| Autor: |
Ryabchikov, Alexander, Kiviste, Mihkel, Udras, Sten-Maikel, Lindpere, Mart, Vassiljev, Anatoli, Korb, Nikolai |
| Přispěvatelé: |
Estonian University of Life Sciences. Institute of Forestry and Rural Engineering. Chair of Rural Building and Water Management |
| Jazyk: |
angličtina |
| Rok vydání: |
2020 |
| Předmět: |
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| DOI: |
10.15159/ar.20.070 |
| Popis: |
Steel fibre-reinforced concrete (SFRC) is widely applied in the construction of civil infrastructure projects, including the following: industrial floors, slabs, walls, and foundations. The application of steel fibres in the reinforcement of concrete remarkably improves the postcracking behaviour of such concrete. In order to estimate this property, the energy involved in absorption is measured by using several valid testing standards: EVS-EN 14651:2005, EVS-EN 14488-5:2006, and ASTM C1550-12a. The objective of this study was to carry out a comparable analysis of the results that have been obtained using previously-mentioned standards and to be able to find a more reliable method for the determination of the fracture toughness of SFRC specimens. Experiments were carried out in accordance with the chosen standards. It was concluded that procedure involved in the ASTM standard provides a smaller variability of results with better levels of repeatability, therefore a smaller volume of specimens can be tested in one series in order to achieve reliable results. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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