I would like to get some assurance that the crystalline waterproofing process doesn't interfere with the air-entrainment process. Especially in the admixture application.

When applied as a coating to a hardened concrete structure, crystalline waterproofing materials will not affect the air-entraining system in the concrete. The crystalline structure will form in the capillary tracts of the concrete but will not fill up air entraining bubbles in the concrete as they are physically separated from the capillary tracts. When used as an admixture one particular crystalline waterproofing material will entrain air (Kryton) and the ready mix supplier will have to make an adjustment but the crystalline waterproofing admixtures from other manufacturers have no effect on the amount or quality of the entrained air.

1.What effect if any does concrete with crystalline waterproofing admixture in new batch mixted concrete have on floor coatings such as dyed or stained and polished concrete or two part epoay floor coatings? 2. Can crystalline mixed concrete take the place of micro fiber added to concrete to reduce shrinkage?

The addition of a crystalline admixture to concrete will not usually have an impact on the initial surface absorption of concrete and thus the use of dyes, stains or epoxies should not be affected. If you follow the preparation and application procedures published by the particular coating manufacturer whose product you are using the results should be successful. Crystalline admixtures have been tested and shown to reduce shrinkage in concrete but are not designed as a replacement for micro fibers. When micro fibers have been specified it is usually for a specific reason and I would not recommend making a substitution.