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A high-performance wide-area asphalt joint glue for roads

A high-performance technology for seam filling, applied in the direction of asphalt material adhesives, adhesives, polymer adhesive additives, etc. Improve, improve high temperature performance, improve compatibility effect

Inactive Publication Date: 2020-11-17
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The joint glue used in the market is generally weak in adapting to the temperature range, especially in the northern region, when the temperature is high in summer, the joint glue is easy to soften, melt, or even flow, and it is prone to brittleness in winter , and under the action of environmental factors and vehicle loads, its failure rate is too fast, resulting in waste of materials and costs

Method used

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  • A high-performance wide-area asphalt joint glue for roads
  • A high-performance wide-area asphalt joint glue for roads
  • A high-performance wide-area asphalt joint glue for roads

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Embodiment Construction

[0025] The technical solution of the present invention will be further described below in conjunction with the accompanying drawings, but it is not limited thereto. Any modification or equivalent replacement of the technical solution of the present invention without departing from the spirit and scope of the technical solution of the present invention should be covered by the present invention. within the scope of protection.

[0026] The invention provides a high-performance wide-area asphalt joint glue for roads, which uses a silane coupling agent to modify nano silicon dioxide and applies it to the asphalt joint glue. Specifically include the following:

[0027] 1. Experimental part

[0028] 1. Raw materials:

[0029] No. 90 petroleum asphalt, silane coupling agent (KH550, KH560), SBS modifier, SBR modifier, rubber filler oil, rubber powder, nano-silica powder.

[0030] 2. Preparation method of modified nano silica:

[0031] The nano silica modified by KH550 is abbrevia...

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Abstract

The invention discloses a high-performance road multiphalte filling glue, which is prepared by doping an SBS modified asphalt filling glue with modified nano-silica, wherein the doping amount of the modified nano-silica is 5-10% of the total mass of the multiphalte filling glue. According to the present invention, nano-silica is modified with the amino functional silane coupling agent (KH550), andthe temperature adaptation range and the durability of the filling glue are improved by determining the mixing ratio of the nano-silica filling glue, such that the product is suitable for areas withlarge annual temperature difference; and the obtained high-performance road multiphalte filling glue solves the problems of poor durability and easy failure of the filling glue in areas with large temperature difference.

Description

technical field [0001] The invention relates to a pavement repair material, in particular to a wide-area asphalt joint glue for roads, which is mainly used for repairing pavement cracks in areas with large annual temperature differences, and is a high-performance product among road maintenance materials. Background technique [0002] With the rapid growth of national road construction and the increase of medium and heavy vehicles in recent years, the repair problems of asphalt pavement continue to arise. The joint glue used in the market is generally weak in adapting to the temperature range, especially in the northern region, when the temperature is high in summer, the joint glue is easy to soften, melt, or even flow, and it is prone to brittleness in winter , and under the action of environmental factors and vehicle loads, its failure rate is too fast, resulting in waste of materials and costs. Contents of the invention [0003] In order to solve the above problems, the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J195/00C09J11/04C09J11/08
CPCC08K2201/011C08L2201/08C08L2205/035C09J11/04C09J11/08C09J195/00C08L21/00C08L53/02C08L9/06C08K9/06C08K3/36
Inventor 吴亦伦郝晟崔永昌
Owner HARBIN INST OF TECH
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