Concrete blast walls and jersey barriers are an obvious, inexpensive and rapidly-deployable form of mitigation against moving vehicle bombs, but may not be the best long-term solution.
One of the problems with concrete barriers is that if the blast occurs adjacent to the blast wall, the shock wave travelling though the wall will create spalling on the inner face, leading to the displacement of small concrete projectiles which have the capability to inflict fatal injuries.
One solution is to use a bi-steel wall such as that manufactured by Corus (www.corussecurity.com/en/company/corus_bi-steel/). The unique patented steel/concrete composite material offers superior protection from blast. Bi-Steel is approved for use by the UK and US governments for blast protective buildings work and meets the performance standards of PAS 68:2007, the accepted UK classification system for vehicle security barriers.
Blast walls and other anti-terrorism defences are discussed in detail on Security Management Stage 2, during the Corporate Response to Terrorism workshop. The workshop can be attended on a day delegate basis, if desired.
For more information on Security Management Stage 2 or the Corporate Response to Terrorism workshop click on the links below:
http://www.arc-tc.com/pages/university_acredited_sm.asp#sm2
http://www.arc-tc.com/pages/one_day_workshops.asp#c3