Hot-mix-cold-laid SBS (styrene butadiene styrene) modified asphalt mixture

A technology of modified asphalt and mixture, which is applied in the field of building materials to achieve stable performance, convenient construction and good anti-rutting performance

Inactive Publication Date: 2012-01-25
上海道柯特沥青科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, its storage stability

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  • Hot-mix-cold-laid SBS (styrene butadiene styrene) modified asphalt mixture
  • Hot-mix-cold-laid SBS (styrene butadiene styrene) modified asphalt mixture
  • Hot-mix-cold-laid SBS (styrene butadiene styrene) modified asphalt mixture

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[0026] The present invention is further set forth below in conjunction with embodiment. It should be understood that these examples are only used to illustrate the present invention, not to limit the scope of the present invention.

[0027] 1. Material selection

[0028] C5 / C9 copolymerized petroleum resin: produced by Zhongde Petroleum Resin Co., Ltd., with a softening point of 100°C.

[0029] Diesel: No.-10 diesel in accordance with GB252-87 standard.

[0030] SBS: SBS produced by Baling Petrochemical Company named YH-791H has a styrene / butadiene ratio of 30 / 70 and a linear structure.

[0031] Polyisobutylene: model PB1300, average molecular weight (Mn) 1317, kinematic viscosity 644cst (100°C), 22000cst (40°C), flash point 228°C, pour point 4°C.

[0032] Petroleum asphalt: 70#-A grade road petroleum asphalt, ductility 164cm, softening point 52.5°C, flash point 295°C, penetration 79mm.

[0033] 2. Grading range:

[0034] Granite was used as coarse aggregate and fine aggr...

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Abstract

The invention provides hot-mix-cold-laid SBS (styrene butadiene styrene) modified asphalt mixture, which is characterized by comprising SBS modified asphalt and aggregates; the aggregates comprise coarse aggregates, fine aggregates and mineral powder; and the SBS modified asphalt comprises the following components by weight percentage: 1.5-3 percent of petroleum resin, 8-12 percent of thinner, 2-6 percent of SBS, 5-10 percent of anti-aging agent, 0.3-0.4 percent of stabilizer and the rest being petroleum asphalt. The hot-mix-cold-laid SBS modified asphalt mixture can be stored for a long time at normal temperature and also has a stable performance. In addition, the invention also has the advantages that the hot-mix-cold-laid SBS modified asphalt mixture has a high softening point and good anti-rutting performance.

Description

technical field [0001] The invention relates to a hot-mixed-cold-paved SBS modified asphalt mixture and a preparation method thereof, belonging to the field of building materials. Background technique [0002] During the long-term use of asphalt pavement, there will be loose, potholes, peeling and other diseases. Pavement disease not only reduces the service capacity of the pavement, but also mainly affects the normal traffic on the road, and the potholes on the expressway may even cause traffic accidents. Therefore, the potholes and damages on the road surface need to be repaired in time. [0003] At present, hot-mix asphalt mixture is mostly used in road construction, which requires high temperature during production and construction, and cannot be opened to traffic immediately after construction, and the product cannot be reused. The environment has a great impact on construction. Hot mix cold paving asphalt mixture is different from ordinary hot mix asphalt mixture. It...

Claims

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Application Information

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IPC IPC(8): C04B26/26
Inventor 李小军张燕
Owner 上海道柯特沥青科技有限公司
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