Cold-mixing repairing material SBS pitch liquid for pit or slot of pitch road surface, and its producing technology
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- 张坚
- Publication Date
- 2008-11-19
- Estimated Expiration
- Not applicable · inactive patent
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Abstract
Description
technical field
[0001] The invention relates to a building material, in particular to an asphalt pavement repair material SBS asphalt liquid and a production process thereof. Background technique
[0002] There are more than 20 million cars in our country driving in 133×10 4 Km highway and 12000Km expressway, and most of them are asphalt roads. Over the years, the asphalt pavement has been damaged by natural wind, rain, sun, freeze-thaw and other disasters, so that the physical and chemical changes of asphalt and mineral aggregates continue to occur, gradually reducing the ability to adapt to climate change. Rapid increase, frequent traffic, heavy traffic load, heavy load repeated rolling, so that the local low-strength road surface is easy to cause cracking and damage to the road surface, with the water penetration of the road surface, the base layer and even the roadbed become soft, and potholes and pits appear. Potholes cause driving speed to drop, damage axles, increas...