Micromechanical Investigation of Steel Fiber Reinforced High-Performance Concrete Post-Cracking Behavior
Fibre Concrete 2009 : Technology, Design, Application: Proceedings of 5th International Conference 2009
Andrejs Krasņikovs, Olga Kononova, Andrejs Pupurs

During the fracture process of steel fiber reinforced high-performance (SFRHPC) concrete fibres are bridging the crack in the matrix providing resistance to crack propagation. Broad experimental program were realized and pull-out force versus pull-out fiber length were obtained for three types steel fibers embedded into concrete at different depth and under different angle. Follows types of steel fibers have been used– straight fibers, fibers with end hooks (Dramix), and corrugated form fibers (Tabix). Structural SFRHPC fracture model was created; material fracture process was modeled, based on single fibre pull-out law, which was determined experimentally. Elaborated model allows us to predict steel fiber reinforced concrete (SFRC) mechanical non-linear behaviour, depending on fibre content, concrete matrix mechanical properties and fibres geometry. Prediction results were validated by notched 15x15x60cm prisms 4 point bending tests.


Atslēgas vārdi
Steel fibres; concrete; micromechanics

Krasņikovs, A., Kononova, O., Pupurs, A. Micromechanical Investigation of Steel Fiber Reinforced High-Performance Concrete Post-Cracking Behavior. No: Fibre Concrete 2009 : Technology, Design, Application: Proceedings of 5th International Conference, Čehija, Prague, 17.-18. septembris, 2009. Prague: PTU, 2009, 110.-124.lpp.

Publikācijas valoda
English (en)
RTU Zinātniskā bibliotēka.
E-pasts: uzzinas@rtu.lv; Tālr: +371 28399196