Field tests of high performance fiber reinforced concrete slabs: Impact of contact and distant explosions

The article deals with the field tests of concrete slabs made from High Performance Fibre Reinforced Concrete (HPFRC). The tests were performed in the military training areas Boletice and Březina and two types of tests were executed: the contact explosions of PlNp 10 investigating charge penetration through the slabs and the distant explosions examining some other characteristics of the test items. The article also describes the use of ultrasound diagnostic methods for examining the state of the concrete slabs before and after the explosions.