Which tools can be utilized to clean sieves #10 and higher?

The most effective tools for cleaning sieves #10 and higher are a putty knife and a dowel rod. These tools are particularly suitable because they can help dislodge any aggregates or materials that may be stuck in the openings of the sieve. The putty knife serves as a tool to scrape debris out of the mesh, ensuring that the openings remain clear and functional for accurate measurement of aggregate sizes. The dowel rod can be used to push through any remaining material, especially in finer sieves where the mesh can become clogged with particles.

Using these tools together allows for a thorough cleaning process that maintains the integrity of the sieves. It is essential to keep sieves clean to ensure that future aggregate testing yields reliable and valid results. In contrast, the other options, while they may be helpful in some contexts, do not specifically address the requirement for cleaning sieves as effectively. For instance, brushes and vacuums may miss finer particles, whereas water spray could risk damaging the sieve or introducing contaminants.