What is the required frequency for extraction and grading tests for bituminous asphalt mixtures if daily production is between 501 to 800 tons?

The required frequency for extraction and grading tests for bituminous asphalt mixtures when the daily production is between 501 to 800 tons is set at one test per 250 tons. This guideline ensures that the quality and performance of the asphalt mixture are adequately monitored, providing a balance between sampling frequency and the volume of production.

This frequency is critical because it allows for timely identification of any inconsistencies or defects in the asphalt. Regular testing according to this standard helps maintain the integrity of the mixture, ensuring that it meets the specifications for both safety and durability. By testing every 250 tons, it allows for sufficient sampling to catch variations in the mixture that could affect performance without being overly burdensome on resources.

Adhering to this frequency plays a vital role in quality assurance processes within asphalt production, ensuring that road surfaces are both safe and sustainable for vehicular traffic.