There are many types of natural stone available, so it is important to choose the right natural stone product for you. Our stone has been tested by a lab in the US and has far surpassed all ASTM requirements for paver material. The most recent tests completed included; PSI (Compressive Strength ASTM C140-15), Absorption rate (ASTM C140-15) and Coefficient of Friction rate (ASTM C140-15).
During a series of tests on the 1” ClassicstoneTM range we see that:
- The average PSI, compression strength is 15,260.
- Absorption rate is 1.2% This is very low for a paver, which is good, as a low absorption rate is crucial, especially for colder climates.
- The slip resistance, measured by the coefficient of friction, showed our products to have a score of 1.46 in dry conditions and 0.94 in wet.
All of our stone is CE marked to meet with strict EU regulations that were introduced in July 2013. European standards EN1341 (flagstones), EN1342 (pavers) and EN1343 (Kerbs) specify the requirements and test methods for each of these. The CE testing covers area’s similar to ASTM including water absorbency, flexural strength and frost resistance. We have had all of our natural stone products tested to show the various properties of each stone and how the stone is likely to behave and react under different circumstances.
For more detailed information about our product testing and results please contact our Customer Service Team on: (888) 240-8704.