Skip to main content
Article thumbnail
Location of Repository

Post-Cracking Behaviour of High Strength Fiber Concrete. Prediction and Validation

By Andrejs Krasņikovs, Olga Kononova, Amjad Khabaz, Edgars Mačanovskis and Artūrs Mačanovskis

Abstract

Fracture process in mechanically loaded steel fiber reinforced high-strength (SFRHSC) concrete is characterized by fibers bridging the crack providing resistance to its opening. Structural SFRHSC fracture model was created; material fracture process was modeled, based on single fiber pull-out laws, which were determined experimentally (for straight fibers, fibers with end hooks (Dramix), and corrugated fibers (Tabix)) as well as obtained numerically ( using FEM simulations). For this purpose experimental program was realized and pull-out force versus pull-out fiber length was obtained (for fibers embedded into concrete at different depth and under different angle). Model predictions were validated by 15x15x60cm prisms 4 point bending tests. Fracture surfaces analysis was realized for broken prisms with the goal to improve elaborated model assumptions. Optimal SFRHSC structures were recognized

Topics: crack, fiber concrete, fiber pull-out, strength
OAI identifier: oai:ortus.rtu.lv:12221
Sorry, our data provider has not provided any external links therefore we are unable to provide a link to the full text.

Suggested articles


To submit an update or takedown request for this paper, please submit an Update/Correction/Removal Request.