Cured concrete must meet stated PSI strength. In order to ensure quality control, Pearce collects cylinder samples from the actual job site for independent laboratory analysis. To control accuracy each step of this process is carefully scrutinized and must meet ASTM standards.

The mix is collected in the cylinder in 3 equal layers.	Each layer is rodded 25 times penetrating the previous layer 1"	The full container is tapped with a rubber mallet to settle the mix and release any large air bubbles.
The end is smoothed to complete the test collection.	Finished collection before top is placed on cylinder.	Top securely on container, ready to be coded and placed to cure 24-48 hours before transportation to laboratory.

Containers are labeled to show mix specifications along with date and batch numbers.	The intial cure should be between 60º and 80º F. Test cylinders are also stored in this chest cooler prior to lab transport to keep accidental contact with samples to a minimum.

This is a general guide meant for informational purposes only, for complete testing procedures refer to ASTM standards or contact Pearce Brothers for more information.

Entrained Air Test | Mix Temperature | Slump Test