Reaction Blocks
Twenty-four, 20 K (89 kN) reaction blocks are currently available in the Laboratory.They may be stacked together to form temporary reaction walls and buttresses of various shapes and capacities. They are each 4 x 4 x 8 ft(1.2 x 1.2 x 2.4 m) in size and perforated in three directions with anchor holes that match the 2 ft by 2 ft (0.61 x 0.61 m) grid in the test floor.Each has been cast to meet tight dimensional and flatness tolerances. Blocks are assembled together and anchored to the floor and/or the strong wall using hydrostone and Dywidag bars. Steel molds are available to cast additional blocks should they be necessary.
Load buttress assembled from six reaction blocks (2 hidden from view)
