This video shows a spacer being used to create a secure assembly for testing a 3/4 inch diameter bolt.
Follow Manufacturer Specifications.
For a more extensive guide on expansion joints, go to https://www.techmargrout.com/step-2-prepared-concrete/prevent-edge-lifting
For more grouting information visit https://www.techmargrout.com/
For a guide on how to grout Rotating Equipment visit https://www.techmargrout.com/technical/
Ask about live grout training (much more exciting and modern than these videos) or consulting! Info at https://www.techmargrout.com/services/