Huafeng Machinery

Asphalt Production Methods

distillation method: is the regular pressure distillation of crude oil from gasoline, kerosene, diesel and other light fractions, and then by decompression distillation (residual pressure of 10 ~ 100mmHg) out of the decompression distillate oil, the remaining residue in line with the specifications of road asphalt can be produced directly out of the asphalt products, the resulting asphalt is also known as straight-run asphalt, the production of road asphalt is the main method of asphalt.

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Classification of asphalt materials

The first category is ground asphalt, mainly natural asphalt and petroleum asphalt; The second category is tar pitch, mainly coal pitch, shale pitch, peat pitch and wood tar. There are two types of refining of natural bitumen, one is direct mining, such as the bitumen of the Trinidad and Tobago Bitumen Lake; the second is obtained by refining in sandstone and sand. Petroleum asphalt is made from the processing of petroleum products, petroleum asphalt can be categorized according to the following system : According to the production method is divided into: straight-run asphalt, solvent de-oiled asphalt, oxidized asphalt, blended asphalt, emulsified asphalt, modified asphalt and so on; According to the appearance of the form is divided into: liquid asphalt, solid asphalt, diluent, emulsion, modified body, etc.; According to the use of: road asphalt, construction asphalt, waterproof and moisture-proof asphalt, to the use or function of the name of a variety of special asphalt.

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Storage Precautions for Asphalt

Storage place: asphalt should be stored in a dry, light-proof, well-ventilated place, and should be kept away from heat, fire and flammable substances to prevent fire accidents. The storage place should also have lightning, anti-static and other safety facilities.

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Asphalt Cold Patch: why it's the first choice for road repairs

construction is convenient: the biggest advantage of asphalt cold patch is convenient construction. Because it does not need to be heated, so in the construction process, there is no need for specialized equipment and technicians, you only need to lay the cold patch on the broken road, and then compacted with a roller. This construction method not only saves time and cost, has a high cost-effective, reduces the cost of road maintenance, and minimizes the impact on traffic.

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What are the modes of asphalt transportation

Railroad transportation is one of the common ways of asphalt transportation. Transportation by rail can shorten the transportation time, improve the efficiency of transportation, but also can reduce the cost of transportation. The disadvantage of railroad transportation is that it needs to have the corresponding railroad line support, if the distance is too far, the transportation cost may become very high.

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