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Anti-rutting additive with high modulus and high strength as well as preparation method and applications thereof

A high-strength, anti-rutting technology, applied in the direction of building structure, building components, building insulation materials, etc., can solve the problems of high cost, fast forming speed, complicated process, etc., to achieve extended life, simple production equipment, and low investment Effect

Active Publication Date: 2011-09-07
北京厚德交通科技股份有限公司
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Problems solved by technology

Chinese patent application CN1887951 (disclosure date 20070103) "High-grade asphalt pavement anti-rutting admixture" discloses a kind of anti-rutting admixture, and this anti-rutting admixture is made up of low-density polyethylene, high-density polyethylene, petroleum asphalt and diatomite , the product is waterproof, wear-resistant, and fast in forming speed; its disadvantages are: complicated process and high cost

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  • Anti-rutting additive with high modulus and high strength as well as preparation method and applications thereof
  • Anti-rutting additive with high modulus and high strength as well as preparation method and applications thereof
  • Anti-rutting additive with high modulus and high strength as well as preparation method and applications thereof

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Embodiment Construction

[0026] In order to better understand the present invention, the content of the present invention is further illustrated below in conjunction with the examples, but the content of the present invention is not limited to the following examples. However, the following "%" is all "mass %".

[0027] Take the modified fine-grained asphalt mixture AC-13 as an example (the following examples are given according to the addition of different qualities of asphalt mixture polymer composite additives).

[0028] 1. Asphalt: Sk-70# is used, and its quality requirements meet the technical requirements stipulated in "Technical Specifications for Construction of Highway Asphalt Pavement" JTG F40-2004. It is determined through experiments that the optimum bitumen content accounts for 5.3% of the mass of asphalt mixture.

[0029] 2. High modulus and high strength anti-rutting asphalt mixture polymer compound additive:

[0030] Mix the raw materials uniformly at room temperature according to the...

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Abstract

The invention relates to an anti-rutting additive with high modulus and high strength for an asphalt mixture as well as a preparation method and applications thereof. The polymer composite additive of the asphalt mixture is formed by mixing crosslinkable polyethylene, random polypropylene, tackifier, styrene-butadiene rubber and fiber, wherein the tackifier is terpene resin. The production method of the anti-rutting additive comprises the following steps: adding the raw materials in a proper processing device so that the raw materials are fully mixed and reacted; and granulating and shaping. The anti-rutting additive has cheap price, and can be used for increasing the road performances of the asphalt mixture such as high temperature stability, low temperature crack resistance and water stability, and prolonging the service life of pavement.

Description

technical field [0001] The invention relates to a high-modulus, high-strength anti-rutting additive and its preparation, as well as the manufacture and application of modified asphalt mixture. The high-modulus and high-strength anti-rutting additive is a composite polymer additive for asphalt mixture, and is a material for high-grade highway pavement. The invention belongs to the technical field of materials. Background technique [0002] As a widely used pavement material, existing asphalt mixtures repeatedly appear rutting phenomenon (Rutting) on ​​the road surface in summer, loosening phenomenon (Ravelling) caused by plastic deformation, and oil bleeding phenomenon (Bleeding) caused by the increase of road load, etc. This leads to cracks, potholes, and aggregate peeling on the road, which reduces the durability of the road. On average, it needs to be re-paved and maintained after 4-5 years. With the increase of traffic volume, the increase of axle load and the channeliz...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L95/00C08L23/06C08L23/12C08L9/06C08L45/00C08L67/00C04B24/28
Inventor 刘小龙刘红瑛
Owner 北京厚德交通科技股份有限公司
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