How should cores be stored after collection to ensure quality?

Cores should be stored in an ice chest with bagged ice on top to ensure quality because this method helps maintain the proper temperature for the asphalt and prevents it from aging or hardening prematurely. Keeping the samples cool is critical to preserving the integrity of the materials, particularly when they might undergo tests that require them to be in a condition as close to their original state as possible. The use of an ice chest helps mitigate the effects of heat, which could otherwise lead to changes in the physical properties of the asphalt.

Storing cores in a standard toolbox may expose them to fluctuating temperatures and potential damage. Placing cores on the dashboard of a vehicle would subject them to direct sunlight and high temperatures, which can lead to deterioration of the asphalt. Storing cores in a sealed plastic bag at room temperature also does not provide adequate temperature control and can result in moisture accumulation, further compromising the quality of the sample.