How many times have you wondered how strong those concrete barriers are that you see in front of military base entrances? Two, maybe three times a day? 
From time to time, someone asks what the concrete barriers are in front of controlled and secure buildings. In this test, the following parameters were used: Read them and then watch the clip.
Truck = 65000 lbs/29484 kgs.
Speed = 50 mph/80.47 kmph.
Kinetic Energy = 5.5 million ft.lbs./760 402.249 m.kg.
The truck stopped in 24in/60.96cm!!
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From time to time, someone asks what the concrete barriers are in front of controlled and secure buildings. In this test, the following parameters were used: Read them and then watch the clip.
Truck = 65000 lbs/29484 kgs.
Speed = 50 mph/80.47 kmph.
Kinetic Energy = 5.5 million ft.lbs./760 402.249 m.kg.
The truck stopped in 24in/60.96cm!!
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