FDOT Asphalt Paving Level 2 Practice Exam 2025 – All-in-One Guide to Master Your Certification!

The selection of the #8 sieve makes sense in the context of asphalt paving because it reflects the aggregate size that contributes significantly to the overall performance and payment structure in the paving process. The #8 sieve corresponds to an aggregate size of 2.36 mm, which means that particles passing through this sieve size play a critical role in the mixture's workability, density, and overall strength.

In asphalt mixtures, aggregate size is essential because different sizes contribute differently to the physical properties of the asphalt. Sizes that are too fine can lead to issues with drainage and aging, while coarser aggregates provide stability and interlocking properties. The calculation that determines what percentage of pay is attributed to different sieves helps ensure that the final product meets the specified requirements.

Understanding the significance of the #8 sieve helps paving professionals manage the quality of materials used in asphalt mixes. Other sieve sizes may not align with this 5% contribution in the context of overall pay, which typically relates to specific gradation requirements outlined in specifications. This connection allows for better planning and execution of asphalt projects and ensures compliance with industry standards.