What type of material should I use to fill an expansion joint.

You can fill an expansion joint with silicone caulk, however it is recommended to use an elastic epoxy seam sealant after the grout is fully cured, such as Chockfast Expansion Joint material.

What material should I use to set anchor bolts?

When setting anchor bolts it is recommended they are set in a two-part epoxy, Chockfast Grey.