High-modulus modified asphalt and production method thereof

A technology of modified asphalt and production method, applied in building components, building insulation materials, construction and other directions, can solve the problems affecting the normal, safe driving, and rutting of vehicles, and achieve the effects of low cost, good toughness, and good anti-rutting performance.

Inactive Publication Date: 2021-05-07
亿虎控股有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] On the mountainous highways with long steep slopes and many sharp bends, due to the effect of a large number of heavy-duty traffic, even if modified asphalt is used, there are still relatively serious early damage phenomena such as rutting, which seriously affects the normal and safe driving of vehicles

Method used

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  • High-modulus modified asphalt and production method thereof
  • High-modulus modified asphalt and production method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] This embodiment is to prepare a kind of high modulus modified asphalt, the specific operation is as follows:

[0024] 50 tons of Korean Ssangyong 70# asphalt and 25 tons of Dalian Xitai 70# asphalt were rapidly raised from the raw material tank to 140°C through a heat exchanger, and pumped into a 150-ton high-temperature tank. After stirring for 1 hour, the heat exchanger quickly raised the temperature to 180 ℃, pumped into the workshop reaction kettle, at the same time, 4.8 tons of Sinopec YH791H SBS was lifted into the reaction kettle through the frequency conversion transmission pipe, and passed through two German SIEFER colloid mills in series (the gap between the colloid mills was adjusted to 0.3 and 0.25 units respectively) once Enter the finished product tank, open the finished product tank and stir for 2 hours, slowly and evenly add 160kg of sulfur flakes, the feeding time is controlled at 10 minutes, and after continuing to stir for 4 hours, 16 tons of I-type ru...

Embodiment 2

[0026] This embodiment also prepares a kind of high modulus modified asphalt, and the specific operation is consistent with embodiment 1:

[0027] 50 tons of Korean SK70# asphalt and 26 tons of Zhenhai 70# asphalt were rapidly raised to 150°C from the raw material tank through a heat exchanger, and pumped into a 150-ton high-temperature tank. After stirring for 1 hour, the heat exchanger rapidly raised the temperature to 185°C. Pumped into the reaction kettle of the workshop, at the same time, 4.5 tons of SBS of Xinjiang Dushanzi T6302H is lifted into the reaction kettle through the frequency conversion transmission pipe, and enters through two German SIEFER colloid mills in series (the gap between the colloid mills is adjusted to 0.3 and 0.25 units respectively). In the finished product tank, after opening the finished product tank and stirring for 2 hours, slowly and evenly add 150kg of sulfur flakes, the feeding time is controlled at 15 minutes, and after continuing to stir ...

Embodiment 3

[0029] This embodiment is also to prepare a kind of high modulus modified asphalt, and the specific operation is also consistent with embodiment 1:

[0030] 50 tons of Korean GS70# bitumen and 26 tons of Keyuan 70# bitumen were rapidly raised to 150°C from the raw material tank through the heat exchanger, and pumped into a 150-ton high-temperature tank. After stirring for 1 hour, the heat exchanger quickly raised the temperature to 185°C , pumped into the workshop reactor, and at the same time, 4.5 tons of Jinhai Chenguang T7302H SBS was lifted into the reactor through the frequency conversion transmission tube, and entered through two series-connected German SIEFER colloid mills (the gap between the colloid mills was adjusted to 0.3 and 0.25 units respectively). In the finished product tank, after opening the finished product tank and stirring for 2 hours, slowly and evenly add 180kg of sulfur flakes, the feeding time is controlled at 20 minutes, and after continuing to stir f...

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Abstract

The invention discloses high-modulus modified asphalt and a production method thereof. The high-modulus modified asphalt comprises the following components in parts by weight: 70-80 parts of mixed road petroleum asphalt, 15-20 parts of anti-rutting master batch, 4-5 parts of SBS (Styrene Butadiene Styrene), 1-2 parts of polyethylene wax and 0.1-0.2 part of a stabilizer, wherein the mixed road petroleum asphalt is straight-run asphalt of which the needle penetration at 25 DEG C is 60-100 0.1 mm and the ductility at 10 DEG C is greater than 100cm; the asphalt mixture is formed by mixing two kinds of asphalt according to the mixing weight ratio of 2: (1-2). Two kinds of road petroleum asphalt are properly matched and mixed, then proper anti-rutting master batches, SBS and polyethylene wax are selected as auxiliary materials, and sulfur flakes are used as stabilizing agents, so that the prepared high-modulus modified asphalt has good high-temperature stability, viscosity and toughness, toughness and anti-rutting performance; the low-temperature performance index is also relatively good, and the characteristics of fatigue resistance, good aging resistance, high storage stability, low cost and simple preparation process are achieved.

Description

technical field [0001] The invention relates to a high modulus modified asphalt and a production method thereof. Background technique [0002] On mountainous highways with long steep slopes and many sharp bends, due to the effect of a large amount of heavy-duty traffic, even with modified asphalt, there are still relatively serious early damage phenomena such as rutting, which seriously affects the normal and safe driving of vehicles. In order to prevent the early damage of the expressway and improve the anti-rutting ability of the pavement, increasing the modulus of the asphalt surface is one of the effective ways. Generally speaking, the rutting factor, dynamic modulus, and loss modulus of high-modulus modified asphalt are increased, respectively indicating that the rutting resistance of the modified asphalt is enhanced, the elastic deformation ability is improved, and the external force work required for the same deformation is increased. The performance optimization of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L95/00C08L53/02C08L23/06C08K3/06
CPCC08L95/00C08L2205/025C08L2205/035C08L2201/08C08L53/02C08L23/06C08K3/06
Inventor 王海荣吴亚俊
Owner 亿虎控股有限公司
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