What is a criterion for effective splitting in aggregate testing?

Effective splitting in aggregate testing is focused on the prevention of mass loss during the process. This is crucial because any loss of material can lead to inaccuracies in the reported aggregate properties and quantities, ultimately affecting the integrity of the test results. When aggregates are split for testing, the aim is to obtain a representative sample without reducing the overall mass of the aggregate. Maintaining the mass ensures that the sample accurately reflects the total characteristics of the entire batch, which is vital for determining proportions for mix design and achieving desired performance in the final product.

Minimizing dust particles, ensuring thorough mixing, and maintaining temperature are all important considerations in the handling and testing of aggregates. However, they do not directly address the fundamental criterion of ensuring that the sample retains its original mass during the splitting process, which is essential for obtaining valid and reliable test results.