Modified asphalt Zhao Na I. Introduction Modified asphalt refers to the modification of ordinary asphalt by chemical or physical methods to make it have more superior physical and chemical properties. Modified asphalt usually has high viscosity, softening point, flash point and other characteristics, so that it can maintain good performance in both high and low temperature environments.
Second, the storage of modified asphalt.
1.Storage containers: Containers with good sealing, corrosion resistance and oxidation resistance should be selected to store modified asphalt. Avoid using unsuitable containers, such as metal containers, as the metal may react chemically with the asphalt, affecting its performance. At the same time, the storage tank should be inspected and cleaned regularly to ensure that it is kept in good working order.
2.Environmental conditions: Modified asphalt should be stored in a cool, dry place, away from direct sunlight and high temperatures. Temperatures that are too high may cause the asphalt to soften and deteriorate, while temperatures that are too low may cause the asphalt to harden. Therefore, the temperature of the storage environment should be kept stable.
3.Storage period: The storage period of modified asphalt should be determined according to its quality indicators and use requirements. Generally speaking, unopened modified bitumen can be stored for 6 months to 1 year, and should be used up within 3 months after opening. Expired asphalt should be re-inspected and can only be used after it is qualified.
4.Safety measures: Due to the flammability of modified asphalt, it should be stored away from the fire source and equipped with corresponding fire fighting facilities. Staff should receive safety training on how to handle emergencies.
3. Transportation of modified asphalt.
1.Means of transportation: A special modified asphalt transport truck should be used for transportation to ensure that it has good sealing and can effectively prevent asphalt from leaking during transportation. In addition, the bottom of the transporter should be coated with an anti-stick agent to prevent the asphalt from sticking to the bottom of the vehicle.
2.Transportation route: Choose a flat, well-conditioned route for transportation to avoid violent bumps and vibrations. This prevents the asphalt from separating or settling during transportation.
3.Temperature control: During transportation, maintain a proper temperature to prevent the asphalt from overheating or cooling. Overheated asphalt may cause it to soften or even overflow, while overcooled asphalt may harden it and affect its performance.
4.Protective measures: During transportation, necessary protective measures should be taken, such as covering tarpaulins, etc., to prevent pollutants such as rain and dust from entering the transportation container.
5.Safety measures: Due to the flammable nature of modified asphalt, all relevant safety regulations and procedures should be followed when transporting. Both drivers and escorts should be trained in safety and know how to handle emergencies.
IV. Conclusion. The storage and transportation of modified bitumen is an important part of ensuring its quality and performance. Therefore, the above precautions must be strictly adhered to ensure that the storage and transportation of modified asphalt are safe and effective.
Only in this way can we give full play to the performance advantages of modified asphalt and provide high-quality material guarantee for civil engineering construction.