raw materials in parts by weight: 100 parts of polyurea prepolymer, 18 parts of nano-graphene, 9 parts of chain extender, and 2 parts of coupling agent 1. The defoamer is 2 parts, and the filler is 3 parts; the polyurea prepolymer is made of the following raw materials in parts by weight: 20 parts of isocyanate and 80 parts of amino compound.

[0057] In this example:

[0058] The isocyanate is methyl isocyanate.

[0059] The amino compound is an amino-terminated polyether, and the number-average molecular wei...

Embodiment 2

[0084] This embodiment provides a super-strength composite sealing material for roads. The difference between this super-strong composite sealing material for roads and Example 1 is that the formulation of the energy-absorbing spray coating material is different, as follows:

[0085] The energy-absorbing spray coating material is made of the following raw materials in parts by weight: 100 parts of polyurea prepolymer, 30 parts of nano-graphene, 9 parts of chain extender, and 2 parts of coupling agent 1. The defoamer is 2 parts, and the filler is 3 parts; the polyurea prepolymer is made of the following raw materials in parts by weight: 35 parts of isocyanate and 65 parts of amino compound.

[0086] The selection and specification requirements of each raw material in this embodiment are the same as those in Embodiment 1.

[0087] Application 1: The super-strong composite sealing layer material for roads in this embodiment is used in the construction and application of the lower...

Embodiment 3

[0091] This embodiment provides a super-strength composite sealing material for roads. The difference between this super-strong composite sealing material for roads and Example 1 is that the formulation of the energy-absorbing spray coating material is different, as follows:

[0092] The energy-absorbing spray coating material is made of the following raw materials in parts by weight: 100 parts of polyurea prepolymer, 12 parts of nano-graphene, 9 parts of chain extender, and 2 parts of coupling agent 1. The defoamer is 2 parts, and the filler is 3 parts; the polyurea prepolymer is made of the following raw materials in parts by weight: 20 parts of isocyanate and 80 parts of amino compound.

[0093] The selection and specification requirements of each raw material in this embodiment are the same as those in Embodiment 1.

[0094] Application 1: The super-strong composite sealing layer material for roads in this embodiment is used in the construction and application of the lower...

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Abstract

The invention provides a super-strength composite sealing layer material for roads, which includes a bonding layer material and crushed stones, and also includes an energy-absorbing spray layer material; an energy-absorbing sprayed layer, a bonding layer and crushed stones The sprinkling layer is arranged sequentially from bottom to top; the energy-absorbing spray coating material is made of the following raw materials: polyurea prepolymer, nano-graphene, chain extender, coupling agent, defoamer and filler; The polyurea prepolymer described above is made from the following raw materials: isocyanate and amino compound. The super-strong composite sealing layer material for highway is used for the construction application of the lower sealing layer or the upper sealing layer, and is used for the surface or interlayer of road surface, bridge surface and tunnel surface. Based on the stress absorption effect and high temperature resistance effect of the super strong composite sealing material. The invention can absorb and dissipate the mechanical stress generated by the impact of the driving load and the vibrating road surface, the stress absorption effect is remarkable, the stress absorption function will never fail, and a long-life road structure system can be truly established.

Description

technical field [0001] The invention relates to the field of road engineering, in particular to a super-strong composite sealing material for roads and its construction application. Background technique [0002] With the development of my country's highway traffic, the original pavement structure can no longer meet the increasing traffic demand, especially for heavy-duty traffic, the pavement structure is seriously damaged, and the road surface condition is deteriorating at an accelerated rate. If a super-strong composite sealing material can be arranged on the pavement surface or between layers, the service life of the pavement can be prolonged and the thickness of the pavement structure can be reduced. At the same time, considering the current situation of the lack of stone materials caused by government restrictions on mountain opening, the installation of super-strong composite sealing materials can reduce the dependence on stone materials in the process of pavement cons...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01C7/35C09D175/02C09D7/61
Inventor 王朝辉王帅李彦伟陈宝高志伟
Owner 王朝辉