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

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...

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Problems solved by technology

However, its storage stability needs to be further strengthened

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