You should have concrete with a minimum tensile strength of 350 psi. This recommendation would be considered a “best practice” when using Escoweld, chockfast or most other epoxy grout brands.
When you add new concrete to existing concrete the interface will result in a cold joint and vibration will not transfer across a cold joint. In this situation, special materials will need to be considered in order to bond with the existing concrete. A foundation or mass can be extended with Escoweld or Chockfast materials if the correct concrete preparation is done.
Escoweld and Chockfast epoxy grout has twenty-six times greater damping capabilities compared to concrete.
