Geodesic dome construction for lunar habitat

I believe concrete construction to probably be the most cost effective, long term building material. Monolithic structures that are poured in situ, are not practical in a vacuum. Panels could be cast in a construction shack, cured for a month, vacuumed for water recovery, cured again in the lunar daytime and then assembled. Research has already been done on concrete in a vacuum within the temperature ranges of space, and there is no compromise on strength after long term exposure. The small panel size compared to end result structure means that they could be built in starter size construction shacks such as intermodel containers assembled on a rail pallet, in any number required. Containers could be joined together horizontally and vertically then covered with regolith of a few meters to provide crew sheilding. aggregate would come from the moon with portland provided from earth until cheap and easy methods to produce locally become available. Any thoughts?
Don