What is the requirement for construction quality? You know what?
1, emulsified asphalt regeneration and foam asphalt regeneration compaction degree
The compactness of emulsified asphalt for Expressway and first grade highway needs to reach more than 90%, and the degree of regeneration and compactness of foam asphalt needs to reach more than 98%. After two and two grade, the compactness of emulsified asphalt should reach 88%, and the degree of regeneration and compaction of foam asphalt needs to reach 97%. Check twice per lane and every kilometer.
2. Moisture content
The construction moisture content of the cold recycling machine should meet the requirements of the basic specifications, and should be inspected every three working days.
3. Asphalt content mineral aggregate gradation
When the asphalt content mineral aggregate gradation is abnormal, it should be inspected at any time, and the inspection method is oil extraction and screening.
4. Freeze thaw splitting strength ratio
The ratio of freeze-thaw splitting strength should be greater than 70%, and it should be checked every three working days.
5. Other inspection items
The residual stability, dry wet splitting strength ratio, Marshall stability, 15 ℃ splitting strength, etc. need to be checked every working day, which meets the design requirements.
The skilled operation of cold regenerator can greatly improve the work efficiency and shorten the construction period.
1. When using the rear console, turn the switch to the rear control. At this time, the front console does not work. In addition, each small nozzle switch can be opened and closed by using the rear console.
2. The emulsified asphalt equipment cannot be filled too full, and the filler cap must be closed tightly to prevent asphalt overflow during transportation.
3. Before spraying, the emulsified asphalt equipment must check whether the valve position is correct. The hot asphalt added into the emulsified asphalt equipment must reach the working temperature of 160 ~ 180 ℃. If the asphalt is transported for a long distance or the working time is too long, the heating device can be used for heat preservation, but it can not be used as an oil melting furnace.
The above is about the cold recycling machine on the construction quality requirements of the relevant introduction, I hope to help you.