Injectable mortar/resin with high maximum temperature?

I'm looking to specify an injectable mortar/resin for a through bolt connection, because it's a non-standard application the test data within the product datasheets isn't applicable and we are providing additional fire protection on the outside of the connection to limit maximum temperatures during a fire.

Most of the resins seem to have a limit of 70C, are there any that have a higher allowable temperature (assuming it's in a short term, 2 hour fire scenario)? The 70C limit is proving too onerous for the fire protection supplier.