Here is the crucial and monumental moment when the bond beams are injected with concrete.
As mentioned in previous posts, the bond beam is a horizontal structural element, usually found as an embedded part of a masonry wall assembly.
The bond beam serves to impart horizontal strength to a wall where it may not otherwise be braced by floor or roof structure.
As this is an existing building where we cannot brace a floor structure, the bond beams hold the 4 walls together.