111. High strength fibre reinforced concrete (HSFRC) under high dynamic impact loading

Title: 111. High strength fibre reinforced concrete (HSFRC) under high dynamic impact loading
Author(s): A. Kustermann, M. Keuser
Paper category : conference
Book title: 6th International RILEM Symposium on Fibre Reinforced Concretes
Editor(s): M. di Prisco, R. Felicetti and G.A. Plizzari
Print-ISBN: 2-912143-51-9
e-ISBN: 2912143748
Publisher: RILEM Publications SARL
Publication year: 2004
Pages: 1217 - 1226
Total Pages: 10
Nb references: 15
Language: English

Abstract: High Strength Concrete (HSC) is an improved material which is used for high-rise buildings, bridges and offshore constructions. The addition of fibers in the HSC gives a significant increase of ductility, reduces shrinkage effects and ameliorates the resistance against mechanical attacks. The material properties indicate, that High Strength Fibre Reinforced Concrete HSFRC must be a well-suited material for protection against impact loading with high dynamic effects.
The German Ministry of Defense has supported a research project of the University of the Armed Forces in Munich. The aim of the project was the development of materials and structures, which are able to resist high dynamic impact loadings. Several barriers made of different admixtures were tested under gun fire with a maximum velocity of 890 m/s. Concrete mixtures with short steel fibers showed an optimal compromise between workability, improved ductility and protection against impact. The additional use of polypropylene fibers lead to a higher ductility of the concrete slabs. Due to the increased tensile strength, the scabbing damages at the rearside, caused by the reflection of the tensile wave, are significantly reduced.

Online publication: 2004-08-30
Publication type : full_text
Public price (Euros): 0.00