I welcome your investigation. Acid and alkalies are two totally incompatible compounds and come from different materials and processes.
Obviously, all materials expand and contract depending on the temperature and moisture to stabilize.
If there is moisture and a substance (wood), moisture can transmit the moisture to any material, be it wood, fiberglass or other materials that have an affinity for moisture since this is a common factor for all materials.
The article from "NASA" is very narrow and not very complete. Since I worked on many NASA projects for rocket test facilities at Edwards AFB, Canoga Park/Santa Susana, CA and Huntsville there was never a mention of the corrosion or acidic effects of concrete because of the basic materials (cement, calcium based based limestone/dolomite or igneous aggregates), The minute snippet of an article on a NASA letterhead may have been a folly or blown out of proportion. In all of the designs for the launch facilities at Kennedy/Cocoa Beach there was not a concern about acid, but salt water and salt contaminated aggregate was minor concern as it is in all of construction Florida, but not universal.
Dick