About the authors
| First name, Middle name, Last name, Scientific degree, Scientific rank, Current position. Full and brief name of the organization, The organization address. | Zhavoronkov M.I. – post-graduate student E-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it Saint-Petersburg State University of Architecture and Civil Engineering The organization address: 190005, Russia, Saint-Petersburg, 2 Krasnoarmeyskay st., 4 |
| Title of the article | Determining characteristics of the destruction and elasticity modulus of fiber-reinforced concrete |
| Abstract. | The purpose was to study the energy and power characteristics of the destruction of fiber-reinforced concrete made with amorphous metal fiber and determination of the elasticity modulus of the composite. The aim of the work was the experimental study of the properties of fiber-reinforced concrete, their shortcomings determined by standard methods, and therefore it was decided to develop an original method for the application of which was necessary to create a special device. The developed device allows charting dependencies of deflections samples from accompanying bending loads. By the obtained diagrams can be calculated the values of force and power characteristics of the destruction and the elastic modulus of fiber-reinforced concrete of the test specimen. To assess the effectiveness of amorphous metal fiber samples manufactured with other types of fibers were tested. The results of comparative tests of the characteristics of fracture toughness and elastic modulus of fiber concretes samples. With the help of the obtained diagrams mechanisms of destruction of fiber-reinforced concrete made with different types of fibers are analyzed. When using amorphous metal fiber observed the increase of modulus and tensile strength in bending, however, such a composite, as opposed to the reinforced steel wire or synthetic fiber, brittle breaks. |
| Keywords. | fiber-reinforced concrete, crack resistance, fracture toughness, modulus of elasticity, amorphous metal fiber. |
| For citations: | Zhavoronkov M.I. Determining characteristics of the destruction and elasticity modulus of fiber-reinforced concrete // Izvestiya KGASU. 2015. №3(33) P.114-120. |
