Can my equipment foundation be multiple pours of concrete?

Multiple concrete pours are not recommended as there will be a cold joint between pours and vibration will not transfer across a cold joint.

How do I seal expansion joints?

After the grout is cured, remove about a half inch of the expansion joint material and seal the top with an elastic epoxy seam sealant such as Chockfast Expansion Joint material.

How far from an anchor bolt can I place and expansion joint?

An expansion joint should be at least 6 inches from an anchor bolt.