What is a "Sieve Analysis" used for in asphalt production?

A "Sieve Analysis" is a critical procedure in asphalt production primarily used to determine the gradation of aggregates. This process involves passing aggregate samples through a series of sieves with varying mesh sizes. By doing so, it allows for the assessment of the particle size distribution within the aggregate mixture.

Understanding the gradation is crucial because it directly impacts the stability, workability, and performance of the asphalt mix. Proper gradation ensures that there is a balanced combination of coarse and fine aggregates, which contributes to the overall strength and durability of the pavement. The results from a sieve analysis help in making adjustments to the mix design, ensuring that the aggregates meet the specified requirements for any particular project.

Other options like measuring asphalt temperature, checking moisture content, or evaluating color are not purposes of a sieve analysis. Each of these aspects relies on different testing methodologies, but do not involve the physical separation and measurement of aggregate sizes that sieve analysis provides.