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Preparation method of high-molecular polymer crack filler for pavements

A high-molecular polymer and joint-filling adhesive technology, which is applied in the direction of roads, roads, adhesives, etc., can solve the problems of low-temperature flexibility and durability, low-temperature adhesion, and high construction costs, achieving strong stability and improving compatibility sexual effect

Active Publication Date: 2013-10-23
SHANDONG ZERUI NEW MATERIAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the low-temperature adhesion between the existing crack repair materials and the old oil surface is low, and the low-temperature flexibility and durability are poor. In areas with cold climate and strong ultraviolet rays, cracks on asphalt pavement need to be repaired every year; similar foreign products still have the problems of high price, complicated construction equipment and high construction cost

Method used

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  • Preparation method of high-molecular polymer crack filler for pavements

Examples

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Comparison scheme
Effect test

Embodiment 1

[0019] A preparation method of high molecular polymer joint glue for pavement. The raw materials are composed of: 70# or 90# straight-run asphalt 65-72%, SBS 15-20%, compatibilizer 8-15%, stable Agent 0.5-1%; The preparation method comprises the following steps:

[0020] 1), firstly heat the straight-run asphalt to 170-175°C, add SBS (styrene-butadiene-styrene block copolymer) and compatibilizer, then stir for 1-2 hours, keep warm for 1 hour; compatibilize The agent is naphthenic rubber oil;

[0021] 2) Add a stabilizer, start the colloid mill and stir for 15-30 minutes; the stabilizer is sulfur powder;

[0022] 3) Put it into the growth tank, cool down to 105-120°C and grow for 1-2 hours;

[0023] 4), unloading and packaging.

Embodiment 2

[0025] A preparation method of high molecular polymer joint glue for pavement. The raw materials are composed of: 70# or 90# straight-run asphalt 65-72%, SBS 15-20%, compatibilizer 8-15%, stable Agent 0.5-1%; The preparation method comprises the following steps:

[0026] 1) First, heat the straight-run asphalt to 170-175°C, add SBS and compatibilizer, then stir for 1-2 hours, and keep warm for 1 hour; the compatibilizer is reverse sequence furfural extraction oil;

[0027] 2) Add a stabilizer, start the colloid mill and stir for 15-30 minutes; the stabilizer is sulfur powder;

[0028] 3) Put it into the growth tank, cool down to 105-120°C and grow for 1-2 hours;

[0029] 4), unloading and packaging.

Embodiment 3

[0031] A preparation method of high molecular polymer joint glue for pavement. The raw materials are composed of 70# or 90# straight run asphalt 70%, SBS 18%, compatibilizer 11.5%, stabilizer 0.5%; The bitumen is preferably a straight-run intermediate bitumen with an aromatic content of 35%, a colloid content of 40-45%, a softening point of 45°C, and a ductility of more than 150 (5cm / min) at 15°C; the preparation method includes the following steps:

[0032] 1), firstly heat the straight-run asphalt to 170-175°C, add SBS and compatibilizer, then stir for 1-2 hours, keep warm for 1 hour; the compatibilizer is m-isopropenyl-2,2-dimethyl Benzoyl isocyanate;

[0033] 2) Add a stabilizer, start the colloid mill and stir for 15-30 minutes; the stabilizer is dibasic lead stearate;

[0034] 3) Put it into the growth tank, cool down to 105-120°C and grow for 1-2 hours;

[0035] 4), unloading and packaging.

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Abstract

The invention relates to a preparation method of a high-molecular polymer crack filler for pavements. The high-molecular polymer crack filler for pavements is prepared from the following raw materials in percentage by weight: 65-72% of 70# or 90# straight-run asphalt, 15-20% of SBS (styrene-butadiene-styrene), 8-15% of compatilizer and 0.5-1% of stabilizer. The preparation method comprises the following steps: 1) heating the straight-run asphalt to 170-175 DEG C, adding the SBS and compatilizer, stirring for 1-2 hours, and keeping the temperature for 1 hour; 2) adding the stabilizer, starting a colloid mill, and stirring for 15-30 minutes; 3) sending into a development tank, cooling to 105-120, and developing for 1-2 hours; and 4) discharging, and packaging. The compatibility between the asphalt and high-molecular polymer is enhanced by regulating the raw material proportion and selecting the optimal compatilizer; and the prepared high-molecular polymer crack filler for pavements has the advantages of high stability, high low-temperature elongation percentage and high binding strength with pavements.

Description

technical field [0001] The invention relates to the field of road surface joint filling glue, in particular to a preparation method of high molecular polymer joint filling glue for road surface. Background technique [0002] With the construction and development of high-grade roads in my country in recent years, more and more people favor asphalt pavement, which is the main structural form of road and urban road pavement in China. However, during the use of asphalt roads, due to the combined effects of vehicle loads and natural environments for a long time, the asphalt pavement cracks and cracks occur. It will greatly weaken the strength and stability of the roadbed, cause more serious damage to the asphalt pavement, often bring a lot of inconvenience to driving, greatly shorten the service life of the road, and accelerate the destruction of the road surface. In the whole road maintenance work, the central part of the road maintenance action in the road maintenance room, se...

Claims

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Application Information

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IPC IPC(8): C09J195/00C09J153/02C08L95/00C08L53/02E01C11/02
Inventor 夏文强李广志钟士涛
Owner SHANDONG ZERUI NEW MATERIAL TECH
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