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Modified asphalt and preparation method thereof

A technology of modified asphalt and modifier, applied in building components, building insulation materials, buildings, etc., can solve problems such as performance restraint and poor effect, improve strength and anti-rutting ability, improve modification effect, guarantee The effect of the dispersion effect

Inactive Publication Date: 2017-09-29
广东诚泰投资集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, most of the current modified asphalt is modified with a single modifier. Although there are some open documents that use composite modifiers to modify asphalt, the performance after modification is hampered and the effect is not good.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A modified asphalt, in parts by weight, its main components are: 75 parts of petroleum asphalt, 1 part of modifier A, 5 parts of modifier B, 2 parts of sulfur, and 0.5 part of toughening agent; wherein, the modifier A is PE rubber powder, and the modifier B mainly includes PP recycled material particles, PE recycled material particles, and PP / PE blend particles.

[0020] Wherein, the main components of the modifier B, in parts by weight, are: 20 parts of PP recycled material particles, 40 parts of PE recycled material particles, and 10 parts of PP / PE blend particles.

[0021] Wherein, the particle size of the PE rubber powder is 40 mesh.

[0022] Wherein, the PP recycled material particles and the PE recycled material particles are all directly crushed from waste materials or processing waste.

[0023] Wherein, the PP / PE blend material particles are made of PP and PE blended in a screw machine and then granulated.

[0024] The method for preparing the modified asphalt of this em...

Embodiment 2

[0030] A modified asphalt, in parts by weight, its main components are: 90 parts of petroleum asphalt, 3 parts of modifier A, 20 parts of modifier B, 5 parts of sulfur, and 3 parts of toughening agent; wherein, the modifier A is PE rubber powder, and the modifier B mainly includes PP recycled material particles, PE recycled material particles, and PP / PE blend particles.

[0031] Wherein, the main components of the modifier B, in parts by weight, are: 50 parts of PP recycled material particles, 90 parts of PE recycled material particles, and 30 parts of PP / PE blend particles.

[0032] Wherein, the particle size of the PE rubber powder is 80 mesh.

[0033] Wherein, the PP recycled material particles and the PE recycled material particles are all directly crushed from waste materials or processing waste.

[0034] Wherein, the PP / PE blend material particles are made of PP and PE blended in a screw machine and then granulated.

[0035] The method for preparing the modified asphalt of this e...

Embodiment 3

[0041] A modified asphalt, in parts by weight, its main components are: 80 parts of petroleum asphalt, 2 parts of modifier A, 15 parts of modifier B, 3 parts of sulfur, and 2 parts of toughener; wherein, the modifier A is PE rubber powder, and the modifier B mainly includes PP recycled material particles, PE recycled material particles, and PP / PE blend particles.

[0042] Wherein, the main components of the modifier B are, in parts by weight: 35 parts of PP recycled material particles, 60 parts of PE recycled material particles, and 20 parts of PP / PE blend particles.

[0043] Wherein, the particle size of the PE rubber powder is 60 mesh.

[0044] Wherein, the PP recycled material particles and the PE recycled material particles are all directly crushed from waste materials or processing waste.

[0045] Wherein, the PP / PE blend material particles are made of PP and PE blended in a screw machine and then granulated.

[0046] The method for preparing the modified asphalt of this embodimen...

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Abstract

The invention discloses modified asphalt, which is mainly prepared from 75 to 90 parts of petroleum asphalt, 1 to 3 parts of modifier A, 5 to 20 parts of modifier B, 2 to 5 parts of sulphur, and 0.5 to 3 parts of toughening agent, wherein the modifier A is PE (Poly Ethylene) gelatin powder; the modifier B is mainly prepared from PP (Polypropylene) recycling material particles, PE recycling material particles, and PP / PE pre-blending material particles. The PP / PE pre-blending material particles are selected to be together with the PP recycling material particles, the PE recycling material particles and the PE gelatin powder to jointly modify asphalt, so that when modifying is carried out, the high-strength PP / PE pre-blending material is introduced at the same time, meanwhile, when modifying is carried out, the PP recycling material particles, the PE recycling material particles and the PE gelatin powder are further crosslink blended, the stability of the system is improved, various performances of the modified asphalt cannot be affected, and meanwhile, waste recovery is realized. The invention also discloses a preparation method of the modified asphalt.

Description

Technical field [0001] The invention relates to the technical field of asphalt, and specifically discloses a modified asphalt and a preparation method thereof. Background technique [0002] Many changes have taken place in modern highways and roads: the traffic flow and driving frequency have increased dramatically, the axle load of freight vehicles has been increasing, and lane-divided one-way driving is generally implemented. It is required to further improve the road surface resistance, that is, the ability to resist rutting at high temperatures; Flexibility and elasticity, that is, the ability to resist cracking at low temperatures; improve wear resistance and extend service life. Modern buildings generally use large-span pre-stressed roof panels, which require roof waterproof materials to adapt to large displacements, more resistant to harsh high and low temperature conditions, better durability, self-adhesive, convenient for construction, and reduce maintenance workload. T...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L95/00C08L23/06C08L23/12C08K3/06
CPCC08L95/00C08L2205/025C08L2205/035C08L2207/20C08L23/06C08L23/12C08K3/06
Inventor 邓志明石路
Owner 广东诚泰投资集团有限公司
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