At what RPM does the gyratory compactor operate?

At what RPM does the gyratory compactor operate?

• A. 25 +/- .5 gyrations a minute
• B. 30 +/- .5 gyrations a minute
• C. 35 +/- .5 gyrations a minute
• D. 40 +/- .5 gyrations a minute

Answer: (B)

The gyratory compactor operates at a standard speed of 30 +/- 0.5 gyrations per minute. This specific RPM is critical because it ensures consistent compaction of asphalt mixtures, allowing for uniform density and structural integrity in asphalt pavement applications. Operating the compactor at this RPM helps simulate field conditions more accurately by mimicking the gradual build-up of asphalt mix density that occurs during the construction process. Achieving the correct compaction is essential for performance characteristics, such as durability, resistance to rutting, and overall service life of the pavement. The margin of error of +/- 0.5 gyrations per minute accounts for slight variations in machine performance, ensuring that the compactor can operate reliably within acceptable parameters. Adhering to this standard is vital for maintaining quality control in asphalt production and achieving optimal results in construction projects.

The gyratory compactor operates at a standard speed of 30 +/- 0.5 gyrations per minute. This specific RPM is critical because it ensures consistent compaction of asphalt mixtures, allowing for uniform density and structural integrity in asphalt pavement applications.

Operating the compactor at this RPM helps simulate field conditions more accurately by mimicking the gradual build-up of asphalt mix density that occurs during the construction process. Achieving the correct compaction is essential for performance characteristics, such as durability, resistance to rutting, and overall service life of the pavement.

The margin of error of +/- 0.5 gyrations per minute accounts for slight variations in machine performance, ensuring that the compactor can operate reliably within acceptable parameters. Adhering to this standard is vital for maintaining quality control in asphalt production and achieving optimal results in construction projects.