b. In order to compare the output from the model, before and after photographs of the Spadeadam Wall Test are reproduced in Figure 12. The aim of the test was to investigate the behaviour of a hollow concrete blocks (CMU) wall subjected to a
severe blast load having been reinforced with retrofitted masonry support anchors. The wall measured 3m x 3m (10ft x 10ft) and was constructed within a steel reaction frame some eight weeks before the test. Once the wall had cured, it was then
diamond drilled at 225mm (9in) vertical centres, corresponding with the masonry gauge. Retrofitted reinforced masonry support system anchors were then installed, inflated and allowed to cure for 28 days before the test.
Before
After
Figure 12. Before and after views of the Spadeadam Wall Test in June 2001.
The wall was subjected to a blast load from 200kg TNT NEQ @ 12.5m; 534kPa,
1274kPa-ms (440lbs TNT NEQ @ 41ft; 77psi, 185psi-ms).
The front view is at the top.
