The Effects Of A New Steel Fiber In Concrete
Under Small-caliber Impact
Author(s)
M. Michal, M. Keuser & C. Frey
Abstract
Military facilities, buildings such as embassies or nuclear power plants must be
protected against effects and impacts from terrorist attacks or accidents. In the
course of new building or upgrading existing structures the protective function
against gun fire or debris due to explosions should be fulfilled with small
dimensions. The main material property influencing the resistance against these
threats is the tensile strength. By adding steel fibers post-cracking behaviour and
ductility of components can be improved.
A new type of steel fiber has been tested for application in construction
elements under high loading rates. Protection shields have been produced and the
effect of small caliber gun fire has been investigated. The tests on concrete
shields showed a considerably reduced crater dimension and reduced raptures.
By using steel fibers the endangerment of persons and facilities by debris can be
reduced.
With the tests the positive influence and the fundamental suitability of the
new long fibers could be confirmed. A possible application would be the usage
for barriers or modular systems made of precast concrete or hardening of existing
structures.
Keywords: steel fiber, protection shield, small calibre gun fire.
Keywords
steel fiber, protection shield, small calibre gun fire.
Related Book
Other papers in this volume
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