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High-modulus asphalt material with excellent durability and preparation method thereof

An asphalt material, high modulus technology, applied in building insulation materials, building components, buildings, etc., can solve the problems of decreased durability of asphalt materials, shortening the service life of roads, hardening and cracking of asphalt pavement, and improving heat resistance , good synergistic effect, and the effect of improving fatigue performance

Inactive Publication Date: 2021-03-30
徐州市融道路桥有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With the increase of road traffic volume, the load pressure on the road surface is also increasing, resulting in premature rutting on many expressways, causing deformation of the road surface and shortening the service life of the road.
[0004] In addition, due to the poor temperature sensitivity due to the composition and structure of asphalt, it is easy to cause asphalt pavement to soften at high temperature and harden at low temperature.
Asphalt is a polymer material, and the anti-aging effect is not ideal. During the storage and construction of asphalt, the combined action of high temperature and oxygen will cause asphalt to undergo thermo-oxidative aging. With slow oxidation reaction, the durability of asphalt material is greatly reduced

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] The high modulus asphalt material with excellent durability comprises the following steps:

[0033](1) The high modulus additive is mainly composed of the following components in parts by mass: 18 parts of styrene-butadiene-styrene block copolymer, 12 parts of high-density polyethylene, and 10 parts of polyethylene PE , 8 parts of low-density polyethylene, 6 parts of organosilicon-modified hydroxyl-terminated hyperbranched polyester resin, 6 parts of polypropylene, and 6 parts of linear low-density polyethylene. Prepare materials according to the above formula, and prepare styrene-butadiene-benzene Ethylene block copolymer, high-density polyethylene, polyethylene PE, low-density polyethylene, silicone-modified hydroxyl-terminated hyperbranched polyester resin, polypropylene, and linear low-density polyethylene are uniformly mixed, heated and melted, and heated and melted at 200°C, heated and melted, extruded through a screw extruder, cooled at room temperature, cut into...

Embodiment 2

[0038] (1) The high-modulus additive is mainly composed of the following components in parts by mass: 15 parts of styrene-butadiene-styrene block copolymer, 10 parts of high-density polyethylene, and 12 parts of polyethylene PE , 10 parts of low-density polyethylene, 6 parts of organosilicon-modified hydroxyl-terminated hyperbranched polyester resin, 8 parts of polypropylene, and 5 parts of linear low-density polyethylene, prepare materials according to the above formula, and prepare styrene-butadiene-benzene Ethylene block copolymer, high-density polyethylene, polyethylene PE, low-density polyethylene, silicone-modified hydroxyl-terminated hyperbranched polyester resin, polypropylene, and linear low-density polyethylene are uniformly mixed, heated and melted, and heated and melted 210°C, heat and melt, extrude through a screw extruder, cool at room temperature, cut into granules, and obtain high modulus additives;

[0039] (2) According to the above formula, the No. 15 hard a...

Embodiment 3

[0043] (1) The high modulus additive is mainly composed of the following components in parts by mass: 16 parts of styrene-butadiene-styrene block copolymer, 12 parts of high-density polyethylene, and 12 parts of polyethylene PE , 8 parts of low-density polyethylene, 10 parts of organosilicon-modified hydroxyl-terminated hyperbranched polyester resin, 6 parts of polypropylene, and 5 parts of linear low-density polyethylene, prepare materials according to the above formula, and prepare styrene-butadiene-benzene Ethylene block copolymer, high-density polyethylene, polyethylene PE, low-density polyethylene, silicone-modified hydroxyl-terminated hyperbranched polyester resin, polypropylene, and linear low-density polyethylene are uniformly mixed, heated and melted, and heated and melted 210°C, heat and melt, extrude through a screw extruder, cool at room temperature, cut into granules, and obtain high modulus additives;

[0044] (2) According to the above formula, the No. 15 hard a...

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Abstract

A high-modulus asphalt material with excellent durability and a preparation method thereof. The high-modulus asphalt material is mainly prepared from the following components in parts by mass: 50-65 parts of low-grade asphalt, 15-25 parts of a high-modulus additive, 5-10 parts of coarse aggregate, 5-10 parts of fine aggregate, 3-5 parts of mineral powder, 1-3 parts of an antioxidant, 1-3 parts ofan anti-ultraviolet agent and 0.3-0.5 part of a cross-linking agent. The high-modulus additive is mainly prepared from the following components in parts by mass: a styrene-butadiene-styrene block copolymer, high-density polyethylene, polyethylene PE, low-density polyethylene, organic silicon modified hydroxyl-terminated hyperbranched polyester resin, polypropylene and linear low-density polyethylene. According to the high-modulus asphalt material with excellent durability and the preparation method of the high-modulus asphalt material, the formula is reasonable, the preparation process is simple, the durability is excellent, the modulus of the asphalt material is improved, the high-temperature deformation resistance of an asphalt pavement is improved, the anti-fatigue performance of the asphalt material is improved, and the application prospect is expanded.

Description

technical field [0001] The invention belongs to the technical field of asphalt materials, and in particular relates to a high-modulus asphalt material with excellent durability and a preparation method thereof. Background technique [0002] With the continuous development of road construction in the world, asphalt has become one of the most widely used road pavement materials in the world. Its advantages are as follows: asphalt pavement has better flatness, and cars run smoothly and comfortably on the road; asphalt pavement has certain plasticity and viscosity. Elasticity, not only can bear enough vehicle load, but also has good relaxation performance; there is good adhesion between asphalt pavement and car tires; asphalt pavement has a high effect of shock absorption and noise reduction; asphalt pavement can be recycled. [0003] In recent years, my country's road construction has developed rapidly, and it has become a major highway country in the world. China's expressways...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L95/00C08L53/02C08L23/06C08L67/00C08L23/12C08L23/08C08K3/013C08K3/26C08K13/02
CPCC08L95/00C08L2201/08C08K2003/265C08L2205/025C08L2205/035C08L2207/062C08L2207/066C08L53/02C08L23/06C08L67/00C08L23/12C08L23/0815C08K3/013C08K3/26C08K13/02
Inventor 张明明
Owner 徐州市融道路桥有限公司
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